I have a PIX 501 (6.3(5)) at the main office and Cisco 877 and a 1701 (both IOS 12.4) at some branch offices. With our current configuration we can launch the VPN tunnel from the branch end and everthing works okay apart from ping/ICMP. Also we dont seem to be able to bring up the tunnel from the head office to the branches.
The configs are attached. Any ideas?