Hi Guys, I've been working on this for two days now and I don't know what else to be done. I have a cisco 2811 router. The FE0/0 IP is 172.19.100.240 while the FE0/1 IP is 192.168.4.1. A host 192.168.4.2 whose gateway is 192.168.4.1 cannot ping a ...