North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Filtering Best Practices, et al (Was Verio Peering, Gordon's Knot)
> > On Wed, Oct 10, 2001 at 10:54:03AM +0200, Stephane Bortzmeyer wrote: > > > > > I'm currently in the process of setting up a new border > router, and the > > > recent debate on the above topic got me wondering what > the best practice > > > filtering policy is? Is there one? > > > > I'm interested to see if people filter route anouncements > on the basis > > of registered routes in an Internet Routing Registry. In our area > > (Europe), the RIPE database typically contains less than half of the > > routes which are actually announced. I assume it is not better in > > ARINland. > > When I worked at Tiscali (World Online) Denmark, we did prefix > filtering on our peers, the results of that can be seen on > http://as8807.net/dixirrstats.txt (Though that is old, january this > year) > I believe that TeleDanmark also still do IRR filtering, and I know of > several providers in Denmark who are ready to follow suit as soon as > some of the "worst IRR-offenders" have updated their IRR > records (which > actually has happened already) > > If you decide to implement IRR filtering you may want to see how your > peers perform in the IRR area by using a small utility, which can be > downloaded from http://noc.tele.dk/util.html. This is the utility that > was used to produce the stats for Tiscali's router. Thanks. (Yes, successfully filtering peers wrt IRR sometimes require human interaction - asking peer not up-to-date to become so.) mh > > -- > Andreas Plesner Jacobsen > |