[CentOS] so many arp caches why?

MontyRee chulmin2 at hotmail.com
Thu Aug 6 22:52:02 UTC 2009

Thanks for your answer.
> Not another card, another network device - the one with
> 00:23:5E:12:63:FE as it's ethernet MAC address.

There is no another network device as I know.
Can I check by some command except ifconfig or ip?
# ip link show
1: lo:  mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0:  mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:a0:d1:e7:91:cc brd ff:ff:ff:ff:ff:ff
3: eth1:  mtu 1500 qdisc noop qlen 1000
    link/ether 00:a0:d1:e7:91:cd brd ff:ff:ff:ff:ff:ff
4: sit0:  mtu 1480 qdisc noop
    link/sit brd

> Your eth0 MAC address is: 00:A0:D1:E7:91:CC from the ifconfig output you
> posted. Look though the rest of the arp list to find the IP address in
> the 192.168.195.xx range with the 00:23:5E:12:63:FE MAC to see which
> device is sending the arps.

00:23:5E:12:63:FE is a cisco vendor device and gateway mac address.
Is it a bug of the NIC or OS?

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