Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in /home/newdedyk/domains/bkmanuals.com/public_html/includes/pages/manual_inc.php on line 26
Garmin HM210DP/DI manuale d’uso - BKManuals

Garmin HM210DP/DI manuale d’uso

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

Vai alla pagina of

Un buon manuale d’uso

Le regole impongono al rivenditore l'obbligo di fornire all'acquirente, insieme alle merci, il manuale d’uso Garmin HM210DP/DI. La mancanza del manuale d’uso o le informazioni errate fornite al consumatore sono la base di una denuncia in caso di inosservanza del dispositivo con il contratto. Secondo la legge, l’inclusione del manuale d’uso in una forma diversa da quella cartacea è permessa, che viene spesso utilizzato recentemente, includendo una forma grafica o elettronica Garmin HM210DP/DI o video didattici per gli utenti. La condizione è il suo carattere leggibile e comprensibile.

Che cosa è il manuale d’uso?

La parola deriva dal latino "instructio", cioè organizzare. Così, il manuale d’uso Garmin HM210DP/DI descrive le fasi del procedimento. Lo scopo del manuale d’uso è istruire, facilitare lo avviamento, l'uso di attrezzature o l’esecuzione di determinate azioni. Il manuale è una raccolta di informazioni sull'oggetto/servizio, un suggerimento.

Purtroppo, pochi utenti prendono il tempo di leggere il manuale d’uso, e un buono manuale non solo permette di conoscere una serie di funzionalità aggiuntive del dispositivo acquistato, ma anche evitare la maggioranza dei guasti.

Quindi cosa dovrebbe contenere il manuale perfetto?

Innanzitutto, il manuale d’uso Garmin HM210DP/DI dovrebbe contenere:
- informazioni sui dati tecnici del dispositivo Garmin HM210DP/DI
- nome del fabbricante e anno di fabbricazione Garmin HM210DP/DI
- istruzioni per l'uso, la regolazione e la manutenzione delle attrezzature Garmin HM210DP/DI
- segnaletica di sicurezza e certificati che confermano la conformità con le norme pertinenti

Perché non leggiamo i manuali d’uso?

Generalmente questo è dovuto alla mancanza di tempo e certezza per quanto riguarda la funzionalità specifica delle attrezzature acquistate. Purtroppo, la connessione e l’avvio Garmin HM210DP/DI non sono sufficienti. Questo manuale contiene una serie di linee guida per funzionalità specifiche, la sicurezza, metodi di manutenzione (anche i mezzi che dovrebbero essere usati), eventuali difetti Garmin HM210DP/DI e modi per risolvere i problemi più comuni durante l'uso. Infine, il manuale contiene le coordinate del servizio Garmin in assenza dell'efficacia delle soluzioni proposte. Attualmente, i manuali d’uso sotto forma di animazioni interessanti e video didattici che sono migliori che la brochure suscitano un interesse considerevole. Questo tipo di manuale permette all'utente di visualizzare tutto il video didattico senza saltare le specifiche e complicate descrizioni tecniche Garmin HM210DP/DI, come nel caso della versione cartacea.

Perché leggere il manuale d’uso?

Prima di tutto, contiene la risposta sulla struttura, le possibilità del dispositivo Garmin HM210DP/DI, l'uso di vari accessori ed una serie di informazioni per sfruttare totalmente tutte le caratteristiche e servizi.

Dopo l'acquisto di successo di attrezzature/dispositivo, prendere un momento per familiarizzare con tutte le parti del manuale d'uso Garmin HM210DP/DI. Attualmente, sono preparati con cura e tradotti per essere comprensibili non solo per gli utenti, ma per svolgere la loro funzione di base di informazioni e di aiuto.

Sommario del manuale d’uso

  • Pagina 1

    ADSL Modem HM210dp/di User Guide[...]

  • Pagina 2

    ADSL Modem HM210dp/di User Guide . ii EN/LZT 108 6492 R2 – October 2003 Copyright  Ericsson AB – 2003 All Rights Reserved Disclaimer The contents of this document are subject to revision without notice due t o continued progress in methodology, design, and manufacturing. Ericsson shall have no liability for any error or damages of any kind r[...]

  • Pagina 3

    Contents EN/LZT 108 6492 R2 – October 2003 iii Contents 1 Introduction 1 1.1 About this User Guide 1 1.2 About the ADSL Modem HM210d 1 1.2.1 Features 1 2 Hardware Description and Installation 2 2.1 Before You Start 2 2.1.1 Package Contents 2 2.1.2 Subscription for ADSL Service 2 2.1.3 System Requirements 2 2.2 Physical Appearance 3 2.2.1 Front Pa[...]

  • Pagina 4

    Contents iv EN/LZT 108 6492 R2 - October 2 003 4.3 The Home Page and System View Table 13 4.4 Commiting Changes and Rebooting 15 4.4.1 Rebooting the HM210dp/di using Options 16 4.5 Quick Configuration 18 5 Basic Configuration 21 5.1 Configuring the ATM Virtual Circuit 21 5.1.1 Adding ATM VCs 21 5.1.2 Modifying ATM VCs 23 5.2 Configuring PPP Interfa[...]

  • Pagina 5

    Contents EN/LZT 108 6492 R2 - October 2 003 v 7.3.2 Enabling DHCP Server Mode 46 7.3.3 Configuring Your PCs as DHCP Clients 47 7.3.4 Viewing, Modifying and Deleting Address Pools 47 7.3.5 Excluding IP Addresses from a Pool 48 7.3.6 Viewing Current DHCP Address Assignments 48 7.4 Configuring DHCP Relay 49 7.4.1 Defining the DHCP Relay Interface(s) 4[...]

  • Pagina 6

    Contents vi EN/LZT 108 6492 R2 - October 2 003 11 Configuring Firewall Settings 78 11.1 Global Firewall Settings 78 11.2 Configuring IP Filters 80 11.2.1 Viewing Your IP Filter Configuration 81 11.2.2 Configuring IP Filter Global Settings 82 11.2.3 Creating IP Filter Rules 82 11.2.4 Viewing IP Filter Statistics 88 11.2.5 Managing Current IP Filter [...]

  • Pagina 7

    Contents EN/LZT 108 6492 R2 - October 2 003 vii 15.2.1 License 110 15.2.2 Term 110 15.2.3 Limited Warranty 110 15.2.4 Intended Use 111 15.2.5 Limitation of Liability 111 15.2.6 Governing Law 111 15.3 Regulatory Information 112 15.3.1 EU Directives 112 15.3.2 Safety Approvals 112 15.3.3 EMC Approvals 113 15.3.4 Telecom Approval 115 15.3.5 Caution 11[...]

  • Pagina 8

    [...]

  • Pagina 9

    Introduction EN/LZT 108 6492 R2 - October 2 003 1 1 Introduction Congratulations on becoming the owner of an Ericsson ADSL Modem HM210dp/di. Your LAN (Local Area Network) will now be able to access the Internet using your high-speed ADSL connection. 1.1 About this User Guide This User Guide describes how to install and setup your HM210dp/di in a Wi[...]

  • Pagina 10

    Hardware Description and Instal lation 2 EN/LZT 108 6492 R2 - October 2 003 2 Hardware Description and Installation This chapter describes the product and provides instruction s about how to install the HM210dp/di in a PC/Windows environment. 2.1 Before Y ou S tart 2.1.1 Package Content s Check the contents of the package against the shipping conte[...]

  • Pagina 11

    Hardware Description and Instal lation EN/LZT 108 6492 R2 - October 2 003 3  An Ethernet hub/switch if you are connecting the device to more than one computer.  For system configuration using the built-in Configuration Manager program you need a web browser such as Internet Explorer v5.0 or later, or Netscape v5.0 or later. 2.2 Physical Appea[...]

  • Pagina 12

    Hardware Description and Instal lation 4 EN/LZT 108 6492 R2 - October 2 003 2.2.2 Back Panel and Connectors The following figure illustrates the back panel of your HM210dp/di: Figur e 2 - Back Panel of the HM210dp/di Description of connectors and buttons:  DSL – The DSL port is used for connecting the HM210dp/di to the ADSL service port (split[...]

  • Pagina 13

    Hardware Description and Instal lation EN/LZT 108 6492 R2 - October 2 003 5 2.4 Connecting the Hardware Follow the procedures below to connect related devices. NOTE! Before you begin, turn the power off for all devices. These include your computer(s), your LAN hub/switch (if applicable), and the HM210dp/di. 1. Connect to the ADSL Line Connect one e[...]

  • Pagina 14

    Local PC Configuration 6 EN/LZT 108 6492 R2 - October 2 003 3 Local PC Configuration By default, the HM210dp/di acts as a DHCP server that automatically assigns all required Internet settings to your PCs, i.e. the DHCP clients. The predefined IP address and DHCP range is as below: LAN Port IP Address 192.168.1.1 Subnet Mask 255.255.255.0 DHCP Range[...]

  • Pagina 15

    Local PC Configuration EN/LZT 108 6492 R2 - October 2 003 7 5. Some configuration files may be copied to your hard disk and if a “Settings Changes” message asks you to restart your PC, you should answer Yes . 3.1.2 In Windows 2000: 1. From the Start menu select Settings > Control Panel and double- click on the Network and Dial-up Connections[...]

  • Pagina 16

    Local PC Configuration 8 EN/LZT 108 6492 R2 - October 2 003 3.2 Assigning S tatic IP Addresses to your PCs In some cases, you may want to assign static IP information to your PCs directly if:  In bridged mode, you have completed the initial configuration and you need to use the IP address and default gateway given by your ISP.  You have obtai[...]

  • Pagina 17

    Local PC Configuration EN/LZT 108 6492 R2 - October 2 003 9 3.2.2 In Windows 2000: 1. From the Start menu select Settings > Control Panel and double- click on the Network and Dial-up Connections icon. 2. Double-click on the Local Area Connection icon for the HM310dp. Be sure to choose the correct one if you have several dial-up icons. 3. Click t[...]

  • Pagina 18

    Getting Started w ith the Configuratio n Manager 10 EN/LZT 108 6492 R2 - October 2 003 4 Getting Started with the Configuration Manager Your HM210dp/di includes a web-based Configuration Manager, which enables you to configure the device settings to meet the needs of your network. 4.1 Accessing the Configuration Manager You can access the Configura[...]

  • Pagina 19

    Getting Started w ith the Configuratio n Manager EN/LZT 108 6492 R2 - October 2 003 11 4.2 Functional Layout The Configuration Manager tasks are grouped into categories, which you can access by clicking the tabs at the top of each page. Each tab displa ys the available tasks in a horizontal menu at the top of the pag e. You can click on these menu [...]

  • Pagina 20

    Getting Started w ith the Configuratio n Manager 12 EN/LZT 108 6492 R2 - October 2 003 4.2.1 Commonly Used Buttons and Icons The table below describes buttons and icons commonly used in the Configuration Manager. Button / Symbol Description Stores in temporary system memory any chang es you have made on the current page. See section 4.4 “Committi[...]

  • Pagina 21

    Getting Started w ith the Configuratio n Manager EN/LZT 108 6492 R2 - October 2 003 13 4.3 The Home Page and System Vi ew T able The Home page - System View – displays when you first access the Configuration Manager. This page is one of two options available in the Home tab (the other is the Quick Configuration page, as described in section 4.5).[...]

  • Pagina 22

    Getting Started w ith the Configuratio n Manager 14 EN/LZT 108 6492 R2 - October 2 003 Table Heading Description Device Displays basic information about the HM210dp/di hardware and software versions, the system uptime (since the last reboot), and the pre configured operating mode. DSL Displays the operational status, version, and performance statis[...]

  • Pagina 23

    Getting Started w ith the Configuratio n Manager EN/LZT 108 6492 R2 - October 2 003 15 4.4 Commiting Changes and Rebooting Whenever you change system settings, the changes are initially placed in a temporary storage (called random access memory or RAM). Your changes are made effective when you submit them , but will be lost if the device is reset o[...]

  • Pagina 24

    Getting Started w ith the Configuratio n Manager 16 EN/LZT 108 6492 R2 - October 2 003 4.4.1 Rebooting the HM210d p/di using Options If, after rebooting the device, you find that it does not operate properly with the new configuration, you can reboot using options that reactivate a previous configuration or the factory default configuration. 1. Sel[...]

  • Pagina 25

    Getting Started w ith the Configuratio n Manager EN/LZT 108 6492 R2 - October 2 003 17 Reboot from Minimum Configuration NOTE! Do not reboot the device using the Reset button on the back panel of the HM210dp/di to activate new changes. This button resets the device settings to the manufacturer’s default values. Any custom settings will be lost.[...]

  • Pagina 26

    Getting Started w ith the Configuratio n Manager 18 EN/LZT 108 6492 R2 - October 2 003 4.5 Quick Configuration The Quick Configuration page allows you to quickly configure your HM210dp/di for Internet connection. Your ISP should provide you with necessary information to complete the quick setup. To quickly configure the system, go to Home > Quic[...]

  • Pagina 27

    Getting Started w ith the Configuratio n Manager EN/LZT 108 6492 R2 - October 2 003 19 Field Description ATM Interface: Select the ATM inte rface you want to use (usually atm-0) for this connection. Operation Mode: Enabled/Disabled . If set to Disabled , the device cannot provide Internet connectivity for your network. Encapsulation: Select the con[...]

  • Pagina 28

    Getting Started w ith the Configuratio n Manager 20 EN/LZT 108 6492 R2 - October 2 003 Field Description DNS Primary/Secondary DNS Server: You may just keep the default 0.0.0.0. If you enter the Primary/Secondary DNS addres ses given by your ISP, these DNS servers will be used in addition to any DNS servers discovered automatically. After completin[...]

  • Pagina 29

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 21 5 Basic Configuration This chapter provides basic configuration instru ctions to get your HM210dp/di run and have your network connected to the Internet. The instructions assume that the HM210dp/di is not predefined with any ATM VC, PPP or IpoA settings. For each connection method, example p[...]

  • Pagina 30

    Basic Configuration 22 EN/LZT 108 6492 R2 - October 2 003 Enter the provided fields as below: Field Description VC Interface: Select a VC interface from the available interfaces, e.g. aal5-0 . VPI and VCI: Enter the VPI/VCI values given by your ISP, e.g. 0/33 . Mux Type: Select LLC or VC as required by your ISP. Max Proto per AAL5: This setting ind[...]

  • Pagina 31

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 23 5. Select Admin > Commit & Reboot and click the Commit button to store your changes to permanent memory. 6. You may need to create a new WAN interface, or modify an existing interface, so that it uses the new VC. See the instructions in t he following sections for configuring a PPP (s[...]

  • Pagina 32

    Basic Configuration 24 EN/LZT 108 6492 R2 - October 2 003 5.2 Configuring PPP Interfaces When powered on, the HM210dp/di initiates a connection through your DSL line to your ISP. The Point-to-Point (PPP) protocol is commonly used between ISPs and their customers to identify and control various communication properties, including:  Identifying th[...]

  • Pagina 33

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 25 2. Click the Add button to display the PPP Interface – Add page: 3. Enter the provided fields as below: Field Description PPP Interface: Select a PPP interface from the available interfaces, e.g. ppp-0 . ATM VC: Select the ATM VC you wish to use for this connection, e.g. aal5-0 . Interface[...]

  • Pagina 34

    Basic Configuration 26 EN/LZT 108 6492 R2 - October 2 003 A private interface connects to your LAN, such as the Ethernet interface. Packets received on a private interface are subj ect to a less restrictive set of protections, because they originat e within the network. The term DMZ (de-militariz ed zone), in Internet networking terms, refers to co[...]

  • Pagina 35

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 27 Security Information Security Protocol: Select PAP or CHAP as required by your ISP. Login Name: Password: The login name and password given by your ISP. NOTE that characters of colon (:), semicolon (;) and questions mark (?) are not allowed when entering login name and password. 5. After ent[...]

  • Pagina 36

    Basic Configuration 28 EN/LZT 108 6492 R2 - October 2 003 5.2.3 Modifying and Deleteing PPP Interfaces To modify a PPP interface, display the PPP Configuration page and click in the “Action(s)” column for the interface you want to modify. The PPP Interface – Modify page displays. You can change only the status of the PPP connection, the secur[...]

  • Pagina 37

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 29 5.3 Configuring EoA Interfaces This section describes how to configure an Ethernet-over-ATM interface on the HM210dp/di, if one is needed to communicate with your ISP. The Ethernet-over-ATM (EoA) protocol is often referred to as RFC1483, which is the Internet specification that defines it. I[...]

  • Pagina 38

    Basic Configuration 30 EN/LZT 108 6492 R2 - October 2 003 2. Click the Add button to display the EOA Interface – Add page: 3. Enter the provided fields as below: Field Description EOA Interface: Select an EoA interface from the availa ble interfaces, e.g. eoa-0 . Interface Sec Type: Public / Private / DMZ . This setting defines the type of firewa[...]

  • Pagina 39

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 31 (such as a company’s publi c Web server). Packets incoming on a DMZ interface – wheth er from a LAN or external source – are subj ect to a set of protections that is in between pu blic and private interfaces in te rms of restrict iveness. Lower Interface: Select an ATM VC interface pre[...]

  • Pagina 40

    Basic Configuration 32 EN/LZT 108 6492 R2 - October 2 003 6. Select Admin > Commit & Reboot and click the Commit button to store your changes to permanent memory.[...]

  • Pagina 41

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 33 5.4 Configuring IPoA Interfaces This section describes how to configure an IPoA (Internet Protocol-over- ATM) interface on the HM210dp/di. An IPoA interface can be used to exchange IP packets over the ATM network, without using an underlying Ethernet over ATM (EoA) connection. Typically, thi[...]

  • Pagina 42

    Basic Configuration 34 EN/LZT 108 6492 R2 - October 2 003 Interface Sec Type: Public / Private / DMZ . This setting defines the type of firewall protections that are in effect on the interface as described below: A public interface connects to the Internet (PPP interfaces are typically public). Packets receive d on a public interface are su bject t[...]

  • Pagina 43

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 35 4. After entering the fields above, click the Submit button and when the confirmation page appears, click Close . 5. You will return to the IpoA Configuration table and see the newly added IPoA entry: 6. Click Map in the “Action” column. The IPoA Interface – Map page appears: 7. Select[...]

  • Pagina 44

    Basic Configuration 36 EN/LZT 108 6492 R2 - October 2 003 5.5 Bridging Connection Mode The HM210dp/di can be configured to act as a bridging device between your LAN and your ISP. Bridges are devices that enable two or more networks to communicate as if they are two segments of the same physical LAN. Although the HM210dp/di is preconfigured to serve[...]

  • Pagina 45

    Basic Configuration EN/LZT 108 6492 R2 - October 2 003 37 5.5.2 Check Y our Connection S t atus Select Home > System Mode . The WAN Interface item should display the interface you created to communicate with your ISP. A green ball in the Status field indicates a successful connection: 5.5.3 Deleting a Bridge Interface To make an interface non-br[...]

  • Pagina 46

    Configuring IP Routes 38 EN/LZT 108 6492 R2 - October 2 003 6 Configuring IP Routes You can use the Configuration Manager to define specific routes for your Internet and network data. This chapter provides instructions for creating routes. Most users do not need to define IP routes. On a typical small home or office LAN, the existing routes that se[...]

  • Pagina 47

    Configuring IP Routes EN/LZT 108 6492 R2 - October 2 003 39 data intelligently. If it cannot determine which of these devices provides a good next hop (because no such route has been defined), then that device will forward the data to its default gateway. Eventually, a high level device, using a predefined IP route, will be able to forward the data[...]

  • Pagina 48

    Configuring IP Routes 40 EN/LZT 108 6492 R2 - October 2 003 Field Description Destination: Specifies the IP address of the destinati on computer. The destination can b e specified as the IP address of a specific computer or an entire network. It can also be spe cified as all zeros to indicate that this route should be used f or all destinations for[...]

  • Pagina 49

    Configuring IP Routes EN/LZT 108 6492 R2 - October 2 003 41 6.3 Adding IP Routes To add an IP route to the routing table, follow the steps below : 1. Select Routing > IP Route > Add . The IP Route – Add page appears: 2. Specify the destination, netmask, and gateway or next hop for this route. For a description of these fields, refer to the [...]

  • Pagina 50

    Configuring DHCP 42 EN/LZT 108 6492 R2 - October 2 003 7 Configuring DHCP You can configure your network and HM210dp/di to use the Dynamic Host Configuration Protocol (DHCP). This chapter provides instructions for implementing DHCP on your network. 7.1 Overview of DHCP DHCP is a protocol that enables network administrators to centrally manage the a[...]

  • Pagina 51

    Configuring DHCP EN/LZT 108 6492 R2 - October 2 003 43 translated to your public IP address on the Internet. Both DHCP server and NAT are enabled in the default configuration.  DHCP Relay Agent If your ISP performs the DHCP server function for your network, then you can configure the HM210dp/di as a DHCP relay agent. When the HM210dp/di receives[...]

  • Pagina 52

    Configuring DHCP 44 EN/LZT 108 6492 R2 - October 2 003 7.3.1 Creating DHCP Server Address Pools To create a pool of IP addresses follow the steps below: 1. Select LAN > DHCP Server . The DHCP Server Configuration page appears: Depending on your preconfigured settings, the table may display one or more address pools, each in a row, or may be empt[...]

  • Pagina 53

    Configuring DHCP EN/LZT 108 6492 R2 - October 2 003 45 Enter the provided fields as below: The Start IP Address , End IP Address , Net Mask and Gateway Address fields are required, the others are optional. Field Description Start IP Address: End IP Address: Specify the lowest and highest IP addresses in the pool, up to a maximum range of 254 addres[...]

  • Pagina 54

    Configuring DHCP 46 EN/LZT 108 6492 R2 - October 2 003 address in both the Start/End IP Address fields. Netmask: Specifies which portion of each IP address in this range refers to the netwo rk and which portion refers to the host (computer). You can use the network mask to distinguish which pool of addresses should be distri buted to a particular s[...]

  • Pagina 55

    Configuring DHCP EN/LZT 108 6492 R2 - October 2 003 47 2. A page appears to confirm the change. 3. Select Admin > Commit & Reboot and click the Commit button to save your changes to permanent storage. 7.3.3 Configuring Y our PCs as DHCP Clients For each computer that you want to configure to receive IP information automatically, configure th[...]

  • Pagina 56

    Configuring DHCP 48 EN/LZT 108 6492 R2 - October 2 003 When modifying an IP address pool, you are only allowed to:  Change the domain name associated with the pool and to exclude IP addresses within its range from distribution. To exclude an IP address, enter it in the field provided and click Add .  If you want to change other attributes, yo[...]

  • Pagina 57

    Configuring DHCP EN/LZT 108 6492 R2 - October 2 003 49 To view a table of all current IP address assignments, select LAN > DHCP Server and on that page click the Address Table button to view the DHCP Server Address Table page. For each leased address, the table lists the following information: Field Description IP Address: The address that has b[...]

  • Pagina 58

    Configuring DHCP 50 EN/LZT 108 6492 R2 - October 2 003 1. Select LAN > DHCP Relay . The DHCP Relay Configuration page appears: This page provides a text box for entering the IP address of your ISP’s DHCP server and a table that lists the interfaces on your HM210dp/di that can relay DHCP information. 2. Type the IP address of your ISP’s DHCP [...]

  • Pagina 59

    Configuring DHCP EN/LZT 108 6492 R2 - October 2 003 51 2. A page appears to confirm the change. 3. Select Admin > Commit & Reboot and click the Commit button to save your changes to permanent storage. 7.4.3 Configuring Y our PCs as DHCP Clients For each computer that you want to configure to receive IP information automatically, configure th[...]

  • Pagina 60

    Configuring NAT 52 EN/LZT 108 6492 R2 - October 2 003 8 Configuring NAT This chapter provides an overview of Network Address Translation (NAT) and instructions for modifying the default configuration on your HM210dp/di. 8.1 Overview of NA T Network Address Translation is a method for disguising the private IP addresses you use on your LAN as the pu[...]

  • Pagina 61

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 53  They provide a measure of security for your LAN by enabling you to assign private IP addresses and then have these and the source port numbers swapped out before your computers access the Internet. The type of NAT function described above is called network address port translation (NAPT). Yo[...]

  • Pagina 62

    Configuring NAT 54 EN/LZT 108 6492 R2 - October 2 003 default), the NAT Rule Configuration page, and the NAT Translations page.  Enable/Disable radio buttons, which allow you to turn on or off the NAT feature.  The NAT Global Information table, which displays the following settings that apply to all NAT rule translations: Field Description TC[...]

  • Pagina 63

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 55 The table provides basic information for each NAT rule you have set up. You can click the Clear button to restart the accumulation of the statistics at their initial values. 8.3 V iewing NA T Rules and Rule S tatistics To view the NAT Rules currently defined on your system, select Services > [...]

  • Pagina 64

    Configuring NAT 56 EN/LZT 108 6492 R2 - October 2 003 The NAT Rule Configuration table displays a row containing basic information for each rule. For a description of these fields, refer to the instructions for adding rules in section 0 “Adding NAT Rules”. From the NAT Rule Configuration page, you can click the Add button to add a new rule, or [...]

  • Pagina 65

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 57 button to reset the statistics to zeros and the Refresh button to display newly accumulated data. 8.4 V iewing Current NA T T ranslations To view a list of NAT translations that have recently been performed and which remain in effect (for any of the defined rules), select Services > NAT and s[...]

  • Pagina 66

    Configuring NAT 58 EN/LZT 108 6492 R2 - October 2 003 order to work while NAT is enabled). NAT Direction The direction (i ncoming or outgoing) of the translation (from the port definition). A NAT direction is assigned to each port; the Ethernet port are defined as incoming port, and the WA N ports are defined as outgoing ports. The NAT dire ction i[...]

  • Pagina 67

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 59 8.5 Adding NA T Rules This section explains how to create rules for the various NAT flavors. 8.5.1 The NAPT Rule The NAT flavor NAPT was used in your default configuration. The NAPT flavor translates all LAN-side private source IP addresses to a single pub lic IP address. It also translates the [...]

  • Pagina 68

    Configuring NAT 60 EN/LZT 108 6492 R2 - October 2 003 5. In the “ Local Address From/To :” fields, type the starting and ending IP addresses respectively, of the range of private IP addresses you want to be translated. Or type the same address in both fields to specify a single IP address. If all LAN IP addresses should be translated, specify 0[...]

  • Pagina 69

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 61 2. In the ” Rule Flavor :” dropdown list, select RDR . 3. In the “ Rule ID :” field, enter an ID for the rule. The Rule ID determines the order in which the rules are invoked (the lowest numbered rule is invoked first, and so on). In some case, two or more rules may be fined to act on th[...]

  • Pagina 70

    Configuring NAT 62 EN/LZT 108 6492 R2 - October 2 003 would typically be used for load balancing, whereby traffic is distributed among several redundant servers. 7. In the “ Global Address From/To :” fields, type the public IP address assigned to you by your ISP. If you have multiple WAN interfaces, in both fields type the IP address of the int[...]

  • Pagina 71

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 63 1. Select Services > NAT > NAT Rule Entry > Add . The NAT Rule – Add page appears: 2. In the ” Rule Flavor :” dropdown list, select BASIC . 3. In the “ Rule ID :” field, enter an ID for the rule. The Rule ID determines the order in which the rules are invoked (the lowest numbe[...]

  • Pagina 72

    Configuring NAT 64 EN/LZT 108 6492 R2 - October 2 003 7. In the “ Global Address From/To :” fields, type the starting and ending IP address that identify the pool of public IP addresses to be translated to your private IP addresses. Or, type the same IP address in both fields (if you also sp ecified a single address in the previous step). 8. Wh[...]

  • Pagina 73

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 65 2. In the ” Rule Flavor :” dropdown list, select FILTER . 3. In the “ Rule ID :” field, enter an ID for the rule. The Rule ID determines the order in which the rules are invoked (the lowest numbered rule is invoked first, and so on). In some case, two or more rules may be fined to act on[...]

  • Pagina 74

    Configuring NAT 66 EN/LZT 108 6492 R2 - October 2 003 to a corresponding address in a range of global addresses (which you specify in the next step). 7. In the “ Global Address From/To :” fields, type the starting and ending IP address that identify the pool of public IP addresses to be translated to your private IP addresses. Or, type the same[...]

  • Pagina 75

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 67 1. Select Services > NAT > NAT Rule Entry > Add . The NAT Rule – Add page appears: 2. In the ” Rule Flavor :” dropdown list, select NAPT . 3. In the “ Rule ID :” field, enter an ID for the rule. The Rule ID determines the order in which the rules are invoked (the lowest number[...]

  • Pagina 76

    Configuring NAT 68 EN/LZT 108 6492 R2 - October 2 003 10. Select Admin > Commit & Reboot and click the Commit button to save your changes to permanent storage. 8.5.6 The P ASS Rule You can create a PASS rule to allow a range of IP addresses to remain untranslated when another rule would otherwise do so. The PASS rule must be assigned a rule [...]

  • Pagina 77

    Configuring NAT EN/LZT 108 6492 R2 - October 2 003 69 5. In the “ Local Address From/To :” fields, type the lowest and highest IP addresses that define the range of private addresses you want to be passed without translation. If you want the PASS rule to act on only one address, type that address in both fields. 6. When you have completed enter[...]

  • Pagina 78

    Configuring DNS Server Addresses 70 EN/LZT 108 6492 R2 - October 2 003 9 Configuring DNS Server Addresses Domain Name System (DNS) servers map the user-friendly domain names that users type into their Web browsers (e.g. “yahoo.com”) to the equivalent numerical IP addresses that are used for Internet routing. When a PC user types a domain name i[...]

  • Pagina 79

    Configuring DNS Server Addresses EN/LZT 108 6492 R2 - October 2 003 71 9.2 Overview of DNS Relay When you specify the HM210dp/di’s LAN port IP address as the DNS address, then the device automatically performs “DNS relay”; i.e. because the device itself is not a DNS server, it forwards domain name lookup requests it receives from the LAN PCs [...]

  • Pagina 80

    Configuring DNS Server Addresses 72 EN/LZT 108 6492 R2 - October 2 003 If “Use DNS” is disabled, you must delete the interface and create a new one with the new setting. Option 2 – Configuring DNS on the HM210dp/di:[...]

  • Pagina 81

    Configuring DNS Server Addresses EN/LZT 108 6492 R2 - October 2 003 73 You can configure the DNS server address to be relayed on the modem if one of the following circumstances applies:  Not using PPP connection to the ISP (or a protocol other than PPP is used, such as EoA).  You use PPP connection and “Use DNS” is already Enabled. Then t[...]

  • Pagina 82

    Configuring RIP 74 EN/LZT 108 6492 R2 - October 2 003 10 Configuring RIP The HM210dp/di can be configured to communicate with other routing devices to determine the best path for sending data to its inte nded destination. This chapter describes how to configure your HM210dp/di to use one of these, called the Routing Information Protocol (RIP). 10.1[...]

  • Pagina 83

    Configuring RIP EN/LZT 108 6492 R2 - October 2 003 75 10.2 Configuring the RIP Follow the steps below to configure your HM210dp/di to use RIP: 1. Select Services > RIP and the RIP Configuration page appears: 2. The page contains radio buttons for enabling or disabling the RIP feature and a table listing interfaces on which the protocol is curren[...]

  • Pagina 84

    Configuring RIP 76 EN/LZT 108 6492 R2 - October 2 003 given destination in the network. The hop count is the sum of the metric values assigned to each port through which data is passed before reaching the destination. Among several alternative routes, the one with the lowest hop count is considered the fastest path. For example, if you assign this [...]

  • Pagina 85

    Configuring RIP EN/LZT 108 6492 R2 - October 2 003 77 You can click the Clear button to reset all statistics to zero and the Refresh button to display any newly accumulated data.[...]

  • Pagina 86

    Configuring Firew all Settings 78 EN/LZT 108 6492 R2 - October 2 003 11 Configuring Firewall Settings The Configuration Manager provides built-in firewall functions, enabling you to protect the system against denial of service (D oS) attacks and other types of malicious accesses to your LAN. You can also specify how to monitor attempted attacks, an[...]

  • Pagina 87

    Configuring Firew all Settings EN/LZT 108 6492 R2 - October 2 003 79 Field Description Blacklist Status: If you want the device to maintain and use a black list, click Enable . Click Disable if you do not want to maintain a list. Blacklist Period(min): Specifie s the number of minutes that a computer’s IP address will remain on the black list. At[...]

  • Pagina 88

    Configuring Firew all Settings 80 EN/LZT 108 6492 R2 - October 2 003 they are initiated. Max Single Host Conn.: Sets the percentage of co ncurrent IP sessions that can originate from a single computer. This percentage should take into account the numbe r of hosts on the LAN. Log Destination: Specifies how attempted violations of the firewall settin[...]

  • Pagina 89

    Configuring Firew all Settings EN/LZT 108 6492 R2 - October 2 003 81 11.2.1 V iewing Y our IP Filter Configuration To view your IP filter configuration, select Services > IP Filter . The IP Filter Configuration page appears: The IP Filter Configuration page displays global settings that you can modify, and the IP filter rule table, which shows a[...]

  • Pagina 90

    Configuring Firew all Settings 82 EN/LZT 108 6492 R2 - October 2 003 11.2.2 Configuring IP F ilter Global Settings The IP Filter Configuration page enables you to configure several global IP Filter settings, and displays a table showing all existing IP Filter rules. The global settings that you can configure are:  Security Level : When High is s[...]

  • Pagina 91

    Configuring Firew all Settings EN/LZT 108 6492 R2 - October 2 003 83 2. Enter or select data for each field that applies to your rule:[...]

  • Pagina 92

    Configuring Firew all Settings 84 EN/LZT 108 6492 R2 - October 2 003 Field Description Rule ID: Rules are processed from lowest to high est on each data packet, until a match is found. It is recommended that you assign rule Ids in multiples of 5 or 10 (e.g. 10, 20, 30) so that you leave enough space betwe en them for inserting a new rule if necessa[...]

  • Pagina 93

    Configuring Firew all Settings EN/LZT 108 6492 R2 - October 2 003 85 Enable if you configure a Log Tag. Start/End Time: The time ran ge during which this rule is to be in effect, specified in military units. Src IP Addre ss: IP address criteria for the source computer(s) from which the packet originates. Use th e following expressions to specify IP[...]

  • Pagina 94

    Configuring Firew all Settings 86 EN/LZT 108 6492 R2 - October 2 003 Source Port: Port number criteria for the compute r(s) from which the packet originates. This field wil l be dimmed (unavailable for entry) if you have not specified a protocol critera. See the description of Src IP Address for the selection option s. Dest Port: Port number criter[...]

  • Pagina 95

    Configuring Firew all Settings EN/LZT 108 6492 R2 - October 2 003 87 Ignore : (Default) The rule will be applied to packets whether or not they contain frag ments, assuming that they match the other criteria. IP Option Pkt: Determines whether the rule should appl y to IP packets that have options specified in their packet headers. You can choose fr[...]

  • Pagina 96

    Configuring Firew all Settings 88 EN/LZT 108 6492 R2 - October 2 003 11.2.3.1 IP Filter Rule Examples Example 1 – Blocking a specific computer on your LAN from accessing web servers on the Internet; 1. Add a new rule for outgoing packets on the ppp-0 interface from any incoming interface (this would include the eth-0 interface, for example). 2. S[...]

  • Pagina 97

    Configuring Firew all Settings EN/LZT 108 6492 R2 - October 2 003 89 You can click the Clear button to reset the count to zero and the Refresh button to display newly accumulated data. 11.2.5 Managing Current IP Filter Sessions When two computers communicate using the IP protocol, an IP session is created for the duration of the communication. The [...]

  • Pagina 98

    Configuring Firew all Settings 90 EN/LZT 108 6492 R2 - October 2 003 filter rule, are assigned a session index). Time to expire The number of se conds in which t he connection will automatically expire. Protocol The underlying IP prot ocol used on the conne ction, such as TCP, UDP, IGMP, etc. I/F The interface on which the IP Filter rule is effecti[...]

  • Pagina 99

    Configuring Firew all Settings EN/LZT 108 6492 R2 - October 2 003 91 Check the protocol type you want to block and click the Submit button. Make sure to use the Commit feature to save your changes to the permanent memory. To unblock a specific protocol, uncheck the prot ocol and repeat the submit and commit tasks. The following list describes each [...]

  • Pagina 100

    Configuring Firew all Settings 92 EN/LZT 108 6492 R2 - October 2 003 hardware address (i.e. MAC add resses). Certain types of computers, such as diskl ess workstations, must use RARP to determine their IP addre ss before communicating with othe r network devices. AppleTalk A networking protocol used for Apple Ma cintosh networks. NetBEUI NetBIOS En[...]

  • Pagina 101

    Administration Tasks EN/LZT 108 6492 R2 - October 2 003 93 12 Administration Tasks 12.1 Changing the System Date and T ime The HM210dp/di keeps a record of the current date and time, which it uses to calculate and report various performance data. You can change the date and time as required. On this page you may also specify the host name and the d[...]

  • Pagina 102

    Administration Tasks 94 EN/LZT 108 6492 R2 - October 2 003 is currently in effect. After you initially set the time, turning DST on or off will adjust the current displayed time by one hour in the appropriate dire ction. You must remember to change the DST option each spring and fall – it will not change automatically. Name: You can use this fiel[...]

  • Pagina 103

    Administration Tasks EN/LZT 108 6492 R2 - October 2 003 95 To add login User Id or change the login password, proceed as follows: 1. Select Admin > User Config . The User Configuration page appears: 2. To modify the login password click the (modify) icon in the “Action(s)” column and then change the current password: 3. To add a new login ID[...]

  • Pagina 104

    Administration Tasks 96 EN/LZT 108 6492 R2 - October 2 003 4. After making changes, click the Submit button. 5. Select Admin > Commit & Reboot and click the Commit button to save your changes to permanent storage. 12.3 Upgrading the Software This option allows you to upgrade the software running on the HM210dp/di. All system software is cont[...]

  • Pagina 105

    Administration Tasks EN/LZT 108 6492 R2 - October 2 003 97 2. Click Brow se to locate the firmware file. The name of the upgrade file must be one of the following: TEImage.bin, TEDsl.gsz, TEAppl.gsz, Filesys.bin, TEPatch.bin. 3. Click the Upload button to start the upgrade. After a few seconds, a message like the following should appear (the file n[...]

  • Pagina 106

    Administration Tasks 98 EN/LZT 108 6492 R2 - October 2 003 Select the VC on which you want to execute diagnostics and then click the Submit button. The diagnostics utility will run a series of test to check whether the device’s connections are up and working. This takes only a few seconds and the results for each test are displayed on screen. A t[...]

  • Pagina 107

    Administration Tasks EN/LZT 108 6492 R2 - October 2 003 99 12.5 Modifying Port Settings The modem’s HTTP/Telnet/FTP services are accessible using the standard port number 80, 23 and 21 respectively. It is possible that you want to designate a publicly accessible HTTP, Telnet or FTP server on your LAN side and you want to shift the modem’s HTTP/[...]

  • Pagina 108

    Administration Tasks 100 EN/LZT 108 6492 R2 - October 2 003 12.6 V iewing System Alarms You can use the Configuration Manager to view information about alarms that occur in the system. Alarms, also called traps, are caused by a variety of system events, including connection attempts, resets, and configuratio n changes. Although you will not typical[...]

  • Pagina 109

    Viewing DSL Line Inform ation EN/LZT 108 6492 R2 - October 2 003 101 13 Viewing DSL Line Information To view configuration parameters and performance statistics for the ADSL line, select WAN > DSL . The DSL Status page displays: The DSL Status page displays the current information on the DSL line performance. The page refreshes about every 10 se[...]

  • Pagina 110

    Viewing DSL Line Inform ation 102 EN/LZT 108 6492 R2 - October 2 003 You can click the Clear button to reset all counters to zero, and the Refresh button to redisplay the page with newly accumulated values. You can click the DSL Param button to display data about the configuration of the DSL line, as shown below: The DSL Parameters and Status table[...]

  • Pagina 111

    Viewing DSL Line Inform ation EN/LZT 108 6492 R2 - October 2 003 103 The DSL Statistics page reports error data relating to the last 15 minutes interval, the current day, and the previous day. At the bottom of the page, the Detailed Interval Statistic table displays links you can click to display detailed data for each 15 minute interval in the pas[...]

  • Pagina 112

    Troubleshooting 104 EN/LZT 108 6492 R2 - October 2 003 14 Troubleshooting This chapter suggests solutions for resolving so me of the problems you might encounter when using your HM210dp/di, and provides instructions for using several IP utilities to diagnose problems. 14.1 LEDs Indication/Symptom Troubleshooting Suggestion The PWR LED does not illu[...]

  • Pagina 113

    Troubleshooting EN/LZT 108 6492 R2 - October 2 003 105 14.2 Internet Access Indication/Symptom Troubleshooting Suggestion My PC cannot access the Internet. Use the PING utility described below to check whether your PC can communicate with the HM210dp/di’s LAN IP address (by default 192.168.1.1). If it canno t, check the Ethernet cabling. If you s[...]

  • Pagina 114

    Troubleshooting 106 EN/LZT 108 6492 R2 - October 2 003 14.3 Configuration Manager Program Indication/Symptom Troubleshooting Suggestion I forgot/lost my Configuration Manager Username or Password. If you have not changed the password from the default, try using root as both the Username and Password. Otherwise, you can reset the device to the defau[...]

  • Pagina 115

    Troubleshooting EN/LZT 108 6492 R2 - October 2 003 107 1. From the St art menu select Run… . 2. Type winipc fg and click OK . The “IP Configuration” dialog b ox appears. 3. From the scroll down menu at the top, select the network card that you are using. This is important if you have more than one network card. 4. Make sure that the Default g[...]

  • Pagina 116

    Troubleshooting 108 EN/LZT 108 6492 R2 - October 2 003 14.4.3 How to use PING PING is a command you can use to check whether your PC can recognize other computers on your network and the Internet. A ping command sends a message to the computer you specify. If the computer receives the message, it sends messages in reply. To use it, you must know th[...]

  • Pagina 117

    Important Infor mation EN/LZT 108 6492 R2 - October 2 003 109 15 Important Information 15.1 Product Care and Maintenance NOTE! These are important guidelines for safe and efficient use of your device. Read this informati on before using your Ericsson ADSL Modem HM210dp/di. Your ADSL Modem HM210dp/di is a highly sophisticated electronic device. To g[...]

  • Pagina 118

    Important Infor mation 110 EN/LZT 108 6492 R2 - October 2 003 15.2 License Agreement This is a legal agreement, Agreement, between you, Licensee, the recipient of the enclosed Software on compact disc, diskette or any other media and any upgrades thereof, and Ericsson AB, the Vendor. By opening the sealed software package and/or using the software [...]

  • Pagina 119

    Important Infor mation EN/LZT 108 6492 R2 - October 2 003 111 and your exclusive remedy under this warranty (which is subject to you returning the Software to an certified reseller with a copy of your receipt) will be, at Vendor's option, to replace the disc(s) / diskette(s) or refund the purchase price for the Software and terminate this Agre[...]

  • Pagina 120

    Important Infor mation 112 EN/LZT 108 6492 R2 - October 2 003 15.3 Regulatory Information 15.3.1 EU Directives The HM210dp/di meet the following EU directives for the CE-mark:  73/23/EEC, Low Voltage Directive (LVD)  89/336/EEC, Electromagnetic Compatibility Directive (EMC)  1999/5/EC, Radio Equipment and Telecommunication Terminal Directi[...]

  • Pagina 121

    Important Infor mation EN/LZT 108 6492 R2 - October 2 003 113  CSA-C22.2 No. 60950  IEC 60950 3 rd Edition: 1999 15.3.2.1 UL 1950 Statement When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock and injury to persons, including the following: 1. Do not use this produc[...]

  • Pagina 122

    Important Infor mation 114 EN/LZT 108 6492 R2 - October 2 003 15.3.3.1 FCC Part 15 Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause un[...]

  • Pagina 123

    Important Infor mation EN/LZT 108 6492 R2 - October 2 003 115 15.3.4 T elecom Approval The HM210dp/di is approved according to the following telecom standard:  FCC Part 68 15.3.4.1 FCC Part 68 Statement The Federal Communications Commission (FCC) has established Rules which permit this device to be directly connected to the telephone network. St[...]

  • Pagina 124

    Important Infor mation 116 EN/LZT 108 6492 R2 - October 2 003 authorized U.S. service agency for all such work. Locations and phone number of factory or authorized U.S. service points are as following: Special FCC rules apply to equipment connected behind a PBX or KTS. Company: Ericsson Inc. Address: 6300 Legacy Drive, Plano, TX 75024, USA Tel: 972[...]

  • Pagina 125

    Important Infor mation EN/LZT 108 6492 R2 - October 2 003 117 15.3.8 Intended Use The HM210dp/di is intended for indoor public and private use.[...]

  • Pagina 126

    Glossary 118 EN/LZT 108 6492 R2 - October 2 003 16 Glossary - A - ADSL Short for A symmetric D igital S ubscriber L ine . A variation of the DSL technologies that is most familiar to home and small business users. ADSL is called "asymmetric" because most of its two-way or duplex bandwidth is devoted to the downstream direction, sending da[...]

  • Pagina 127

    Glossary EN/LZT 108 6492 R2 - October 2 003 119 Broadband A telecommunications technology that can send different types of data over the same medium. DSL is a broadband technology. Broadcast To simultaneously send the same message to multiple recipients. - C - CHAP Short for C hallenge H andshake A uthentication P rotocol . A type of authentication[...]

  • Pagina 128

    Glossary 120 EN/LZT 108 6492 R2 - October 2 003 The DNS system is, in fact, its own network. If one DNS server doesn't know how to translate a particular domain name, it asks another one, and so on, until the correct IP address is returned. Domain name A domain name is a user-friendly name used in place of its associated IP address Downstream [...]

  • Pagina 129

    Glossary EN/LZT 108 6492 R2 - October 2 003 121 network. Firewalls can be implemented in both hardware and software, or a combination of both. Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet pass throug[...]

  • Pagina 130

    Glossary 122 EN/LZT 108 6492 R2 - October 2 003 Alternatively, the maximum number of hops that a packet is allowed to take before being discarded (see also TTL) . Host A computer that is connected to a TCP/IP network, including the Internet. Each host has a unique IP address. HTTP Short for H yper T ext T ransfer P rotocol . HTTP is the main protoc[...]

  • Pagina 131

    Glossary EN/LZT 108 6492 R2 - October 2 003 123 Private IP addresses are also LAN IP addresses, but are considered "illegal" IP addresses to the Internet. They are private to an enterprise while still permitting full network layer connectivity between all hosts inside an enterprise as well as all public hosts of different enterprises. ISP[...]

  • Pagina 132

    Glossary 124 EN/LZT 108 6492 R2 - October 2 003 Packet Data transmitted on a network consists of units called packets. Each packet contains a payload (the data), plus overhead information such as where it came from (source address) and where it should go (destinat ion address). PAP Short for P assword A uthentication P rotoc ol , the most basic for[...]

  • Pagina 133

    Glossary EN/LZT 108 6492 R2 - October 2 003 125 the circuit is preprogrammed by the carrier as a path through the network. It does not need to be set up or disconnected for each session. - R - Remote In a physically separate location. For example, an employee away on travel who logs in to the company’s intranet is a remote user. RFC Short for R e[...]

  • Pagina 134

    Glossary 126 EN/LZT 108 6492 R2 - October 2 003 - T - T1.413 The American National Standards Institute (ANSI) standard for asymmetric digital subscriber line using discrete multitone modulation, which the G.dmt standard is based on. TCP Abbreviation of T ransmission C ontrol P rotocol , and pronounced as separate letters. TCP is one of the main pro[...]

  • Pagina 135

    Glossary EN/LZT 108 6492 R2 - October 2 003 127 Upstream The direction of an upstream signal is from the user's computer to the ISP/service provider (uploading). - V - VC A VC ( V irtual C ircuit ) is a connection from your ADSL router to your ISP. VPI and VCI A VPI ( V irtual P ath I dentifier ) is an 8-bit field while VCI ( V irtual C hannel[...]