The customer is facing the issue of CPE not having any service and we assisted them to check for that.
The reason of CPE unable to get the IP address is that the DHCP server allocates the same IP address for a different CPE.
For example:
The IP xxx.xxx.xxx.70 has been allocated to MAC 008E-xxxx-xxxx.
From the packets, we can find that the locatedip address is xxx.xxx.xxx.70.
But the mac-address is 6477-xxxx-xxxx.
You can configure the below command on CMC to check the IP conflict:
security anti-ipconflict refresh enable.
After configuring, this configuration will make CPE 008E-xxxx-xxxx go offline and cpe 6477-xxxx-xxxx go online.
But if cpe 008E-xxxx-xxxx was allocated the same IP address with cpe 6477-xxxx-xxxx, cpe 6477-xxxx-xxxx will get offline and cpe 008E-xxxx-xxxx will get online for a while.
The IP conflict during DHCP-server assigns the IP to another CPE. So the solution is to make DHCP-server allocate a different IP address for a different CPE.
Due to the stand-alone mode, it does not support the configuration of security.
Below is the command:
anti-ipconflictrefresh enable.
display security conflict log all to query the IP conflict logs.
