110Configuring and Managing IP Interfaces and Services

Default gateway—WSS Software adds a default route for the gateway, with a metric of 10.

DNS domain name and DNS server IP address—If the default domain name and DNS server IP address are already configured on the switch, and DNS is enabled, the configured values are used. Otherwise, the values received from the DHCP server are used.

If the address offered by the DHCP server is already in use, WSS Software sends a DHCP Decline message to the server and generates a log message.

If the address is in a subnet that is already configured on another VLAN on the switch, WSS Software sends a DHCP Decline message to the server and generates a log message.

If the switch is powered down or restarted, WSS Software does not retain the values received from the DHCP server. However, if the IP interface goes down but WSS Software is still running, WSS Software attempts to reuse the address when the interface comes back up.

Configuring the DHCP Client

To configure the DHCP client on a VLAN, use the following command:

set interface vlan-idip dhcp-client {enable disable}

The vlan-idcan be the VLAN name or number.

The following command enables the DHCP client on VLAN corpvlan:

23x0# set interface corpvlan ip dhcp-client enable

success: change accepted.

You can configure the DHCP client on more than one VLAN, but the client can be active on only one VLAN.

To remove all IP information from a VLAN, including the DHCP client and user-configured DHCP server, use the following command:

clear interface vlan-idip

Note. This command clears all IP configuration information from the interface.

The IP interface table flags the address assigned by a DHCP server with an asterisk ( * ). In the following example, VLAN corpvlan received IP address 10.3.1.110 from a DHCP server.

23x0# show interface

* = From DHCP

 

 

 

VLAN Name

Address

Mask

Enabled State RIB

----

--------------- --------------- --------------- ------- ----- --------

4

corpvlan

*10.3.1.110

255.255.255.0 YES

Up

ipv4

320657-A

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Nortel Networks 2300 manual Set interface vlan-idip dhcp-client enable disable, 23x0# show interface