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From: "Chris Friesen" <cfriesen@nortel.com>
To: "Chris Friesen" <cfriesen@nortel.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: "ip neigh show" not showing arp cache entries?
Date: Mon, 10 Dec 2007 11:54:56 -0600	[thread overview]
Message-ID: <475D7D70.5030502@nortel.com> (raw)
In-Reply-To: <475D7901.1040900@nortel.com>

Chris Friesen wrote:
> 
> I'm seeing some strange behaviour on a 2.6.14 ppc64 system.  If I run 
> "ip neigh show" it prints out nothing, but if I run "arp" then I see the 
> other nodes on the local network.
> 
> 
> root@base0-0-0-5-0-11-1:/root> ip neigh show
> root@base0-0-0-5-0-11-1:/root> arp -n
> Address                  HWtype  HWaddress           Flags Mask    Iface
> 172.24.132.0             ether   00:01:AF:14:E8:DA   C    bond0
> 172.24.132.1                     (incomplete)    bond0
> 172.24.136.0             ether   00:C0:8B:07:B3:7E   C    bond0
> 172.24.132.4             ether   00:01:AF:14:E8:DA   C    bond0
> 172.24.132.2             ether   00:01:AF:14:E8:DA   C    bond0
> 
> 
> Any ideas what's going on here?

I've got some further information.  If I look for a specific address, it 
seems to work:

root@base0-0-0-5-0-11-1:/root> ip neigh show 172.24.136.0
172.24.136.0 dev bond0 lladdr 00:c0:8b:07:b3:7e REACHABLE


In the above scenario, the arp cache lists the device as reachable via 
bond0.  If I search the arp cache to see whether the address is 
reachable from one of bond0's slave devices, should it come back 
positive or negative?

Chris

  reply	other threads:[~2007-12-10 17:55 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-10 17:36 "ip neigh show" not showing arp cache entries? Chris Friesen
2007-12-10 17:54 ` Chris Friesen [this message]
2007-12-12 16:21   ` Chris Friesen
2007-12-12 16:46     ` Eric Dumazet
2007-12-12 18:25       ` Chris Friesen
2007-12-12 18:52         ` Eric Dumazet
2007-12-12 21:57           ` Chris Friesen
2007-12-12 22:06             ` YOSHIFUJI Hideaki / 吉藤英明
2007-12-17 15:32               ` Chris Friesen
2007-12-17 18:02                 ` Patrick McHardy
2007-12-17 19:47                   ` Chris Friesen
2007-12-17 23:51                     ` Patrick McHardy
2007-12-18  0:33                       ` Thomas Graf
2007-12-18  0:35                         ` Patrick McHardy
2007-12-18  3:33                 ` Herbert Xu
2007-12-18 14:52                   ` Chris Friesen
2007-12-19  1:14                     ` Herbert Xu
2007-12-19 14:28                       ` Chris Friesen
2007-12-19 14:28                         ` Chris Friesen
2007-12-25  1:06                         ` Herbert Xu

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