User`s manual

88
DWS-1008 User’s Manual
D-Link Systems, Inc.
Conguring and Managing IP Interfaces and Services
• If the address is not in use, MSS congures the VLAN that has the DHCP client
enabled with the IP address received from the DHCP server. MSS then congures
the other values as follows:
• Default gateway - MSS 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 congured on the switch,
and DNS is enabled, the congured 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, MSS sends a DHCP
Decline message to the server and generates a log message.
• If the address is in a subnet that is already congured on another VLAN on the
switch, MSS sends a DHCP Decline message to the server and generates a log
message.
If the switch is powered down or restarted, MSS does not retain the values received from
the DHCP server. However, if the IP interface goes down but MSS is still running, MSS
attempts to reuse the address when the interface comes back up.
Conguring the DHCP Client
To congure the DHCP client on a VLAN, use the following command:
set interface vlan-id ip dhcp-client {enable | disable}
The vlan-id can be the VLAN name or number.
The following command enables the DHCP client on VLAN corpvlan:
DWS-1008# set interface corpvlan ip dhcp-client enable
success: change accepted.
You can congure 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-congured
DHCP server, use the following command:
clear interface vlan-id ip