Cisco Cisco Digital Service Access Node (DSAN) 8211 Troubleshooting Guide

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Chapter 4    Host Registration 
 
 
 
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4032301 Rev A 
 
Verify the CMTS tunnel configuration with your CMTS administrator. 
 
Confirm that the IP data is flowing in the DNCS and CMTS match. 
IP Address Acquisition 
After receiving system time, the eHost obtains an IP address using DHCP. You can 
verify receipt of the IP address on CLI diag page 4.0, as shown in the following 
example. 
 
Note: The actual value of the IP address depends on the network IP configuration. 
Troubleshooting 
If the eHost does not have an IP address: 
 
Verify that the DHCP server is reachable on the IP network to which the eHost is 
connected. 
If using a relay agent in your CMTS configuration, verify that the eHost DHCP 
policy and relay agent are assigned to the same IP network. 
 
Use a packet sniffer to see if DHCP messaging is occurring between the DHCP 
server and eHost. 
If not, confirm that the eHost MAC address is authorized on your network, and 
verify with your DHCP administrator that the eHost is assigned to the correct 
DHCP policy.