[c-nsp] High CPU util on a 2811 with two ipsec tunnels

[Chris Mason]

> C2800NM-ADVIPSERVICESK9-M), Version 12.4(15)T1.  Why would this traffic not

I wouldn't recommend using that IOS as it was deferred a long time ago
for IPSEC/GETVPN issues to name just a few - as well as T2, T3, etc.
Try the latest 12.4(15)T13/T14 release, but I don't think it will help
the CPU as I have seen similar results.

/Chris