We have a cisco PIX 501 on site that connects back to ISA 2004 for VPN.
The link is up and stable and we are able to communicate with the PIX and PC’s on site from our core network. However, intermitantly we are unable to contact either the PIX or the PC’s from one VLAN on the core network while still being able to connect from the main VLAN.
We have several sites that are configured in the same way and this is the only site where this is happening.
The config is the same as other sites except the network IP addresses etc.
There are NAT rules and Crypto rules for the two networks that the site needs to access in the core.
Logs on the PIX and ISA have failed to show anything usefull.
Has anyone else had this problem?
