Routing Policy and http://rs.arin.net/ip-allocation.html

Bryan Fullerton bryanf at samurai.com
Wed May 6 17:26:12 UTC 1998


On Wed, May 06, 1998 at 11:51:38AM -0500, Stephen Schmidt <steve at eagle.ais.net> wrote:
> > For the first time we have had to deal with  Sprint's routing policy as
> > defined by http://www.sprint.net/filter.htm.  Here is the situation.  
> > 
> > One of our dialup customers wants to access his website in the
> > 206.116.31.0/24 network at another provider.  PSI is advertising it as a
> > /24.  According to Sprint's routing policy, they do not honour anything
> > longer than a /19 in 206.0.0.0/8 . 
> 
> It's interesting that PSI routes it at all.  While IP ownership (note the
> NON-PORTABLE below) and routing aren't necessarily interconnected, I
> suggest contacting the block's owner and seeing if they know it's
> alternately routed.  If they wish, they can request that PSI un-route this
> block.  However, that would break whomever is using it.  The user should
> re-number into PSI space, and this issue will go away.  If the user is
> multi-homed, they should investigate the adivisibility of getting a CIDR
> block which they can announce as an aggregate.
> 
> My $0.02
> ___
> iSTAR Internet Inc. (NETBLK-ISTAR0005)
>    250 Albert Street, Suite 202
>    Ottawa, Ontario K1P 6M1
>    Canada
[snip]

PSI bought iSTAR earlier this year, so it's not really surprising that
they're routing these networks.

Bryan

-- 
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