In October we moved the first batch of VMs off leased Cogent addresses and onto our own RIPE space, with one DHCP change per VM and no reboots. On 9 November 2026 at 00:00 UTC we moved the rest to another of our own prefixes.
It mostly went the same way. One thing did not, and it is the more useful part of this story.
Our Lisbon edge runs a pair of MikroTik routers. VMs use VRRP gateways, so either router can take over if the other one dies. One day the busier router climbed from 60% to 90% CPU with no change in traffic, and FastTrack was barely working.
Part of our Lisbon address space was leased from Cogent. Leased addresses work, but they are not yours: the carrier owns them, and leaving means renumbering every server on them. So we are moving customers onto our own RIPE prefixes, announced from our own network, AS199053.
On 1 October 2026 at 00:00 UTC we moved the first batch of customer VMs to a new /24.