I am working on a new Intranetwork , I am creating three domains within this intranet. I have three routers one for each domain and three switches. Each switch is a CISCO 3624 with two slots one Ethernet and one Serial port on each Slot. The problem that I am finding is that after I configure the routers and the switches i can ping from the pc to the etherenet prot of the router but I cannot ping the serial port IP address. Is it a probblem with my addressing? for example: I would use 192.168.3.1/24 for the e0 and for s0 i would use 192.168.10.3/24 and the host computer would have 192.168.3.10 with the GW of 192.168.3.1. I put in a clock rate of 64000 but I'm not shure if that even matters in this case. Please help.