[clug] icmp from 172.31.*.*

[Andrew Pollock]

On Wed, Aug 17, 2005 at 12:26:13AM +1000, Eyal Lebedinsky wrote:
> I note that my firewall regularly blocks icmp from this (reserved) subnet,
> sometimes a few per minute, sometimes none for hours.
> 
> I thought that it is non-routable (172.16.0.0/12) and as such should
> not reach my machine (on bigpond ADSL) even if it leaks (or otherwise
> comes) out of another bp user.
> 
> BTW I only see these IPs
> 	172.31.20.24
> 	172.31.35.24
> 	172.31.35.152
> The bulk are :11 (unreachable).
> 
> I must be missing something - what it this?
> 

Get upset if it's causing your billable traffic to increase.

regards

Andrew