ARP packets

Bret Stern bret_stern at machinemanagement.com
Tue Oct 5 16:48:23 UTC 2010


A Remote Management card was responsible for this. After I removed it,
the ARP requests stopped. it's always something!
I've downloaded the software for it, and have a new toy to play with.




On Fri, 2010-09-24 at 15:01 -0800, Bret Stern wrote:
> Mostly I was curious about the specific IP number
> 63.209.4.211, and why/how it is interested in that specific
> Level3 hosted IP number.
> There are no boot configurations for the dual onboard NICs
> on this SuperMicro server, so it must be something in
> Fedora that is querying for this IP.
> 
> I'll check the network config files and see what I can find
> out. B
> 
> 
> 
> 
> 
> ----- Original Message -----
> On 10:59 AM 09/24/2010 redhat at billoblog.com wrote:
> > 
> > Just out of curiosity, would this happen if you changed MAC addresses on
> > your box and the arp cache had the old MAC address?  I run a script that
> > changes my MAC address on every boot up and every six hours when up, for
> > instance.
> > 
> > 
> > billo
> > 
> > On Thu, 23 Sep 2010, Rick Stevens wrote:
> > 
> > > On 09/23/2010 04:14 PM, Bret Stern wrote:
> > >> Ladies and gentlemen,
> > >> 
> > >> 
> > >> Playing with Wireshark and seeing
> > >>   "Gratuitous ARP for 63.209.4.211 (Request)"
> > >> coming from my Fedora 12 ftp server.
> > >> 
> > >> The ip address is a bit of a mystery since this is a fresh install,
> > and
> > >> I couldn't find any nic card setup in the bios which could contain
> > this
> > >> number. Must be in the server somewhere.
> > >> 
> > >> Who's gonna solve this one? Where can I look?
> > >
> > > There are a couple possibilities.  If a machine has two NICs on the
> > > same IP you'll get that message.  The offender could be another
> > physical NIC 
> > > or an alias of another NIC (e.g. "eth0:0").
> > >
> > > Another possibility is that you have a bond running (two NICs set up
> > as
> > > either a failover pair or an aggregate).  If the system fails over
> > from
> > > one NIC to the other one (or if it switches when load sharing), an ARP
> > 
> > > may be sent--depending on the bond type.
> > >
> > > ----------------------------------------------------------------------
> > 
> > > - Rick Stevens, Systems Engineer, C2 Hosting	  ricks at nerd.com -
> > 
> > > - AIM/Skype: therps2	ICQ: 22643734		 Yahoo: origrps2 -
> > 
> > > -									 -
> > 
> > > -	   "Microsoft is a cross between The Borg and the Ferengi.	 -
> > 
> > > -  Unfortunately they use Borg to do their marketing and Ferengi to  -
> > 
> > > -		    do their programming."  -- Simon Slavin		 -
> > 
> > > ----------------------------------------------------------------------
> > 
> > >
> > > _______________________________________________
> > > Redhat-install-list mailing list
> > > Redhat-install-list at redhat.com
> > > https://www.redhat.com/mailman/listinfo/redhat-install-list
> > > To Unsubscribe Go To ABOVE URL or send a message to:
> > > redhat-install-list-request at redhat.com
> > > Subject: unsubscribe
> > >
> > 
> > _______________________________________________
> > Redhat-install-list mailing list
> > Redhat-install-list at redhat.com
> > https://www.redhat.com/mailman/listinfo/redhat-install-list
> > To Unsubscribe Go To ABOVE URL or send a message to:
> > redhat-install-list-request at redhat.com
> > Subject: unsubscribe
> 





More information about the Redhat-install-list mailing list