Date: Fri, 4 Oct 2002 17:06:44 +0300 From: Maxim Sobolev <sobomax@FreeBSD.ORG> To: "Vladimir B. Grebenschikov" <vova@sw.ru> Cc: sumikawa@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: zebra interface flags problem on 4.7-RC2 (IFF_PROMISC) Message-ID: <20021004140644.GB61661@vega.vega.com> In-Reply-To: <1033739506.1060.16.camel@vbook.express.ru> References: <1033739506.1060.16.camel@vbook.express.ru>
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On Fri, Oct 04, 2002 at 05:51:46PM +0400, Vladimir B. Grebenschikov wrote: > > Hi > > I have tried to install fresh zebra (from ports) on 4.7-RC2 > > have a problem - zebra turns on promiscuity mode on interface, > it is completely unacceptable when interface connected to HUB (not > switch) - router begins resend all packets. > > # ifconfig fxp1 > fxp1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet 193.125.143.129 netmask 0xffffff00 broadcast > 193.125.143.255 > ether 00:a0:c9:41:a3:a3 > media: Ethernet autoselect (10baseT/UTP) > status: active > # zebra -d > 2002/10/04 16:33:42 ZEBRA: can't get ip6forwarding value > # ifconfig fxp1 > fxp1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu > 1500 > inet 193.125.143.129 netmask 0xffffff00 broadcast > 193.125.143.255 > ether 00:a0:c9:41:a3:a3 > media: Ethernet autoselect (10baseT/UTP) > status: active > > > Nothing special in zebra config, just installed 4.7-RC2, just upgraded > zebra. > > I am not sure is it Zebra-related or FreeBSD-related problem > digging into zebra code do not show any abnormal interface flags > installed. This is probably a bug in zebra - I guess that it's doesn't clear 'struct ifreq' properly before SIOCSIFFLAGS ioctl(2). -Maxim > > May be problem related to following commit: > > date: 2002/08/30 14:23:38; author: sobomax; state: Exp; lines: +25 -4 > MFC: user-setable promisc mode. The code is slightly diffrent (and > uglier) > than in HEAD, because we have had to preserve kernel ABI, so that > increasing > if_flags to 32 bits was not an option. > > > -- > Vladimir B. Grebenschikov > vova@sw.ru, SWsoft, Inc. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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