Re: Cisco FWSM failover secondary power failure - message 405001

[greg padden <paddeng () biostat wisc edu>]

The message Received ARP request collision from is a red herring.   What 
it means is that the FWSM saw that the same MAC address responded to 
multiple ARP replies.  This is normal when you have a host that has 
multiple IP addresses on the same ethernet card.

I spent several hours looking at this to a FWSM problem.

Good luck.
BT wrote:

> Hello,
>
> we have installed two 6513 Cisco Core switch with every switch one FWSM
> in a LAN based failover configuration. The first days the system worked
> fine but now there seems to be a power problem with the secondary. It
> rebooted multiple times without a transparent reason.
> During the reboots we saw also a traffic interuption of about 10
> minutes, even though the first system seems to work fine. The secondary
> FWSM will be exchanged the next days, but now we are searching the
> reason for the interuptions. The interuptions happened multiple times on
> one evening. In the log file we see every time the secondary boots this
> message:
>
> Feb  8 21:06:08 w.x.y.z Feb 08 2006 21:06:08 FWSM-1 :
>  
>
> > %FWSM-4-405001: Received ARP request collision from
> > w.x.y.z/0013.c429.ab54 on interface inside
> >    
>
> In older logfiles we don't see this message.
>
> Does anyone know, if this is normal, that this message is send when the
> secondary is rebooting? Can it be, that the defective secondary modul
> sends packets (e.g. doubled IP-addresses), which disturb the MAC tables
> of the switch, so that this interrupts the traffic?
>
> Someone who has seen this before? Thanks for every hint ...
> Regards,
> Bernhard
>
> John Madden wrote:
>  
>
> > Hi,
> >
> > Is there a way to NOT permit users from the inside to
> > connect to a proxy server on the outside and bypassing
> > the Web filtering software ?
> >
> > Thank you
> >
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