Router, T1 Question


I have a router running Vyatta.  It doesn't have a T1 card, and they are too expensive.  I was looking on ebay and see Cisco 1721 routers.

I'm wondering if I can terminate a T1 into the 1721 and then connect into the Vyatta router.  However, I want to be able to control everything from the Vyatta.  So basically make the Cisco pass all traffic...

Can anyone explain if this is possible, and how complicated/sloppy it will make things?
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You can probably just put the provisioned IP from the ISP on the 1721, and then pass routed traffic to the Vyatta, to do the rest.
Create a 30 bit net between your two routers and stick a couple of static addresses on your 1721 to route traffic out and in. That should take care of it.

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