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Firewall client

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Firewall client - 9.Nov.2001 12:17:00 PM   


Posts: 21
Joined: 25.Oct.2001
Status: offline
I developed an MFC-based client/server WinSocket application.The client app connects to server app via TCP Port 5005.
The client calls CAsyncSocket::Connect() with server's IP and 5005 as its
paremeters to connect to server socket.
Now, my app runs well if the client app and server one locate in same LAN.LAN PCs have installed MS Firewall Client.
But if I run client app in any PC in our LAN while loacting at Internet, outside of our LAN.. The server has a valid internet IP address. The client app
always fails to connect to server. Our LAN users access internet via MS ISA
Server, and I have created rules to enable that TCP port for our app in ISA Server.

Should I write some special code for my client app to across firewall to
connect to server?
My app is some like ICQ. We know ICQ users have to set socks5 proxy
parameter to across firewall.So,I think that ICQ must have some code for
socks5 parameter. If yes, would you like give me some samples?

Thank you all.

Post #: 1

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