Where is the csu/dsu in your layout? You need one of them to talk from the t1 to the router. All of my routers were purchased with the WICT1-DSU built in so I just terminate there. If you have an external csu like from Adtran you need the cable going from the csu to the router, depending on the interface.
Here's what I would recommend to segment the networks from each other. Make sure your router has 2 ethernet ports, set one port up on their network and the other on your network. Setup a loopback port and route anything going from network A to network B to that loopback and vice versa, but anything going to and from the Internet would be routed properly. Also....it's really really really necessary to setup some sort of firewall. Perhaps that's where you can do your routing from network to internet. Setup a Linux box with 3 NICs, 1 for each network and 1 for the internet router. Setup the firewalling and away you go. If you need more help, feel free to contact me directly. Jason Morris CCDA CCNP Network Administrator MJMC, Inc. 708-225-2350 [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Friday, September 28, 2001 3:30 PM To: NT System Admin Issues Subject: Router connection issue Hi Everyone, I've been a lurker for quite a while (learning bunches), but now I have a problem that totally confounds me. There are two companies in the building where I work. Each company has a separate network connected through a separate Cisco router to a T-1. For financial reasons, the two companies have agreed to share a single T-1. What I would like to do is have a switch that both routers plug into, and which then uplinks to the single T-1. We do not want to co-mingle the networks. According to Cisco's documentation, it is a straight-through cable from the router to the T-1. If I connect the switch or a hub between our router and its T-1, I get an alarm on the router and no connection lights on the switch/hub. I've also tried using a crossover cable with the same effect and have tried using/not using the uplink port on the switch/hub. Have also tried restarting the router between connection changes. What am I missing? I'm ready to give up and head to the nearest bar for a pitcher of White Russians. TIA, Pat Pat Marshall Systems Administrator Microsoft Certified Professional Flying Rhinoceros 1440 NW Overton Street Portland, OR 97209 (503) 552-8700 (503) 221-7282 (Fax) Want to unsub? Do that here: http://www.w2knews.com/rd/rd.cfm?id=unsub Need a good FAQ? Try this one first: http://www.ultratech-llc.com/KB/ Confidential: This e-mail and any files transmitted with it are the property of Lanco International and/or its affiliates, are confidential, and are intended solely for the use of the individual or entity to whom this e-mail is addressed. If you are not one of the named recipient(s) or otherwise have reason to believe that you have received this message in error, please notify the sender at the above e-mail address and delete this message immediately from your computer. Any other use, retention, dissemination, forwarding, printing or copying of this e-mail is strictly prohibited. Want to unsub? Do that here: http://www.w2knews.com/rd/rd.cfm?id=unsub Need a good FAQ? Try this one first: http://www.ultratech-llc.com/KB/
