Digisol DG-FS4528P, Management Manual, Page: 935 / 973

C
HAPTER
46 | DHCP Commands
DHCP Relay
– 935 –
ip dhcp relay
information policy
This command specifies how to handle client requests which already
contain DHCP Option 82 information.
S
YNTAX
ip dhcp relay information policy { drop | keep | replace }
drop - Floods the request packet onto the VLAN that received the
original request instead of relaying it.
keep - Retains the Option 82 information in the client request,
inserts the relay agent’s address, and unicasts the packet to the
DHCP server.
replace - Replaces the Option 82 information circuit-id and remote-
id fields in the client’s request with information provided by the
relay agent itself, inserts the relay agent’s address, and unicasts the
packet to the DHCP server.
D
EFAULT
S
ETTING
replace
C
OMMAND
M
ODE
Global Configuration
U
SAGE
G
UIDELINES
Refer to the Usage Guidelines under the ip dhcp relay information
option command for information on when Option 82 information is
processed by the switch.
When the Option 82 policy is set to “keep” the original information in
the request packet, the frame type specified by the ip dhcp relay
information option command is ignored.
E
XAMPLE
This example sets the Option 82 policy to keep the client information in the
request packet received by the relay agent, and forward this packet on to
the DHCP server.
Console(config)#ip dhcp relay information policy keep
Console(config)#
R
ELATED
C
OMMANDS
ip dhcp relay information option (932)
ip dhcp relay server (931)
ip dhcp snooping (625)