I have configured a pix 515r for vpn connections. When I try to establish a connection the vpn client 3.x calls error – that remote peer is not responding. We are connected is the ISP with a leased line and a cisco 2501. The 2501 is not nat’ing; the outside interface of the pix has been assigned a registered ip.
I enabled the debug for ipsec, isakmp and engine. The pix is receiving the connection but it’s almost as if there is no route back. I have a single route on the 2501 that routes all traffic to the interface connected to the internet, ip route 0.0.0.0 0.0.0.0 serial1. the pix has a route that routes all traffic to the Ethernet interface on the 2501.
Do I need any other routes with regard to the ip pool? However if I connect my notebook directly to the outside interface of the pix with an ip address on the same range, I can establish a connection…
When trying a connection from a remote site, the sites in question are performing NAT, could this be the problem?