EIGRP - Multiple Tunnels - Possibility

Unanswered Question
Oct 25th, 2009

Hi,

Sounds like my earlier post was not clear on this topic.

There are 3 IPSEC GRE Tunnel between Site_A to Site_B with EIGRP as routing protocol

On Site_B each IPSEC GRE Tunnel is with different ISP on the Same Router.

But traffic flows only from tunnel which has a static entry to destination public IP.

How to tune the config to make all tunnels active and send traffic when other tunnels are down or possible a load balancing scenario.

Is this possible.

I have this problem too.
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Amin Shaikh Mon, 10/26/2009 - 06:42

Hi, Based on some reading I am sure DMVPN can do this.

But I am keen to understand will it work as I mentioned.

If more information is needed in terms of config, I can upload.

Amin Shaikh Mon, 10/26/2009 - 11:49

Thanks for the support.

Tunnels are terminated on Routers at both end. Have a look at attachment.

In Common scenario with one Service provider terminating on Router we have

ip route 0.0.0.0 0.0.0.0 192.168.4.1

If I have three ISP terminated on same router with sub-interfaces and have 3 GRE tunnels then what needs to be tuned to make it working.

Attachment: 

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