Displaying And Maintaining Dhcp Relay Agent Configuration - 3Com S7906E Configuration Manual

To do...
Configure
user-defined
Option 82
To support Option 82, it is required to perform related configuration on both the DHCP server and
relay agent. Refer to
this kind.
If the handling strategy of the DHCP relay agent is configured as replace, you need to configure a
padding format for Option 82. If the handling strategy is keep or drop, you need not configure any
padding format.
If sub-option 1 (node identifier) of Option 82 is padded with the device name (sysname) of a node,
the device name must contain no spaces. Otherwise, the DHCP relay agent will drop the message.

Displaying and Maintaining DHCP Relay Agent Configuration

To do...
Display information about DHCP
server groups correlated to a specified
or all interfaces
Display Option 82 configuration
information on the DHCP relay agent
Display information about bindings of
DHCP relay agents
Display statistics information about
bindings of DHCP relay agents
Display information about the
refreshing interval for entries of
dynamic IP-to-MAC bindings
Display information about the
configuration of a specified or all
DHCP server groups
Display packet statistics on relay agent
Configure the
padding content dhcp relay information
for the circuit ID circuit-id string circuit-id
sub-option
Configure the
dhcp relay information
padding content
remote-id string
for the remote ID
{ remote-id | sysname }
sub-option
Configuring the Handling Mode for Option 82
display dhcp relay { all |
interface interface-type
interface-number }
display dhcp relay information
{ all | interface interface-type
interface-number }
display dhcp relay security
[ ip-address | dynamic | static ]
display dhcp relay security
statistics
display dhcp relay security
tracker
display dhcp relay
server-group { group-id | all }
display dhcp relay statistics
[ server-group { group-id | all } ]
Use the command...
Use the command...
3-8
Remarks
Optional
By default, the padding
content depends on the
padding format of Option
82.
Optional
By default, the padding
content depends on the
padding format of Option
82.
for DHCP server configuration of
Remarks
Available in any view
Available in any view
Available in any view
Available in any view
Available in any view
Available in any view
Available in any view