3Com S7902E Command Reference Manual - page 542
2-7
Parameters
drop
: Specifies to drop messages containing Option 82.
keep
: Specifies to forward messages containing Option 82 without any change.
replace
: Specifies to forward messages containing Option 82 after replacing the original Option 82 with
the Option 82 padded in the specified padding format.
Description
Use the
dhcp relay information strategy
command to configure DHCP relay agent handling strategy
for messages containing Option 82.
Use the
undo dhcp relay information strategy
command to restore the default handling strategy.
The handling strategy for messages containing Option 82 defaults to
replace
.
Examples
# Configure the DHCP relay agent handling strategy for messages containing Option 82 as
keep
.
[Sysname] interface vlan-interface 1
[Sysname-Vlan-interface1] dhcp relay information enable
[Sysname-Vlan-interface1] dhcp relay information strategy keep
dhcp relay release ip
Syntax
dhcp relay release
ip
client-ip
View
System view
Default Level
2: System level
Parameters
client-ip
: DHCP client IP address.
Description
Use the
dhcp relay release
ip
command to request the DHCP server to release a specified client IP
address.
Examples
# Request the DHCP server to release the IP address 1.1.1.1.
[Sysname] dhcp relay release ip 1.1.1.1
dhcp relay security static
Syntax
dhcp relay security static ip-address
mac
-
address
[
interface interface-type interface-number
]