* bug in arp handling 2.6.20
@ 2007-09-07 0:41 Joseph Southwell
2007-09-07 1:16 ` Rick Jones
0 siblings, 1 reply; 2+ messages in thread
From: Joseph Southwell @ 2007-09-07 0:41 UTC (permalink / raw)
To: netdev
scenario
Machine A
eth0 is plugged into network.
192.168.1.201
eth0:1
192.168.1.2
Machine B
eth1 is plugged into network.
192.168.1.101
eth0 is not plugged into network. so I can test locally before
switching the wire.
192.168.1.201
eth0:1
192.168.1.2
arp request for 192.168.1.2 is responded to by eth1 on machine B.
That seems buggy to me. worse, it continues to do it after
unconfiguring eth0:1 and eth0.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: bug in arp handling 2.6.20
2007-09-07 0:41 bug in arp handling 2.6.20 Joseph Southwell
@ 2007-09-07 1:16 ` Rick Jones
0 siblings, 0 replies; 2+ messages in thread
From: Rick Jones @ 2007-09-07 1:16 UTC (permalink / raw)
To: Joseph Southwell; +Cc: netdev
Joseph Southwell wrote:
> scenario
> Machine A
> eth0 is plugged into network.
> 192.168.1.201
> eth0:1
> 192.168.1.2
>
>
> Machine B
> eth1 is plugged into network.
> 192.168.1.101
> eth0 is not plugged into network. so I can test locally before
> switching the wire.
> 192.168.1.201
> eth0:1
> 192.168.1.2
>
> arp request for 192.168.1.2 is responded to by eth1 on machine B. That
> seems buggy to me.
Does it still do so if you set either "arp_ignore" or "arp_filter" (I
can never keep those two straight)? Could be the "weak-end-system"
design of the stack at work here. That allows any interface in the
system to respond to an ARP request for any of the IP's assigned to any
of the interfaces.
> worse, it continues to do it after unconfiguring
> eth0:1 and eth0.
As in simply marking it "down?"
rick jones
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2007-09-07 1:17 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-09-07 0:41 bug in arp handling 2.6.20 Joseph Southwell
2007-09-07 1:16 ` Rick Jones
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).