I would appreciate if anyone can give me an advice for configuring the variable for the IP address of a particular router interface. All this is about
the router being a DHCP client which receives a new IP address every
now and then and using something like "$ETH0/0_IPADDR" instead of "ANY" in the access-list. As you know there's a way to use a variable with banner or hostname. Is there any way to do with the IP address?