[c-nsp] list wisdom please, Cisco switches

Aaron aaron1 at gvtc.com
Tue Jan 15 12:20:25 EST 2013


I wonder if it isn't the "not ping local to bcast domain" aspects of private
vlans that make them attractive as much as it's the layer 2 protection you
get to mitigate attacks on arp, mac table corruption/flooding, etc.

Aaron

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Nick Hilliard
Sent: Tuesday, January 15, 2013 9:58 AM
To: Alex Pressé
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] list wisdom please, Cisco switches

On 15/01/2013 15:30, Alex Pressé wrote:
> Using private VLANs should make quick work of keeping traffic separate.

I don't get why people shouldn't be able to ping each other / etc.  Isn't
this traffic functionally equivalent to any other Internet traffic?  What's
different about it?

Nick

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