https://blogs.law.harvard.edu/tech/rss https://this-is-fine.io/tags/bgp/ Recent content in BGP on Fuchsbau https://this-is-fine.io/tags/bgp/ https://source.unsplash.com/2000x1322/?fox 1440 Hugo 0.125.4 de-DE Wed, 20 May 2026 22:26:11 UT https://this-is-fine.io/posts/20251122-cilium-bgp-unifi-udm/ Sat, 22 Nov 2025 09:00:00 UT ff0x https://this-is-fine.io/posts/20251122-cilium-bgp-unifi-udm/ You can get MetalLB-style service IPs without MetalLB. Cilium includes a BGP control plane that advertises LoadBalancer addresses on the LAN. The lab peers worker nodes with a UniFi UDM-SE as the default-gateway iBGP peer so phones, laptops, and the tailnet can reach Envoy Gateway VIPs without NodePorts. Without BGP (or something like MetalLB), a LoadBalancer Service on bare metal often sits Pending forever. Advertising routes into the LAN gateway fixes that: the UDM learns /32 (or the pool) and forwards traffic to the node Cilium chose for the Service. Infrastructure