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On Thu, Jun 12, 2003 at 06:19:02PM -0500, Keith G. Murphy wrote:
> Mmmm, what if I have two machines that are on the same LAN segment,
> having a conversation of interest, but I want to run my sniffer from,
> say, a Linux server on the same segment? (Router shouldn't even come
> into play in a situation like that).
Sniffers will always work for the collision domain you're on. So long
as there isn't a bridge, switch or router in between you and what you
want to sniff, you'll be able to see it.
> Don't get me wrong: I agree with your larger point. In almost every
> situation, I'd probably take a switch over a hub as
> well. At the prices of even a few years ago, things were different.
I bought my switch three years ago for about $20. It's a Netgear
FS-108. 8 ports should be more than anybody with a home network
needs, if you need more, I suggest putting the switch in the center of
the network and putting a hub or another switch where you need the
extra ports to avoid a knot of cables landing in the same spot.
CPE --- Linux router -- "center switch" ----host
\ \ \-----host
\ \------host
\--hub or switch
\------------more hosts
You get the idea...
> This was an interesting discussion I saw:
> http://www.ccontrols.com/pdf/Issue%209.pdf
>
> They introduce the issue of latency, which I had thought might be an
> issue with switches as well, but wasn't expert enough to address. The
> relevance of that issue would probably be very application-dependent.
Unmanaged switches generally run in cut-through mode only, which is
superfast, and the small fraction of a millisecond that you lose
finding MAC addresses you gain bandwidth hand over fist, even moreso
on full-duplex segments.
- --
.''`. Baloo Ursidae <[EMAIL PROTECTED]>
: :' : proud Debian admin and user
`. `'`
`- Debian - when you have better things to do than fix a system
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