Cisco Systems 1800 manual

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Table of contents for the manual

  • Page 1

    CHAPTER 5-1 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 5 Configuring a LAN with DHCP and VLANs The Cisco 1800 series integrated services f ixed-conf iguration routers support clients on both physical LANs and virtual LANs (VLANs). The routers can use the Dynamic Host Conf iguration Protocol (DHCP) [...]

  • Page 2

    5-2 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 Chapter 5 Configuring a LAN with DHCP and VLANs Configure DHCP When you conf igure a DHCP server , you must conf igure the server properties, policies, and DHCP options. Note Whene ver you change serv er properties, you must reload the server with the [...]

  • Page 3

    5-3 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 Chapter 5 Configuring a LAN with DHCP and VLANs Configure DHCP Step 3 ip dhcp excluded-address low-addr ess [ high-addr ess ] Example: Router(config)# ip dhcp excluded-address 192.168.9.0 Specifies IP addresses that the DHCP server should not assign to[...]

  • Page 4

    5-4 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 Chapter 5 Configuring a LAN with DHCP and VLANs Configure DHCP Configuration Example The follo wing conf iguration example shows a portion of the conf iguration f ile for the DCHP conf iguration described in this chapter . ip dhcp excluded-address 192.[...]

  • Page 5

    5-5 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 Chapter 5 Configuring a LAN with DHCP and VLANs Configure VLANs Message Sent BOOTREPLY 0 DHCPOFFER 0 DHCPACK 0 DHCPNAK 0 Router# Configure VLANs Perform these steps to conf igure VLANs on your router, be ginning in pri vile ged EXEC mode: Command Purpo[...]

  • Page 6

    5-6 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 Chapter 5 Configuring a LAN with DHCP and VLANs Configure VLANs Verify Your VLAN Configuration Use the following commands to vie w your VLAN conf iguration. • show —Entered from VLAN database mode. Displays summary conf iguration information for al[...]

  • Page 7

    5-7 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 Chapter 5 Configuring a LAN with DHCP and VLANs Configure VLANs Bridge Type: SRB Bridge Number: 1 STP Type: IBM Router# show vlan-switch VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default ac[...]

  • Page 8

    5-8 Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide OL-6426-02 Chapter 5 Configuring a LAN with DHCP and VLANs Configure VLANs[...]