When I scan the interface ip address of a PIX (version 6.2.2.111) with Nessus, I'm shown a Security Issue Warning refering to non-random ip id values in the ip_id field in IP packets. Some research indicates that this can be used for:stealth os finge...

I'm using a vpn client to connect to a PIX. After I've established the VPN connection, I can reach most IP addresses via ping but there is one address that I can't reach. I can reach it when connected directly to the LAN and I can ping it from the PI...