Date: Fri, 2 Nov 2001 11:39:15 -0800 (PST) From: Ken Bolingbroke <hacker@bolingbroke.com> To: Doug Lee <dgl@visi.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Can I route TCP/UDP traffic by destination port? Message-ID: <Pine.BSF.4.21.0111021110270.2063-100000@fremont.bolingbroke.com> In-Reply-To: <20011102133940.K9714@kirk.sector14.net>
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On Fri, 2 Nov 2001, Doug Lee wrote: > Can I possibly tell my FreeBSD box to send TCP/UDP traffic bound for > ports 137-139 via a different route than all other traffic, and can I > route responses back similarly (the other end of the VPN is also a > FreeBSD box)? It would be really nice if I could do this without > using the VPN as a pathway, but I think I could handle it either way. The 'fwd' function of ipfw would probably work for this. Ie; if the gateway for your alternate route is at 10.1.2.3, you might do something like this: fwd 10.1.2.3 tcp from any to any 137-139 fwd 10.1.2.3 udp from any to any 137-139 The 'from any to any' will likely be too liberal for your needs. Adjust it for your local network such that it forwards all traffic to ports 137-139 at only external hosts with this rule. Ken Bolingbroke hacker@bolingbroke.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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