I need to join two different gateway internet connections from same isp


I have a cisco 2511 router with 2 Serial interfaces.

I have two internet connections 2Mbps and 1Mbps from same ISP but on different gateway. I want to join them to get 3 Mbps on Cisco 2511. Whether this one is possible and how to do that?

Can someone send me a code for this?

Karthik snipped-for-privacy@marskarthik.com

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Straight-forward way is simply point equal-cost default routes over each interface and enable per-packet CEF switching; your provider also needs to two point equal-cost routes towards your network. However chances that you won't get 3Mbps on 2511 as its performance on minimal (64 bytes) packets is only 2.25Mbps at best. Also, such load-balancing assumes that links are of equal bandwidth, while in your case they're not. In order to unequal-cost load balancing you have to use EIGRP routing (chances are your provider won't do it) or multi-chassis multilink PPP (chances are your provider won't do this either).

Kind regards, iLya

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Charlie Root

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