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I want to write a vedio program,but u know,the vedio stream will be blocked by many firewalls,so i need a NAT(network address transfer)program to transfer the address outside to the internal address accepted by our company's firewall .
You sure you havent mixed this us with NAT (Network Address Traslation) used by firewalls to map internal (black addresses) to external "real" addresses? (page on NAT: http://www.hasenstein.com/linux-ip-nat/diplom/) if you do mean the type of NAT Im talking about you find all code you need in the linux kernel srouce: /usr/src/linux/net/ipv4/netfilter/ip_nat*
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