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SubjectRe: "ip neigh show" not showing arp cache entries?
YOSHIFUJI Hideaki / 吉藤英明 wrote:
> In article <47605934.2060604@nortel.com> (at Wed, 12 Dec 2007
> 15:57:08 -0600), "Chris Friesen" <cfriesen@nortel.com> says:

>>> You may try other versions of this command
>>>
>>> http://devresources.linux-foundation.org/dev/iproute2/download/
>>
>> They appear to be numbered by kernel version, and the above version
>> is the most recent one for 2.6.14. Will more recent ones (for
>> newer kernels) work with my kernel?

> It should work; if it doesn't, please make a report. Thanks.

I downloaded iproute2-2.6.23 and built it for my kernel.

I'm compiling for a different kernel than is actually running on the
build system, so I had to add a line defining KERNEL_INCLUDE to the
Makefile, and I had to add "-I${KERNEL_INCLUDE}" to the CFLAGS
definition. Someone might want to do something about that...

Anyways, the arp entry issue is still there. The "arp" command gives a
bunch of entries:

root@typhoon-base-unit0:/root> arp -n
Address HWtype HWaddress Flags Mask Iface
192.168.24.81 ether 00:01:AF:14:E9:8A C bond2
172.24.132.2 (incomplete) bond0
172.24.136.0 ether 00:C0:8B:07:B3:7E C bond0
172.24.137.0 (incomplete) bond0
172.24.0.9 ether 00:07:E9:41:4B:B4 C bond0
10.41.18.101 ether 00:0E:0C:5E:95:BD C eth6
172.24.0.11 ether 00:03:CC:51:06:5E C bond0
172.24.132.1 ether 00:01:AF:14:E9:88 C bond0
172.24.0.15 ether 00:0E:0C:85:FD:D2 C bond0
172.24.0.3 ether 00:01:AF:14:C8:CC C bond0
172.24.0.5 ether 00:01:AF:15:E0:6A C bond0

The original "ip" command and the new one ("/tmp/ip") both give the same
results--some of the entries are missing.

root@typhoon-base-unit0:/root> ip neigh show all
172.24.137.0 dev bond0 FAILED
172.24.0.9 dev bond0 lladdr 00:07:e9:41:4b:b4 REACHABLE
10.41.18.101 dev eth6 lladdr 00:0e:0c:5e:95:bd REACHABLE
172.24.0.11 dev bond0 lladdr 00:03:cc:51:06:5e STALE
172.24.132.1 dev bond0 lladdr 00:01:af:14:e9:88 REACHABLE
172.24.0.15 dev bond0 lladdr 00:0e:0c:85:fd:d2 STALE
172.24.0.3 dev bond0 lladdr 00:01:af:14:c8:cc REACHABLE
172.24.0.5 dev bond0 lladdr 00:01:af:15:e0:6a STALE

root@typhoon-base-unit0:/root> /tmp/ip neigh show all
172.24.137.0 dev bond0 FAILED
172.24.0.9 dev bond0 lladdr 00:07:e9:41:4b:b4 REACHABLE
10.41.18.101 dev eth6 lladdr 00:0e:0c:5e:95:bd REACHABLE
172.24.0.11 dev bond0 lladdr 00:03:cc:51:06:5e STALE
172.24.132.1 dev bond0 lladdr 00:01:af:14:e9:88 REACHABLE
172.24.0.15 dev bond0 lladdr 00:0e:0c:85:fd:d2 STALE
172.24.0.3 dev bond0 lladdr 00:01:af:14:c8:cc REACHABLE
172.24.0.5 dev bond0 lladdr 00:01:af:15:e0:6a STALE


However, if I specifically try to print out one of the missing entries,
it shows up:

root@typhoon-base-unit0:/root> /tmp/ip neigh show 192.168.24.81
192.168.24.81 dev bond2 lladdr 00:01:af:14:e9:8a REACHABLE


Chris
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