Re: snort and tap ethernet

["AJ Butcher, Information Systems and Computing" <Alex.Butcher () bristol ac uk>]

--On 30 March 2004 09:32 +0200 Alessandro Fiorenzi 
<a.fiorenzi () infogroup it> wrote:

> I was thinking to snort and taps when I have had a question.
>
> is better mirroring one port with 3com or cisco mirroring feature,
> having the two send and recive signals toghether, or is better to have
> passive tap ethernet with one port for send and one for recive signal?

It is not unknown for port spanning/mirroring to cause the performance of a 
switch to deteriorate noticeably. Also, depending on the switch in 
question, I gather it may not show you all the traffic (i.e. VLAN stuff).

> Which are the best taps?

<http://www.finisar.com/nt/taps.php> would be my first port of call 
(formerly known as Shomiti).

> Thanks in advance
> A.Fiorenzi

Best Regards,
Alex.
--
Alex Butcher: Security & Integrity, Personal Computer Systems Group
Information Systems and Computing             GPG Key ID: F9B27DC9
GPG Fingerprint: D62A DD83 A0B8 D174 49C4 2849 832D 6C72 F9B2 7DC9




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