R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101

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dhcp select relay
Syntax
dhcp select relay
undo dhcp select relay
View
Interface view
Default level
2: System level
Parameters
None
Description
Use dhcp select relay to enable the relay agent on the current interface. Upon receiving requests from an
enabled interface, the relay agent will forward these requests to outside DHCP servers for IP address
allocation.
Use undo dhcp select relay to restore the default.
After DHCP is enabled, the DHCP server is enabled on an interface by default. Upon receiving a client's
request from the interface, the DHCP server allocates an IP address from the DHCP address pool to the
client.
When the working mode of the interface is changed from DHCP server to DHCP relay agent, the IP
address leases is deleted. However, these ARP entries may conflict with new ARP entries generated on the
DHCP relay agent. To avoid this, delete the existing IP address leases when changing the interface
working mode to DHCP relay agent.
Examples
# Enable the DHCP relay agent on the interface GigabitEthernet 0/1.
<Sysname> system-view
[Sysname] interface GigabitEthernet 0/1
[Sysname-GigabitEthernet0/1] dhcp select relay
display dhcp relay
Syntax
display dhcp relay { all | interface interface-type interface-number } [ | { begin | exclude | include }
regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
all: Displays information of DHCP server groups that all interfaces correspond to.