[K12OSN] weird weird networking problem

[Peter Hartmann]

Hey all,
Our setup with regard to filtering is like this.   I have the default
gateway of the (multiple nic) ltsp box pointing to a separate
squidguard machine.  It happens to be called eth2.   For teachers that
need webmail I point their browsers to a regular squid proxy machine.
This has been working great for about 17 months.  Yesterday I
installed our fancy new Dell Powerconnnect 6024 switch and set up the
link aggregation. I successfully got our eth0, eth1, eth4 eth5 working
as bond0.  Then when I use firefox on a client it doesn't work.  If I
manually point the browser to the squidguard machine, it works.  But I
didn't have to this before and everyone has a profile that doesn't
point there.  I'm really confused because the changes were made on a
different network and eth2 of ltsp , the squidguard machine and the
internet gateway machine are all plugged into the same switch.  Any
thoughts on where my problem is?  I really can't afford to manually
delete everyones current profile and have them get e new one from the
master prefs. Any help would be GREATLY appreciated.

Thanks,
Peter