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* ARP Bug?
@ 2007-12-15  1:11 Gosney, JeremiX
  2007-12-15  1:32 ` Jan Engelhardt
  2007-12-19 20:51 ` Chuck Ebbert
  0 siblings, 2 replies; 10+ messages in thread
From: Gosney, JeremiX @ 2007-12-15  1:11 UTC (permalink / raw)
  To: linux-kernel; +Cc: Peters, Gordon, Sy, Dely L

We've noticed the 2.6-based Linux systems in our test lab are
experiencing some "ARP flux"-like symptoms.  

The systems reply with eth0's hardware address to all ARP requests,
regardless of the IP being queried.  Because of this, the system will
only send and receive packets on eth0; if eth0 is brought down, the
system is unreachable even though it still has several active
connections.  With eth0 unplugged, none of the other interfaces are
reachable (this is presumably a side-effect caused by the switch ARP
cache.) Failover routes are defined in the routing table, but the system
still will not send/receive packets out those interfaces.

Can anything be done to correct this behaviour?


Jeremi M Gosney
Enterprise Linux Engineer
DIJIC, Intel Corporation
Work: 253-371-4849
Mobile: 253-495-4254


^ permalink raw reply	[flat|nested] 10+ messages in thread
* ARP Bug?
@ 2008-01-30 12:29 Matti Linnanvuori
  2008-01-30 12:31 ` Jan Engelhardt
  0 siblings, 1 reply; 10+ messages in thread
From: Matti Linnanvuori @ 2008-01-30 12:29 UTC (permalink / raw)
  To: linux-kernel

Jan Engelhardt:
> If you have the same subnet on multiple interfaces, only the
> first interface will be served.

Does that comply with the standard?




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^ permalink raw reply	[flat|nested] 10+ messages in thread
* ARP Bug?
@ 2008-01-30 12:44 Matti Linnanvuori
  2008-01-30 13:20 ` Andi Kleen
  2008-01-30 13:23 ` Jan Engelhardt
  0 siblings, 2 replies; 10+ messages in thread
From: Matti Linnanvuori @ 2008-01-30 12:44 UTC (permalink / raw)
  To: jengelh; +Cc: linux-kernel

Jan Engelhardt:

>On Jan 30 2008 04:29, Matti Linnanvuori wrote:
>Jan Engelhardt:
>>> If you have the same subnet on multiple interfaces, only the
>>> first interface will be served.
>>
>>Does that comply with the standard?
>
>What standard?

ARP standard. I think it is RFC 826:
An Ethernet Address Resolution Protocol



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^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2008-01-30 13:28 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-12-15  1:11 ARP Bug? Gosney, JeremiX
2007-12-15  1:32 ` Jan Engelhardt
     [not found]   ` <3A64AD58EE71B34FB333E733C62CDE3C04A83F60@orsmsx414.amr.corp.intel.com>
2007-12-19 18:30     ` Jan Engelhardt
2007-12-19 20:51 ` Chuck Ebbert
2008-01-30 12:29 Matti Linnanvuori
2008-01-30 12:31 ` Jan Engelhardt
2008-01-30 12:44 Matti Linnanvuori
2008-01-30 13:20 ` Andi Kleen
2008-01-30 13:28   ` Jan Engelhardt
2008-01-30 13:23 ` Jan Engelhardt

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