Stop this from clogging DMESG

W. J. Williams will at willardjwilliams.com
Wed Apr 2 08:55:04 PST 2003


--- Dan Nelson <dnelson at allantgroup.com> wrote:
> In the last episode (Apr 02), W. J. Williams said:
> > --- Dan Nelson <dnelson at allantgroup.com> wrote:
> > > In the last episode (Apr 02), W. J. Williams said:
> > > > arp: 192.168.0.2 is on lo0 but got reply from 00:d0:b7:b7:66:eb on
> fxp1
> > > > 
> > > > Hi, how do I stop this line from appearing 50,000,000 times per
> day
> > > > in my DMESG output.  I am sure it has something to do with the two
> > > > nics I am running on this box.
> > > > 
> > > > fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > > >         inet 192.168.0.2 netmask 0xfffff800 broadcast
> 192.168.7.255
> > > > fxp1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > > >         inet 192.168.1.1 netmask 0xffffff00 broadcast
> 192.168.1.255
> > > 
> > > You have overlapping networks, for one.  
> > > 
> > > fxp0's network range is 192.168.0.0 -> 192.168.7.255
> > > fxp1's network range is 192.168.1.0 -> 192.168.1.255
> > > 
> > > The 192.168.1/24 subnet is accessible to both cards, so the fxp1
> > > interface is redundant.  Try removing the card completely.
> > 
> > *********************************************
> > 
> > this box is in a lab-learning environment...how do I stop and keep
> both
> > cards...should I make range for fxp1 192.168.8.x?
> 
> That's probably a good idea.  Also make sure the NICs are not plugged
> into the same ethernet segment, since if they are they will see the
> same broadcast packets and start complaining about other things.  Use
> IP aliases on a single card if you only have one ethernet segment
> available.

************************************************
Dan, thx...yes, I only have one ethernet switch, but i believe it is
capable of handling virtual LANs...should I build VLANS on the switch to
separate the ethernet segments?  I am running 8 pcs and simulating various
things (VPNS, firewalls, etc) .It is a 24-port 3com 3300 switch.  I just
got my gig-e nic running now as well, so will experiment with routing
traffic through it. thoughts?

=====
Will Williams


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