I need to help with interesting issue we have.
We have created NAT from one interface of PIX to other with access-list permiting something interesting for NAT and everything works but UDP traffic from specific pool and from Cisco VPN client no. We dont see traffic on the other side of firewall. But when we ping to the same destination (from the same pool) like for VPN traffic, traffic flows perfectly and we see xlate in PIX. Only for UDP traffic and from specific pool (192.168.3.0)from Cisco VPN, PIX doesnt create NAT xlate.
nat (_inside_) 12 access-list NAT_to_VPN
global (outside) 12 x.x.x.x netmask 255.255.255.255
access-list NAT_to_VPN extended permit ip 192.168.2.0 255.255.254.0 10.123.0.0 255.255.0.0
192.168.3.0 is included in pool 192.168.2.0/23