Socket & NAT

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Hello!
I have a PC with two netowrk cards (NIC) connected in two diferents sub net, how can i forward the paquets using winsock?

with best regards,
Vunza.

Posted 21-Mar-10 6:54am

vunza

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Emilio Garavaglia · Answer 1 · 2010-03-23T04:57:00

Packet forwarding may happen at layer 2 (or "bridging"), 3 (or "routing") or 4 (NAT) or above, by proxying an application protocol.

Bridging and Routing are networking functionalities that are part of the OS (either as TCP/IP cpnfiguration: look for IP-Forwarding or a NIC configuration - look for "bridging").

Note that IP forwarding enabled is necessary for routing, but it is not enough: nodes on the sides of the "router" must be aware of its existence, may be through a routing protocol, or may be via static configuration (look for the "route add" command).

chevu · Answer 2 · 2010-03-22T19:23:00

well I dont get your question properly.. but I am doing packet fwding in diff subnet on same system using simply bridging. jst try to bridge both nic cards and then try original code you have... it should work..
you can use this link for bridging..
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/hnw_bridge_install.mspx?mfr=true[^]

Socket & NAT

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