Re: ARP errors

I would have almost certainly said your switch was flaking out. I've had so-so luck with Dell switches...

Is it possible you have a wireless user performing arp spoofing or arp cache poisoning? This could account for the seeming loss of connectivity...

--Tim

----- "Jessica Aguilar" <[email protected]> wrote:

> I have the soekris lan port goes to a dell POE switch port  24 then I
> have 5 AP's connected to port 1 thru 5.   
> 
> Users connect via wireless to LAN . Monowall is the dhcp server. 
> 
> I monitor all devices via snmp and access via web doing port
> forwarding.
> 
> I tried also replacing the switch but it work for a while then start
> happening again.  I use to have a soekris 4801 so I also replace that
> one with the bigger one just in case but still happening.
> 
> 
> Let me know if you need something else,
> 
> Thank you,
> 
> Jessica
> 
> -----Original Message-----
> From: Lee Sharp [mailto:[email protected]] 
> Sent: Wednesday, July 01, 2009 10:49 AM
> To: [email protected]
> Subject: Re: [m0n0wall] ARP errors
> 
> Jessica Aguilar wrote:
> > Hello Support
> > 
> >  
> > 
> > I am experiencing some problems with my infrastructure.   Basically
> for
> > some reason all the devices stop sending traffic.   Let me explain
> my
> > config. I have the soekris then a have a poe switch and then I have
> some
> > AP's.  I am monitoring all of those devices thru SNMPC program.   
> But
> > for some reason  devices stop responding  but I always have access
> to
> > soekris. If I check the ARP table there is nothing in there.
> > 
> >  
> > 
> > I thought it was the equipments so I reboot them no luck.  So I what
> I
> > do is reboot soekris and everything start responding again.   I
> have
> the
> > latest firmware and sokeris net5501 . 
> 
> I need to know some more about your topography.  On the LAN side, you
> 
> have 1 switch, and some APs, only? (And obviously clients, but no
> other 
> switches)  How many APs.  Is the SNMP system on that interface?  How
> is 
> it connected?  How are you connected?
> 
> I have had a few issues like this come up lately.  All were bad
> switches.
> 
> 			Lee
> 
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