https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285422
--- Comment #3 from Lexi Winter <l...@hemlock.eden.le-fay.org> --- note that while my example here is a bit contrived, i encountered this problem in real life in a fairly common scenario: - OSPFv3 distributes routers' IPv6 loopback addresses - IPv4 loopback addresses are distributed using IBGP on top of OSPF with BGP extended next hop - FreeBSD receives a BGP advertisement for an IPv4 prefix with an IPV6 next hop - BGP resolves the nexthop of the IPv4 route to a link-local IPv6 address via OSPF, and adds this route to the kernel FIB - FreeBSD cannot ping an address on the IPv4 route because it chooses 0.0.0.0 as the source address. this type of setup (MP-BGP over OSPFv3) is *very* common in modern IP networks, and it's a significant disadvantage of FreeBSD that it can't operate in this environment without assigning the /32 loopback to every IP interface. -- You are receiving this mail because: You are the assignee for the bug.
