[unisog] Recommendation for network taps?

sbernard at gmu.edu sbernard at gmu.edu
Fri Oct 11 20:11:31 GMT 2002


Netoptics' products have worked well for me. Some of the multi-network 
taps can get quite pricey but, they do the job. I use the fiber-optic 
units, I have not tried the copper taps. Given that you're looking to 
do 100Mb I'll venture to guess that their products will work equally 
well as their OC-3 and Gig units.

The couple of times that I've called their support line the people have 
been helpful and friendly. I initially had the problem that the link in 
from our providor is too hot for the replication/distribution 
components in the tap. It bridged the packets just fine, it just wasn't 
able to send signal to the tap ports, i.e. normal network operation was 
fine. So, I could see/tap packets leaving the network, but not coming 
in from the outside. In the past I had experienced similar difficulty 
with the providor's signal strength while using some ATM PCI cards but 
had thought that the problem was isolated to those cards. In both 
cases, swapping through various attenuators produced the optimal signal 

Hope that this helps,

Steve Bernard
Systems Engineer, NET
George Mason University
Fairfax, VA

----- Original Message -----
From: Greg Francis <francis at gonzaga.edu>
Date: Friday, October 11, 2002 2:26 am
Subject: [unisog] Recommendation for network taps?

> I'm looking at connecting our IDS into our network using a tap 
> instead of
> mirroring off the switch like we're currently doing. The 
> connections are
> primarily 100Mbps full-duplex. Do people have any recommendations 
> for a
> brand and model. I'm looking at four tap points right now that are 
> all in
> the same physical location.
> Thanks,
> Greg
> -- 
> Greg Francis
> Sr. System Administrator
> Gonzaga University
> francis at gonzaga.edu
> 509-323-6896

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