27 Jul
2002
27 Jul
'02
1:39 p.m.
Off your network, your legal rights are pretty limited. I (and I'm sure lots of other admins) block at the /24 boundry. Anything you announce from /25 to /32 will be ignored on my network. Some providers choose to block according to RIR allocation sizes. To me, that's not worth the maintenance hassle. To them, it may mean the difference between having to upgrade or replace large numbers of routers last year or sometime in the next few years.
I've never suggested accepting /25's thru /32's. I'm wondering if the people saying I should not de-aggregage my /20 actually practice what they preach and filter /24's and don't globally announce /24's from their customers. -Ralph