On Apr 3, 2009, at 7:11 PM, Anuj Singh wrote:
4 03:23:19 fbsd7 kernel: arp: 10.139.7.15 moved from 00:22:19:ae:ea:0d
to 00:22:19:ae:ea:0f on age0
Apr 4 03:23:19 fbsd7 kernel: arp: 10.139.7.15 moved from
00:22:19:ae:ea:0f to 00:22:19:ae:ea:0d on age0
10.139.7.15 is some windows machine...
Does this Windows machine have two Ethernet cards plugged into the
same network?
It looks like your FreeBSD machine is seeing that IP address switch
between two MAC addresses.
This can be indicative of a network loop between the interfaces on the
machine with that IP address, or a DHCP client fight.
I've also seen this (harmlessly) manifest with certain FreeBSD
firewalls in bridged mode.
-Tom
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