Load balancing in Cisco router?

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Jun 24th, 2010
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I got a Cisco 2811 with two HWICs connected to two ISP's and a WIC which is connected to internal. I have default route to both ISP's in the router configuration. How can I do load balancing so that half of my traffic go through one ISP and the remaining go via the other ISP?

- Ribin

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ribin.jones Fri, 06/25/2010 - 08:34
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I think this example explains load balancing using BGP. I don't have BGP in place.

- Ribin

west33637 Fri, 06/25/2010 - 12:43
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Hello ribin. configure ip cef globally on the router and the router's switching process will automatically perform per destination load balancing over both default routes. You can also configure CEF to do per packet load balancing. on the interfaces configure ip load-sharing per-packet (depending on the ios version).

without IP cef, you'll still get perdestination load balancing by default.


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