2nd aryoba
entirely... what the fsck is websense doing addressing their stuff with RFC1918 addresses?
You mentioned about an IPSEC tunnel with Websense, do you have the config for that?
My 00000010bits, you could source/destination NAT on each end as aryoba
alluded to.
on your 2951 : ip nat static 172.18.50.V w.x.y.z
on websense's end : ip nat static 172.18.u.v w.x.y.z
but that'd be between you and Websense to agree to and set up the address ranges on both ends.
The Right Way To Do This(TM) is routing and tunneling to a non-RFC1918 address on websense's end and be done with it.
If Websense NATs to the same address range on their end as yours, you shouldn't have to worry about it.
Regards