troubleshooting Question

Config for Cisco 1720 T1

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otto45 asked on
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I know next to nothing about Cisco routers, but even so I foolishly decided to tackle the task of setting up a Cisco router on my own and things have not gone well. I just had a T1 line installed in my home. I have a Cisco 1720 Router with a WIC 1DSU T1 card installed. I'm not sure if it matters, but I will be using this line primarily to VPN into my employer's corporate network.

My service provider gave me the following information:

WAN Network:
Cust LAN IPs:

DNS: primary secondary

encapsulation: PPP
crc: 16

This is a home network. I have a PIX 501 firewall that I would like to add to the mix as well as a Linksys WRT54G (v1) wireless router, but these can wait till later.

I can connect to my Cisco 1720 router through a serial cable. I have tried using sample configurations I found on the Internet and doing my best to figure out how to modify them to meet my needs, but so far nothing has worked. I have also tried using the Cisco ConfigMaker application. In ConfigMaker I added devices for EthernetLAN, Cisco 1720 Router, and Internet. I connected EthernetLAN and Cisco1720 devices with an Ethernet connection with the IP address I connected the Cisco1720 and Internet devices with a PPP connection and tried assigning it all four IP addresses (one at a time) given to my by my service provider. After each alteration I used the Deliver Configuration Wizard to push the configuration out to the router. Each time the ethernet indicators on the router light up as does the CD indicator on the WIC, but the LP indicator never lights up. (The WIC 0/0 indicator is lit.)

The ideal solution would be one that holds my hand through the configuration process with step-by-step instructions. However, I am not entirely technically deficient, so a solution that includes a sample configuration would be just as welcome -- as long as it is a full configuration and not just the parts that relate to the T1 (I don't know what it is that I don't know).

Please let me know if there are any further details I can provide or if there is any additional info I should request from my service provider.

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