Date: Sun, 16 Nov 2008 20:36:28 -0800 From: "Jin Guojun[VFF]" <jguojun@gmail.com> To: Ian Smith <smithi@nimnet.asn.au> Cc: Erik Trulsson <ertr1013@student.uu.se>, ipfw@freebsd.org, questions@freebsd.org Subject: Re: some ipfw filter does not function under Release 6.3 Message-ID: <4920F4CC.2020501@gmail.com> In-Reply-To: <20081117134532.S70117@sola.nimnet.asn.au> References: <491F413A.4020108@gmail.com> <20081115223556.GA45503@owl.midgard.homeip.net> <491F54A0.9090702@gmail.com> <491F6466.40309@gmail.com> <20081116224655.J70117@sola.nimnet.asn.au> <4920C685.1050004@gmail.com> <20081117134532.S70117@sola.nimnet.asn.au>
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Ian Smith wrote: >On Sun, 16 Nov 2008, Jin Guojun[VFF] wrote: > > Ian Smith wrote: > > > > > On Sat, 15 Nov 2008, Jin Guojun[VFF] wrote: > > > > > > > I think this is a bug in ipfw because after change the rule order, the > > > > problem persists: > > > > 00566 26 3090 deny ip from 221.192.199.36 to any > > > > 65330 2018 983473 allow tcp from any to any established > > > > 65535 0 0 deny ip from any to any > > > >.... snapped > > > I have found the problem due to the NIC naming change after motherboard > > upgrading. > > The em0 was LAN port, but now it is WAN port. So, the following rule caused > > Sync coming in: > > > > 00123 12 528 allow tcp from any to 192.168.0.0/16 via em0 setup > >Ahah! > > > This is my configuration fault, and we can close PR kern/128902. > > > > Thanks, > > -Jin > >Glad you found it so soon, Jin; that was one very short-lived PR :) > > This is kind hard one to catch since this machine was tested and working before. Traced many machines with R-6.1 and R-6.2 around country and found no problem. The recent change to this machine is a AMD to a P4 motherboard swapping for better memory bandwidth, but overlooked the NIC names changed. Now we had historical information for what could cause such failure. -Jin
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