FreeBSD silently changes TTL to 1 when MSG_DONTROUTE is used, even when it is explicitly set to another value. That breaks TTL security sockets, including BFD which always uses TTL 255. Bad FreeBSD!
FreeBSD silently changes TTL to 1 when MSG_DONTROUTE is used, even when it is explicitly set to another value. That breaks TTL security sockets, including BFD which always uses TTL 255. Bad FreeBSD!