23 Oct
2015
23 Oct
'15
10:38 a.m.
On Fri, Oct 23, 2015 at 11:39:12AM -0400, D. Hugh Redelmeier wrote:
7.11.164.145 is not in 7.0.0.0/16.
Hmm, nope that is true. I wonder if someone at rogers is simply changing 10 to 7 without making sure to stay in the valid range.
Is it the case that the /8 is completely unrouted?
According to the NTT Lookinglass, the router in Ashburn VA sees no network in its BGP table for 7.11.164.145. So I guess it is safe.
A bit more searching does seem to say that the entire 7.0.0.0/8 block is not routeable from the normal internet, so rogers apparently was told by IANA they could use them internally as long as they did not allow traffic to or from those addresses outside of rogers. -- Len Sorensen