Dedicated Point to Point T1 Connection via 2620 Routers

Can you be more specific? Do you have this setup?

ISP ---RTR1 -----new T1 --- RTR2

or

ISP1 ---RTR1 -----new T1 --- RTR2 ---ISP1

or

ISP ---RTR1 -----new T1 --- RTR2 ---ISP2

Hansang,

A T1 line from the same ISP is brought into the demarc at each site so I guess it would the second scenario you described...

ISP1---RT1---new T1--- RT2 --- ISP1

Hope this clear up my question...

BV

In that case, you don't need routable IP's on the transit (new) T1 connection. The religious debate about whether this is a good idea or not is proably a moot point in this day and age.

Just make sure you account for the routing to and from RT1 subnets and RT2 subnets. You can run an IGP (RIP2 for example) or you can use static routes.

Assuming you're getting a default route from your ISP, make sure you redistribute that into your IGP. This way, you get a redundant route out if the right side link to ISP1 goes down. RT2 folks will know to follow the default out via ISP1/RT1 path.

Hansang,

I am not sure if this will change the equation, but there is an existing T1 at site2 to provide Internet access for LAN users at site2. The idea is to connect the network between the two sites using this new T1 (dedicated site to site connection) and also have the LAN users behind router1 use the same existing T1 at site2 to get outside/ Internet access.

Thanks.

BV

snipped-for-privacy@gmail.com wrote:

In that case, what you want to do is make the default route coming from site2's ISPs to be more attractive than site1's ISP. This way, site 1 and site 2 users will use the RT2-ISP link. If that should fail, everyone will use RT1's ISP link.