Troubleshooting guide

Troubleshooting the CMTS
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3. If the CM has an IP address and must be reset, use the clear cable modem
reset command in Privileged EXEC mode as shown in the following example:
RDN#clear cable modem <ip-address> reset
where:
ip-address is the IP address of the CM
4. If all CMs are unable to obtain an IP address, use the clear cable modem all
reset command to remove all CMs from the station maintenance list and reset
them:
RDN(config-if)#clear cable modem all reset
5. If CMs still cannot obtain an IP address, there may be a problem with the
DHCP server or the provisioning configuration. Ensure that the DHCP server
is operational and configured correctly. Refer to Provisioning Problems Cause
CMs Not to Register section for more information.
6. To verify that a particular CM obtained an IP address, enter the show cable
modem command in Privileged EXEC mode, as shown in the following
example:
RDN#show cable modem <mac-address>
where:
mac-address is the MAC address of the CM.