Odd - asa can ping across vpn tunnel, PC behind it cannot

[ciscospaz]

PC1->asa5505-vpn tunnel-asa5520<-Scully

from the diagram above, asa5505 can ping across the tunnel to Scully and vice versa, but PC1 cannot ping Scully. I've set this up the same way as several other tunnels, checked evrything and re-created several times, no luck. Any one know where to look next?

[JORGE RODRIGUEZ]

what does asdm real time log tells you when you ping 10.1.1.51 from 172.16.201.20 ?

is 172.16.201.0 network in your crypto acl on the asa5520 side for interesting traffic? double check your acls policy for the tunnel on both sides, or post them to look .

Regards