On the 25th of November 2019, RIPE NCC made the final /22 IPv4 allocation from the last remaining addresses in the available pool and has officially run out of IPv4 addresses. Some of the other registrars ran out of IPv4 address blocks a few years ago: APNIC –...
It’s been a while since we talked about filtering BGP updates. BGP routers need to be configured with the right filters so packets don’t flow in directions they’re not supposed to flow. However, applying a filter to a BGP session that’s already...
Border Gateway Protocol is unique among routing protocols because it requires a number of parameters to be configured manually on each side before two routers can communicate. As a result, it’s not uncommon for sessions to fail to be established. There are also...
