Date: Tue, 6 Nov 2001 00:36:19 +0000 From: Scott Mitchell <scott.mitchell@mail.com> To: "Jose M. Alcaide" <jose@we.lc.ehu.es> Cc: mobile@FreeBSD.ORG Subject: Re: Xircom CE3-10/100 (xe(4)) cannot receive multicast frames Message-ID: <20011106003619.A1861@localhost> In-Reply-To: <20011105185451.A392@v-ger.we.lc.ehu.es>; from jose@we.lc.ehu.es on Mon, Nov 05, 2001 at 06:54:51PM %2B0100 References: <20011105185451.A392@v-ger.we.lc.ehu.es>
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On Mon, Nov 05, 2001 at 06:54:51PM +0100, Jose M. Alcaide wrote: > I have just started to play with IPv6, and after trying to autoconfigure > the laptop's xe0 interface without any success, I found that the ICMPv6 > route advertisements (which travel encapsulated into multicast Ethernet > frames, with dst address 33:33:0:0:0:1) were not being received by the > interface. However, a "netstat -a" shows clearly that multicast address: > > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll > xe0 1500 <Link#2> 00:10:a4:e8:6f:b6 3199 0 24 8 0 > 33:33:e6:ef:ce:85 > 33:33:0:0:0:1 > 33:33:ff:e8:6f:b6 > 1:0:5e:0:0:1 > > The xe card, however, sends multicast ethernet frames without any problem. > > Then, I used another PCMCIA ethernet card (a NE2000 clone) and everything > worked fine. Obviously something is seriously broken in the xe(4) driver > or in the xe hardware. BTW, the card is a Xircom RealPort 100 (equivalent > to the CE3-10/100). Something is seriously broken in the xe(4) driver. I don't think multicast receive has ever worked properly -- if you grovel around in the if_xe.c code you'll find some stuff to set up the multicast address filters that is never actually used :-( It's been on my list of things to fix for ages, but no-one complained until now. I'll look into it as soon as I can, which might not be for a few weeks (sorry). In the meantime, could you try putting the card in promiscuous mode and see if it receives the offending frames then? > Some xe(4) guru out there? Probably me, although I think 'guru' may be undeserved :-) Scott -- =========================================================================== Scott Mitchell | PGP Key ID | "Eagles may soar, but weasels Cambridge, England | 0x54B171B9 | don't get sucked into jet engines" scott.mitchell@mail.com | 0xAA775B8B | -- Anon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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