Configure DHCP Relay for an Interface
Configure the DHCP relay behavior on the interface.
About this task
You can configure only one relay for a VLAN, regardless of how many addresses are configured on that VLAN. The default address is the smallest address configured. If the relay is a VRRP address, the default value is the first VRRP address configured.
Procedure
-
Enter Interface Configuration
mode:
enable
configure terminal
interface GigabitEthernet {slot/port[/sub-port][-slot/port[/sub-port]][,...][slot/all][all]} or interface vlan <1–4059>
Note
If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.
Example
Configure the maximum hop count:
Switch:1(config-if)#ipv6 dhcp-relay max-hop 30
Disable the remote ID:
Switch:1(config-if)#no ipv6 dhcp-relay remote-id
Variable Definitions
Use the data in the following table to use the ipv6 dhcp-relay command.
|
Variable |
Value |
|---|---|
|
max-hop <1–32> |
Specifies the maximum number of hops a DHCP packet can take from the DHCP client to the DHCP server. The default is 32. |
|
remote-id |
Enables the relay agent to add information about the relay to DHCPv6 messages before relaying the messages to the DHCP server. The default is disabled |
Use the data in the following table to use the interface command.
|
Variable |
Value |
|---|---|
|
<1-4059> |
Specifies the VLAN ID in the range of 1 to 4059. By default, VLAN IDs 1 to 4059 are configurable and the system reserves VLAN IDs 4060 to 4094 for internal use. On switches that support the vrf-scaling and spbm-config-mode boot configuration flags, if you enable these flags, the system also reserves VLAN IDs 3500 to 3998. VLAN ID 1 is the default VLAN and you cannot create or delete VLAN ID 1. |
|
{slot/port[/sub-port][-slot/port[/sub-port]][,...][slot/all][all]} |
Identifies the
slot and port in one of the following formats:
|