North American Network Operators Group

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Re: Policies: Routing a subset of another ISP's address block

  • From: Jesper Skriver
  • Date: Fri Apr 07 14:37:11 2000

On Fri, Apr 07, 2000 at 08:13:25PM +0200, Jesper Skriver wrote:
> On Wed, Apr 05, 2000 at 07:10:30PM -0400, Phillip Vandry wrote:
> > > I can say for sure, that we doesn't accept more specific announcements within 
> > > our PA blocks, nor does we accept traffic with a source within these
> > > blocks.
> > 
> > So you might not allow a customer to break up your block, but you haven't
> > said that you wouldn't allow a customer to announce a fragmented block
> > belonging to someone else, supposing this other party does not share
> > your policy.
> But they will be unable to reach anything within our network (which is >
> 50% of the danish Internet).

Sorry, I misread your mail - if a BGP connected customer announce a
fragment of somebody else's block, it's a matter between them. But if
they want us to announce such a fragment, we require the accept of the
operator "owning" that block.


Jesper Skriver, jesper(at)skriver(dot)dk  -  CCIE #5456
Work:    Network manager @ AS3292 (Tele Danmark DataNetworks)
Private: Geek            @ AS2109 (A much smaller network ;-)

One Unix to rule them all, One Resolver to find them,
One IP to bring them all and in the zone to bind them.