I am getting debug output from the PIX running 6.3, but nothing from the 7.1 PIX.
IPSEC(key_engine): request timer fired: count = 2,
(identity) local= x.x.100.2, remote= x.x.130.241,
local_proxy= x.x.120.1/255.255.255.255/0/0 (type=1),
remote_proxy= x.x.110.131/255.255.255.255/0/0 (type=1)
IPSEC(key_engine): request timer fired: count = 1,
(identity) local= x.x.100.2, remote= x.x.130.241,
local_proxy= x.x.115.1/255.255.255.255/0/0 (type=1),
remote_proxy= x.x.110.238/255.255.255.255/0/0 (type=1)