Hi, I have an application that is communicating over a L2L vpn connection. The client is a XP Pro SP2 box, that initiates a tcp connection to a remote site by sending a SYN packet to TCP Port 7200. The server then responds to the XP client by sending the usual SYN/ACK response. The XP client receives the SYN/ACK packet (I'm using a packet sniffer on the box) but never responds with a ACK packet to the server. The server then sends several SYN/ACK packets again trying to finish establishing the connection, but eventually times out. Has anyone seen something like this before? I don't understand why an application that initiates its own tcp handshake, won't even respond back to the server. Tia, j
