Private use of non-RFC1918 IP space

Skeeve Stevens skeeve at
Tue Feb 3 22:30:22 UTC 2009

Well Quest is stupid for allowing unallocated space to transit it's network.

I've seen ISP's in which a traceroute to got into their network,
and to their upstreams before being killed off at some point.... sheesh

-----Original Message-----
From: David Coulson [mailto:david at] 
Sent: Tuesday, 3 February 2009 7:11 AM
To: Bruce Grobler
Cc: 'NANOG list'
Subject: Re: Private use of non-RFC1918 IP space

I can mtr to via Qwest :-)

Bruce Grobler wrote:
> Yep!, go ahead and trace it.
> -----Original Message-----
> From: David Conrad [mailto:drc at] 
> Sent: Monday, February 02, 2009 9:48 PM
> To: Bruce Grobler
> Cc: NANOG list
> Subject: Re: Private use of non-RFC1918 IP space
> On Feb 2, 2009, at 8:10 AM, Bruce Grobler wrote:
>> Most ISP's, if not all, null route therefore you shouldn't
>> encounter any problems using it in a private network.
> Is this true?
> This will cause endless entertainment when IANA allocates  
> sometime within the next two or three years...
> Regards,
> -drc

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