Date: Sat, 23 Sep 2000 15:49:46 -0700 From: "Louis Valentine" <bwolf@u.washington.edu> To: <freebsd-questions@FreeBSD.ORG> Subject: Routing UDP Packets...? Message-ID: <000a01c025b0$92716270$382bd080@louisv>
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[-- Attachment #1 --] Hey, I'm trying to setup my FreeBSD box with 4.1-RELEASE to act as a UDP router. I only have one interface, my ethernet card, and what I want to do is listen for UDP packets on a port, say 20000, and redirect these packets to some destination, say my.host.com:20000. So far I have: 1. Recompiled the kernel with the IPFIREWALL and IPDIVERT options. 2. Set firewall_enable=YES, firewall_type=OPEN, gateway_enable=YES, natd_enable=YES, natd_interface=de0 in rc.conf. 3. Added natd to /etc/services. 3. Started natd with "-redirect_port udp my.host.com:20000 20000 -n de0". I have then tried sending a UDP packet to the machine at that port, but it doesn't seem to be listening properly. I tried running natd with the -verbose option to debug it, but it never shows any output. Please help! -Louis Valentine [-- Attachment #2 --] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 5.50.4207.2601" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2> Hey, I'm trying to setup my FreeBSD box with 4.1-RELEASE to act as a UDP router. I only have one interface, my ethernet card, and what I want to do is listen for UDP packets on a port, say 20000, and redirect these packets to some destination, say my.host.com:20000. So far I have:</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>1. Recompiled the kernel with the IPFIREWALL and IPDIVERT options.</FONT></DIV> <DIV><FONT face=Arial size=2>2. Set firewall_enable=YES, firewall_type=OPEN, gateway_enable=YES, natd_enable=YES, natd_interface=de0 in rc.conf.</FONT></DIV> <DIV><FONT face=Arial size=2>3. Added natd to /etc/services.</FONT></DIV> <DIV><FONT face=Arial size=2>3. Started natd with "-redirect_port udp my.host.com:20000 20000 -n de0".</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2> I have then tried sending a UDP packet to the machine at that port, but it doesn't seem to be listening properly. I tried running natd with the -verbose option to debug it, but it never shows any output. Please help!</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>-Louis Valentine</FONT></DIV></BODY></HTML>
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