Date: Thu, 17 Jan 2008 16:08:04 +1300 From: Andrew Thompson <thompsa@FreeBSD.org> To: Tom Judge <tom@tomjudge.com> Cc: freebsd-net <freebsd-net@freebsd.org> Subject: Re: if_bridge forwarding incorrectly forwarding ethernet link local addressed packets (e.g. lldp) Message-ID: <20080117030804.GA30931@heff.fud.org.nz> In-Reply-To: <478EBBFD.4090806@tomjudge.com> References: <478EBBFD.4090806@tomjudge.com>
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On Thu, Jan 17, 2008 at 02:22:53AM +0000, Tom Judge wrote: > > Hi, > > As brought up in the thread "Programming interface MAC filter without > enabling PROMISC on an interface from user space." it would seem that > if_bridge does not conform to IEEE 802.1D-2004. Which states: > > <quote> > 7.12.6 Reserved addresses > Frames containing any of the group MAC Addresses specified in Table 7-10 in > their destination address field shall not be relayed by the Bridge. They > are configured in the Permanent Database. Management shall not provide the > capability to modify or remove these entries from the Permanent or the > Filtering Databases. These group MAC Addresses are reserved for assignment > to standard protocols, according to the criteria for such assignments > (Clause 5.5 of ISO/IEC TR 11802-2). > </quote> > > > <table 7-10> > Assignment Value > Bridge Group Address 01-80-C2-00-00-00 > IEEE Std 802.3x Full Duplex PAUSE operation 01-80-C2-00-00-01 > IEEE Std 802.3ad Slow_Protocols_Multicast address 01-80-C2-00-00-02 > IEEE P802.1X PAE address 01-80-C2-00-00-03 > Reserved for future standardization 01-80-C2-00-00-04 > Reserved for future standardization 01-80-C2-00-00-05 > Reserved for future standardization 01-80-C2-00-00-06 > Reserved for future standardization 01-80-C2-00-00-07 > Reserved for future standardization 01-80-C2-00-00-08 > Reserved for future standardization 01-80-C2-00-00-09 > Reserved for future standardization 01-80-C2-00-00-0A > Reserved for future standardization 01-80-C2-00-00-0B > Reserved for future standardization 01-80-C2-00-00-0C > Reserved for future standardization 01-80-C2-00-00-0D > Reserved for future standardization 01-80-C2-00-00-0E > Reserved for future standardization 01-80-C2-00-00-0F > </table 7-10> > > Should I raise a PR about this? Yes please, just paste the same content in. Thanks for investigating this, I will sort out a patch. Andrew
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