Date: Sat, 19 Jun 2004 10:31:25 -0400 From: Matt Juszczak <matt@atopia.net> To: freebsd-ipfw@freebsd.org Subject: IPFW questions: mac filtering Message-ID: <40D44E3D.5020805@atopia.net>
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Hello everyone, I originally posted the following message to -questions last night and got a lot of replies: ----------------------------------------- Is there a way to do IP redirection without using layer 3? (IPNAT or routing)? I have a bridge setup and want to redirect any port 80 traffic outgoing through the bridge to a specific server .... but it seems I can only do this with ipfw's forward/fwd or ipnat's rdr commands ... which are all layer 3 oriented and dont work with just a bridge... ----------------------------------------- What I basically wanted to know was whether I could just use a bridge on my FreeBSD box, but still use ipfw or ipnat's forward/rdr options. Looks like the answer is no... seems i actually have to do routing or NAT to get this working ...... So i had another idea, which has sparked another quesiton. Even as a bridge, can ipfw still filter by source mac address (as long as the bridge is on the same subnet, since layer 2 addresses aren't passed very far)......if so, is there a document i can read on how I could filter by mac addresses? Thanks again for everyone's continuing help. And if anyone has any ideas about my quoted question above that I asked to -questions last night, please let me know. For now I'm just assuming its a lost cause. -Matt
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