4 ms·
In 1998, a hacker collective known as the L0pht testified in Congress that they could take down the Internet in 30 minutes. It is believed BGP black holes coul
by partycoder 9y ago
In 1998, a hacker collective known as the L0pht testified in Congress that they could take down the Internet in 30 minutes.
It is believed BGP black holes could be one way of achieving this.
Basically tell every node "I've got the lowest routing cost to every node, send me all your traffic", and then drop all the traffic.
- aaomidi 9y agoThis is much better nowadays but bgp is still problematic.
- maltalex 9y agoIt's not really better today. Possibly even worse. In 1998 there were fewer than 5000 different networks (Autonomous systems) on the Internet. Today that number is over 80K. Network operators used to personally know each other and their clients. So the automatic filtering is better today than it was in 1998, but it can still be easily bypassed. I know for a fact that even as a tiny network, all you need to do to get the some of the biggest networks in the world to accept your (real or fake) BGP announcement is to email their support center.
- vvjhggjvg 9y ago> all you need to do to get the some of the biggest networks in the world to accept your (real or fake) BGP announcement is to email their support center They’ll do the needful alright.
- dredmorbius 9y agoAren't ASNs capped at 2^15 (65k and change)? Or has the IPv6 expansion already started happening?
- dsp1234 9y agoASN's switched over to 32 bits around 2007
- dredmorbius 9y agoThanks.