[conspire] corrected to HP LaserJet4M Plus Re: HP LaserJet4 - CUPS lists printer twice

Rick Moen rick at linuxmafia.com
Sat Aug 29 23:03:16 PDT 2009

Quoting Ruben Safir (ruben at mrbrklyn.com):

> I have all these old switches around and they are set to do no
> firewalling and to allow all traffic, including broadcast.  What is
> weird is that every once in a while, usually at an installfest, one of
> them goes haywire and suddenly decides to block port 80 or some other
> such stupidity.  I pull it out and throw another Synoptics spare in
> and all is fine...and then a few months later if I put the old one
> back, it works fine.  I should just replace them all with hubs.  I
> hate switching.  JUST ROUTE and PASS THE PACKETS and get out of my
> way..

Um... if your switches are _routing_, then that's the first thing you'll
need to fix.  ;->

(There are switches that include layer 3 functions and thus perform some
routing, but the ones you'll find in home LANs are link-layer, layer 2,
and just pass ethernet frames around on the basis of their MAC
addresses, without paying any attention to IP information.  A switch
_qua_ switch operates on ethernet frames, not IP packets.)

More information about the conspire mailing list