I'm playing with a couple of Cisco 1720's and trying to make them work. Each of them has 1 WIC 1DSU-T1 (http://www.cisco.com/en/US/products/hw/routers/ps221/products_data_sheet09186a00801a9184.html)
I reset both routers and configured onboard FastEthernet interfaces. However, I'm confused about these WIC's. They show up as Serial interfaces and I cannot bring them up.
I tried connecting them to each other and to a laptop via regular CAT5 cross-over cable, but all it shows is
Interface IP-Address OK? Method Status Prot
FastEthernet0 192.168.3.103 YES manual up down
Serial0 10.0.0.2 YES manual down down
(routers' configuration is provided below)
My questions are:
1. What am I doing wrong? Do I need to set up clock rate, etc for this "serial" interfaces?
2. Can I troubleshoot these 1DSU-T1 WIC's with a cross-over cable and a laptop at all? (Linux 2.6.8 with regular Ethernet interface)
Thanks in advance for any help!