Snort mailing list archives

Re: Tap and Hub


From: "Lee Clemens" <snort () leeclemens net>
Date: Wed, 24 Mar 2010 18:17:43 -0400

Just wanted to point out that some taps do allow traffic to be injected:

http://www.netoptics.com/products/product_family_details.asp?cid=4&pid=115

-----Original Message-----
From: Eoin Miller [mailto:eoin.miller () trojanedbinaries com] 
Sent: Wednesday, March 24, 2010 2:08 PM

On 3/24/2010 4:12 PM, akos.daniel () db-soft hu wrote:
Hi,

What is the difference between a network hub and a network tap?
Maybe a stupid question, but is there a "gigabit hub" on the market or for
gigabit should I look for a tap?
(span port is not possible in my case...)
Thanks for the info.

Akos

   
Hub can't do full duplex, so it may hurt your network speed to put it in 
the loop. Plus, a device can't inject traffic into a tap like it can 
with a hub. Tap > SPAN > hub.

-- Eoin

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------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
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