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Upgrade path from Linksys BEFVP41 router

We want to expand our 3 locations VPN network to 12 locations that use the VPN feature of Linksys BEFVP41 routers for our VPN network over DSL.  We do not know whether the BEFVP41 router can really support the load at the center of this "star network".  I am seek suggestions and opinions about our plan.  The conditions are:
1>  This network is for daily internal email and a burst of "end of day" data transfer. (a few MB per location)
2>  No real application run over the wire.  There may be VNC session to administer the system.
3> We have limited budger.
My questions:
1> Do we need a better router at the center of the "star"?
2> If so, what is the upgrade path? (not limited to Linksys, other vender like CISCO will be consider)

Thanks ahead

1 Solution
If your using a hub and spoke technology to connect your remote sites together, the Linksys would probably do fine int that capacity, however the termination point would be more of a concern. Since your terminating more than one tunnel onto the router, the overhead for 12 tunnels would be more than the processing power of the BEFVP41 can handle because they don't have the horse power to be a termination point. You could either get a Cisco Concentrator to terminate all of these tunnels on or even a Cisco 3620/40 running the IPSEC IOS and it should do the trick. A Cisco 3620, using the IPSEC IOS, can effectively handle 200 IPSEC tunnels with modest throughput.

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