On Thu, 2 Jan 2003 11:49:11 -0300
Fernando Schapachnik <[EMAIL PROTECTED]> wrote:
> 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.
>
> 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):
>
> TCPdump on B:
>
> 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
>
> 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
> there is no VRRP or anything else.
>
> Is this a known behavior? Would it be Zebra?
>
> Thanks in advance for any help!
Hi,
I posted a few hours ago in freebsd-questions a problem that seems very
similar to yours ("promiscuous mode / strange ethernet packets duplication
problem"). I too have Zebra running on my machines.
Have you checked that the ethernet interface of your B machine is not
in promiscuous mode for an unknown reason ?
We have several FreeBSD 4.7 boxes that automatically put all their
interfaces into promiscuous mode during the boot process. Does anybody
knows how to prevent that from happening ?
Regards
Yann
--
Yann GROSSEL Email: [EMAIL PROTECTED]
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