Setting up anycast services using Bird OSPF to inject /32 and /128 routes across multiple locations. Using FreeBSD VMs for redundant IPv4/IPv6 anycast DNS and web services.
Comparing methods for redundant internet failover: manual, dual-wan firewalls, and BGP routing. BGP provides automatic failover, simplified troubleshooting, and better control over multi-provider connectivity.
BGP redundancy techniques: prepending, localpref coordination, and address splitting. Comparing methods for inbound failover with pros and cons of each approach.
Troubleshooting UDP stream connectivity issues using packet captures and Wireshark. Identified TTL expiration as root cause of packets not reaching destination across multiple hops.
