FogIXP AMS has outgrown the current /26 prefix of its IPv4 Peering LAN and we are therefore renumbering into a new /24 IPv4 prefix. The IPv6 prefix will remain the same and does not change.

The current used prefix is 194.153.153.64/26, the new prefix will be 185.1.3.0/24

At your earliest convenience, please add a secondary IPv4 to your FogIXP AMS interface as well as add new BGP IPv4 RS sessions, using the same last digit. If you have 194.153.153.70/26 now, you will become 185.1.3.70/24. Please keep the old IP address / BGP sessions active for 1 month for a smooth migration.

We will move the existing RS on the IXP to the following IPs: RS-1: 185.1.3.66 - active by 11.11
RS-2: 185.1.3.67 - active by 11.12

Please set up additional BGP sessions with the two new route servers listed above, the IPv6 or our AS61190 does not change.

Timeline: 2026-11-03 First Information, request to add the new BGP IPv4 address and establish connection with the new route servers. 2026-11-11 RS will become operational on new IPs & first reminder 2026-11-30 Second reminder to reconfigure sessions 2026-12-11 Last reminder, old routeservers will be decommissioned and prefix returned afterwards

Please keep the current route server BGP connections active during the migration period. Maintaining both the old and new sessions simultaneously will ensure uninterrupted routing while the migration is in progress.

If you have any questions or require assistance, please do not hesitate to contact us.