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Date:	Wed, 12 Dec 2007 17:46:17 +0100
From:	Eric Dumazet <>
To:	Chris Friesen <>
Subject: Re: "ip neigh show" not showing arp cache entries?

Chris Friesen a écrit :
> I retested it on an x86 machine and am seeing similar problems.
> First, "arp" gives the arp table as expected:
> root@...hoon-base-unit0:/tftpboot/cnp/0-0-5-0/0-0-5-0> arp -n
> Address                  HWtype  HWaddress           Flags Mask    Iface
>               ether   00:03:CC:51:06:5E   C    bond0
>             ether   00:0E:0C:5E:95:BD   C    eth6
>             ether   00:C0:8B:08:E4:88   C    bond0
>             ether   00:C0:8B:07:B3:7E   C    bond0
>               ether   00:00:5E:00:01:01   C    eth6
>               ether   00:01:AF:15:E0:6A   C    bond0
>              ether   00:0E:0C:85:FD:D2   C    bond0
>               ether   00:01:AF:14:C8:CC   C    bond0
>             ether   00:01:AF:14:E9:88   C    bond0
>               ether   00:07:E9:41:4B:B4   C    bond0
>            ether   00:01:AF:14:E9:8A   C    bond2
> "ip neigh show" gives nothing, but if I search for specific addresses 
> from the arp table listing they show up:
> root@...hoon-base-unit0:/tftpboot/cnp/0-0-5-0/0-0-5-0> ip neigh show
> root@...hoon-base-unit0:/tftpboot/cnp/0-0-5-0/0-0-5-0> ip neigh show 
> dev bond0 lladdr 00:03:cc:51:06:5e DELAY
> root@...hoon-base-unit0:/tftpboot/cnp/0-0-5-0/0-0-5-0> ip neigh show 
> dev eth6 lladdr 00:0e:0c:5e:95:bd REACHABLE
> root@...hoon-base-unit0:/tftpboot/cnp/0-0-5-0/0-0-5-0> ip neigh show 
> dev bond0 lladdr 00:c0:8b:08:e4:88 REACHABLE
> Is this expected behaviour?
Probably not... Still a 2.6.14 kernel ?

Could you send the result of :

strace ip neigh show

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