Date: Fri, 14 Nov 2014 17:13:47 +0100 From: Egoitz Aurrekoetxea <egoitz@ramattack.net> To: freebsd-ipfw@freebsd.org Subject: Questions about ipfw Message-ID: <B56977EE-04D3-4B54-841E-2FAF1E840BED@ramattack.net>
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Good afternoon, I wanted to formulate a couple of questions I=E2=80=99m doing my self = some time ago.=20 1 - With Linux, Iptables and mod_conntrack_ftp you can allow only = connecting to unprivileged port ranges for=20 ftp passive mode to ip addresses who have properly established a tcp/21 = port connection. Is this possible in=20 FreeBSD with ipfw?. 2.- I am a client A connecting to public ip 1.1.1.1 (for example) of = host B. I want this packets at B to be redirected to host C but changing the source address of A from that packets with the ip = address of B. Later when B receives back the answer of C that packets from the answer to be redirected to A changing B = destination ip address to A destination ip address. So when telnetting from client A to host B for example to port 5000, really, to be = telnetting host C port 5000 for example and work this telnet properly = from A. The most important question is number two. Could you help me please?. Best regards.=
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