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Subject: Re: Routing and Zebra
From: "Vladimir B. " Grebenschikov <vova@express.ru>
To: Fernando Schapachnik <fernando@mecon.gov.ar>
Cc: freebsd-net@freebsd.org
In-Reply-To: <20030102144911.GG250@bal740r0.mecon.gov.ar>
References: <20030102144911.GG250@bal740r0.mecon.gov.ar>
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=F7 Thu, 02.01.2003, =D7 17:49, Fernando Schapachnik =CE=C1=D0=C9=D3=C1=CC:
> Hi,
> 	First of all, forgive me if my question is off-topic. I could have
> tried -questions but was afraid that is was kind of very specific.
>=20
> 	To the point: Two machines running 4.7, A and B, connected to the same
> switch. Both running zebra. When A is turned off, B receives A's traffic
> (which is normal as the switch needs to flood packets after a while):
>=20
> TCPdump on B:
>=20
> Source MAC: a router's MAC (on the same LAN)
> Dest. MAC: A's MAC
> Source IP: someplace in the net
> Dest. IP: A's IP
>=20
> 	To my surprise B tries to forwards the packet to A, which AFAIK
> shouldn't because it doesn't have the right destination MAC. Of course th=
ere is
> no VRRP or anything else.
>=20
> 	Is this a known behavior? Would it be Zebra?
>=20
> 	Thanks in advance for any help!

There was bug in zebra, it allows promosq. mode on interface
so host begin catch all traffic as its own.=20
(You can check this by ifconfig)


This was fixed 2002/10/07.

> Fernando.
>=20
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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--=20
Vladimir B. Grebenschikov <vova@express.ru>
TSB "Russian Express"

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