i have two PIX runing version 6.3(3) and 7.1(1). Following is my topology and attached config showing running configuration and debugs.
What am i missing?
By the way, this is the only thing that catches my attention from the 6.3 debugs you provided:
ISAKMP (0): SA is doing pre-shared key authentication using id type ID_FQDN
One thing you can try is to set the ISAKMP identities on both sides:
isakmp identity address (on the 6.3 side)
cry isakmp identity address (on the 7.x side)