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
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
What's wrong with announcing routes from your customers? Even /32s if you want. Only those people who choose to accept them will be affected by them and anyone who you have a BGP session with can insist you filter them out. Treating different situations as if they were the same is not practicing what you preach. DS
participants (2)
-
David Schwartz -
Ralph Doncaster