ARP packets

[Bret Stern]

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