On Mon, Aug 9, 2021 at 8:48 AM Billy Croan <BCroan@unrealservers.net> wrote:
How does the community feel about using /24 originations in BGP as a tactical advantage against potential bgp hijackers? How many routers out there today would be affected if everyone did this?
Hi Billy, I did some math on this years ago and it worked out to about 8.5 million IPv4 routes. That's 10 times the current table size, more than any big-iron router can handle today. If everybody did it, it'd crash the Internet.
Is this seen as route table pollution, or a necessary evil in today's world?
Pollution. And it won't save you from a hijack either, since your adversary's /24 routes will compete and win for at least part of the Internet.
Are there any big networks that drop or penalize announcements like this?
Not in an automated way. Which is bad news for you if you do this because it means getting folks to -undo- the restrictions they manually enforce on your specific address space is nearly impossible. Regards, Bill Herrin -- William Herrin bill@herrin.us https://bill.herrin.us/