I am trying to reconfigure a network. This network has ISA server firewall connected to a sisco router 800 via the external NIC. I believe that there is misconfiguration in the network. The IP address of the external network card is 172.16.0.20 & default gateway is 172.16.0.1. I can ping from the isa server machine to 172.16.0.1, which is the default gateway but I can’t do telnet. I am assuming that the 172.16.0.1 is the IP address of the router. Is there any way to find the ip addresses of the router?
Thanks in advanced