G5 kernel problem, Ram OK

Question

My G5(Dual 2Ghz PPC, OS 10.5.8) does not appear to have outright kernel "panic" based on what I see looking at the console log entries.  ONce in the last day it appeared to "panic" but I found no evidence on the log.   The only key thing about it was the fans revved to full output and I had no keyboard or mouse controls.  I was forced to shutdown with the power button.   I keep getting THIS error when the fans rev for a bit(today)
Mar 11 14:41:19 G5  kernel[0]: {       41   810400} UniNEnet::restartReceiver
   . . .  but they just increase in speed a bit for a few seconds and go back to normal.
also, it almost continously pumps out THIS message:
Mar 11 14:40:31 G5-basement mDNSResponder[18]: ERROR: getOptRdata - unknown opt 65002
Mar 11 14:40:31 G5-basement mDNSResponder[18]: ERROR: getOptRdata - unknown opt 4
   . . .  every few seconds.
Would anyone know the function of MDNSResponder or the kernel entry above?  POssibly, might be enough to point in some direction.
I have already eliminated unneccessary startup items.
thanks!

Answer 1

Hello BD. . . OK, new things I've learned:
-- I have had both the wired & wireless mice connected in the past.  I figured there may be a "problem" with that and so, disconnected the wired cheese eater.  Even though it makes things easier when the wireless feller fails to connect after being dormant.  I found that NO problems occur with coming out of sleep for four days.  I have also left the wireless guy "hot"-- normally I turn his belly switch off when done with the computer for a while.  The G5 has been coming out of sleep just fine and no raging fan runs.
-- maybe this solves the problem, just get used to plugging in the wired mouse if I loose connection. . .
-- Regarding your input: well, not sure about the name.  I checked and it showed its normal name in the dialog box but without the .local extension, so I pressed Edit and up popped the .local in gray and I left it that way.
-- as to a new location, not sure why or what the purpose is you are aiming at but I did as you suggested and the following images show present state of network.   Don't forget I signed up for OPEN DNS since we started the conversation. . .
Let me know more background on why the location change and whether to leave it as is please.  thanks!