[Snort-users] Tap -> Hub Problem.

larosa, vjay larosa_vjay at ...3331...
Mon May 6 14:04:03 EDT 2002


Hi Chris,

The tap is in line with an autnegotiating link. I figured since the data was
only
being transmitted to the hub that a 100 MB half duplex hub would be O.Kay.

I also tried setting the cisco switch to auto/auto and still go the same
error rate.

I don't own the link and they won't force to 100MB Full so I am not sure
what else to try. Any other ideas?

vjl 

-----Original Message-----
From: Chris Green [mailto:cmg at ...1935...]
Sent: Monday, May 06, 2002 4:52 PM
To: larosa, vjay
Cc: 'snort-users at lists.sourceforge.net'
Subject: Re: [Snort-users] Tap -> Hub Problem.


"larosa, vjay" <larosa_vjay at ...3331...> writes:

> Hello,
>
> I need to ask for some advice. I have a situation where there is a century
> tap installed that splits my  link in to
> two pieces. Send and Recieve. When I plug these two connections in to any
> sort of hub, or switch with port mirroring
> (Tried a NetGear DS108 and a Cisco 3500) I get approximately a %50 error
> rate according to my network analyzer.
> When I run either or connection alone, I do not get any errors. Does
anyone
> have any idea why this might be
> happening? Thanks!

Full Duplex ethernet going into a half duplex hole.

You'll have to bump your switch down to 100half duplex.
-- 
Chris Green <cmg at ...1935...>
This is my signature. There are many like it but this one is mine.




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