Richard Burdette wrote:
> 
> Hello,
> 
> I'm studying for the Support exam using the CiscoPress books
> and Trouble
> Shooting Campus Networks from Priscilla.  I must say that the
> Trouble
> Shooting book is excellent on its own, but especially so as
> compared to the
> CiscoPress offerings.

Thanks. :-)

> 
> Anyway I've been playing around with NetMonitor 

Are you referring to the NetMonitor application from ModemWizard?

> and also some
> newer Unix
> ported packet capture utilities on various platforms and came
> across
> something on a .Net Enterprise server that has me puzzled. 

So you are running NetMonitor on the .Net server?

> My
> system is
> continually (once a second) broadcasting to a destination port
> of 192.

UDP? Probably since TCP doesn't usually broadcast. That is strange.

>  A
> lookup of ports reveals this is for OSU network monitoring
> (Oregon State U).

Uh, Ohio State. Don't blame us Oregonians. :-)

> Anyway, could anyone shed some light on what application or
> service on the
> server is causing this?  

I have a theory. I wonder if it is NetMonitor itself. It might be looking
for banner ads or gathering data for one of its tests?
Do you see this traffic even when not using NetMonitor? Try Ethereal. It's a
great free protocol analyzer.

> I have always found tracking down an
> application
> causing packet output to be hard to find, does anyone have tips
> on resolving
> this type of scenario?

It's truly a pain. The official list from the Internet Assigned Numbers
Authority just says this, as you probably know:

osu-nms         192/tcp    OSU Network Monitoring System       
osu-nms         192/udp    OSU Network Monitoring System       
#                          Doug Karl 

You could ask Doug?? :-)

Are you sure it's not port 92, instead of port 192? That would make more
sense. Here's what IANA says about 92:

npp              92/tcp    Network Printing Protocol
npp              92/udp    Network Printing Protocol


Or maybe 192 is Hex?? Probably not though. That would be 402, which doesn't
seem any more likely:

genie           402/tcp    Genie Protocol
genie           402/udp    Genie Protocol
#                          Mark Hankin 

Sorry I can't be more help.

Priscilla

> 
> Thanks...
> 
> Richard
> 
> 




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