Date: Fri, 13 Jun 2003 08:51:11 -0700 From: Mark Atkinson <atkin901@yahoo.com> To: freebsd-questions@freebsd.org Subject: Re: arp messages: Why is this happening? Message-ID: <bccrog$u88$1@main.gmane.org> In-Reply-To: <20030613152226.GA91843@ns2.wananchi.com> References: <20030613152226.GA91843@ns2.wananchi.com>
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This is probably a DHCP network? This would happen if a client gets a
new DHCP assigned IP address, instead of it's old one, and before the
freebsd boxes' ARP cache expired for that machine. Usually this only
happens with:
- broken DHCP clients (not requesting it's old ip back upon reboot).
- broken DHCP servers (not maintaining lease state properly to
assign clients their old addresses)
- tight DHCP address spaces (ie. the DHCP server must reuse previously
leased IP addresses to accomodate
new DISCOVERS).
or a combination of the above.
Either that or you have a whole bunch of machines that use gratuitous
ARP to advertise the new interfaces in a failover situation.
ODHIAMBO Washington wrote:
> My log files (and console) fill up with these messages.
>
>
>
>>arp: 62.8.64.172 moved from 00:c0:05:11:01:f1 to 00:c0:05:10:01:f1 on bge1
>>arp: 62.8.64.201 moved from 00:c0:05:10:01:f1 to 00:c0:05:11:01:f1 on bge1
>>arp: 62.8.64.201 moved from 00:c0:05:11:01:f1 to 00:c0:05:10:01:f1 on bge1
>>arp: 62.8.64.145 moved from 00:c0:05:11:01:f1 to 00:c0:05:10:01:f1 on bge1
>>arp: 62.8.64.212 moved from 00:c0:05:11:01:f1 to 00:c0:05:10:01:f1 on bge1
>>arp: 62.8.64.188 moved from 00:c0:05:11:01:f1 to 00:c0:05:10:01:f1 on bge1
>
> ...
>
>
> Googling doesn't seem to give me a good answer as to why.
> This is 4.8-STABLE
>
>
>
>
> -Wash
>
---
Mark
atkin901 at NOSPAM yahoo dot com
(!wired)?(coffee++):(wired);
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