Is there any way to make a Cisco 831 router log DHCP changes from the provider?
I'm seeing some weird things. Sometimes, I discover I'm getting a 192.168.#.# address instead of a public IP address. I've discussed it with Mediacom, but they don't believe me. When I get a private IP address on the provider interface, I am unable to use the Internet for some strange reason. Since I have VOIP at home, that's a problem (no phone service when this happens).
If I could dump DHCP activity to a file on my TFTP server, I could keep it and provide it to Mediacom so perhaps I could get them to fix this.