Cisco Newbie trying to setup two point-to-point T1s

[jozero]

I have no experience with Cisco gear and little experience with routers in general (I set up Foundry ServerIrons mostly). We have equipment in cabinets in two datacenters, each to which we have one point-to-point T1. So from our office we have two point-to-point T1s: one to datacenter1, one to datacenter2.

I have a 2621 with two T1 csu/dsu cards that will be the office router and two 2610s with T1 csu/dsu cards that will reside in each of the datacenters. I've tried using the Cisco configmaker, but I can't seem to get what I want.

From an IP perspective, our internal network is a 192.168.1/24, datacenter1 is 192.168.10/24, and datacenter2 is 192.168.11/24. Datacenter1 and Datacenter2 are behind Foundry ServerIrons (connected to the datacenter switch via 100baseT, doing NAT).

I want the 2621 to route between the two point-to-point T1s. I'm not sure what routing protol I need to use, nor how to set it up... Also, do I use PPP or HDLC (I'm assuming HDLC for now)?

Any sample configurations of this nature that anyone could offer?

Thanks much!

jo

 

[jozero]

In addition to the above questions, can I directly connect Serial0 of the 2621 to the Serial0 of one of the two 2610's to test a setup? What type of cable should I use for this? I've tried the black flat RJ48 that comes with the router, but I can't seem to get a "CD" on either end.

Thanks again!

-jo

 

[wybnormal]

Here is a link with the pinouts for a T1 crossover cable.

http://www.packetattack.com/T1-loopback/t1-loopback_frame.htm

I used this config to test preloaded routers with the WIC T1 cards before I carried them to the remote sites.

Here is where you can get the config for two routers back to back

http://www.packetattack.com/1001_sub_page_6_5.html

About 1/2 way down.

MikeS
Find me at

http://www.packetattack.com

"Take advantage of the enemy's unreadiness, make your way by unexpected routes, and attack unguarded spots."
Sun Tzu

 

[CCIEWANNABE]

Link: Sample Configuration

http://www.cisco.com/warp/public/116/ppp_back.html

http://www.cisco.com/warp/public/779/smbiz/service/configs/examples.htm

Route once; switch many

 

[CCIEWANNABE]

Link for leased line troubleshooitng:

http://www.cisco.com/warp/public/779/smbiz/service/troubleshooting/ts_ll.htm

Route once; switch many