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Load Balancing over Multiple IPSEC SAs

Unanswered Question
Sep 15th, 2006
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I need to load balance IPSEC with GRE over multiple T1s. My current solution is to use two routers, one to hold the physical T1s and the other to form a single SA back to the home router. If I use one router, the traffic does not load balance over the multiple SAs that are formed to the home router. Is there a way to bundle the T1s into a single, virtual interface so that I only use one SA?

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umedryk Thu, 09/21/2006 - 08:26
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IPSec is supported with process and fast switching. To get load balancing with the same DA/SA pair the router must be process switching. If the performance of process switching is enough, then you can do it.

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