Cisco Cisco Digital Service Access Node (DSAN) 8210 Troubleshooting Guide
Chapter 3 CMTS Registration
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IP Address Acquisition
After ranging has succeeded, the eCM tries to obtain an IP address using DHCP.
You can verify the IP address on CLI diag page 4.0, as shown in the following
example.
You can verify the IP address on CLI diag page 4.0, as shown in the following
example.
The DHCP response will include references to a Time of Day (TOD) server and a
TFTP Server. The TOD server is used to get the system time and other data for use in
eCM SNMP queries. The default date is 1/1/1970.
TFTP Server. The TOD server is used to get the system time and other data for use in
eCM SNMP queries. The default date is 1/1/1970.
Troubleshooting
If the eCM does not have an IP address:
Verify that the DHCP server is reachable on the IP network to which the eCM is
connected. If your CMTS configuration uses a relay agent, verify that the eCM
DHCP policy and relay agent are properly assigned to the same IP network.
connected. If your CMTS configuration uses a relay agent, verify that the eCM
DHCP policy and relay agent are properly assigned to the same IP network.
Use a packet sniffer to see if the DHCP messaging is occurring between the
DHCP server and the eCM.
DHCP server and the eCM.
Confirm that the eCM MAC address is authorized on your network, and verify
with the DHCP administrator that the eCM is assigned to the correct DHCP
policy.
with the DHCP administrator that the eCM is assigned to the correct DHCP
policy.