System information

Configuring the CMTS
6-5
3. Optionally use the cable helper-address mta command in Interface
Configuration mode to configure a secondary helper IP address for the
Multimedia Terminal Adapter (MTA) device to forward only UDP broadcasts, as
shown below:
MOT(config-if)#cable helper-address <A.B.C.D> mta
where:
A.B.C.D is the destination DHCP server IP address.
4. The IP helper address necessary for the BSR to forward packets to the DHCP
server. Issue the the ip helper-address command in Interface Configuration
mode to forward default UDP broadcasts including IP configuration requests to
the DHCP server, as shown below:
MOT(config-if)#ip helper-address <A.B.C.D>
where:
A.B.C.D is the destination DHCP server IP address.
5. Use the show ip dhcp stats command in Interface Configuration mode to display
information about DHCP upstream and downstream port statistics, as shown
below:
MOT(config-if)#show ip dhcp stats [<0-15> | <cr>]
where:
0-15 is the module slot number.
cr is a command return.
Note: The IP helper address must be entered for the DHCP Lease Query
function to work regardless of whether the relay agent option is used.