Hello nsna_ping seems to convert target_host address to some multicast address and try to do something with it which is failing:
[root@osho ~]# ps aux | grep team root 475399 0.0 0.0 8580 4064 ? S 01:35 0:00 /usr/bin/teamd -o -n -U -D -N -t team0 -c { "runner": { "name": "activebackup" }, "link_watch": { "name": "nsna_ping", "target_host": "fe80::1e98:ecff:febf:8000" } } root 475970 0.0 0.0 6164 2256 pts/0 S+ 01:47 0:00 grep --color=auto team [root@osho ~]# LC_ALL=C strace -p 475399 strace: Process 475399 attached pselect6(23, [3 9 10 14 15 16 19 20 22], [], [15], NULL, NULL) = 1 (in [22]) read(22, "\1\0\0\0\0\0\0\0", 8) = 8 getsockname(20, {sa_family=AF_PACKET, sa_data="\0\3\3\0\0\0\1\0\0\6<\354\357rE\327"}, [20 => 18]) = 0 sendto(21, "\207\0\0\0\0\0\0\0\376\200\0\0\0\0\0\0\36\230\354\377\376\277\200\0\1\1<\354\357rE\327", 32, 0, {sa_family=AF_INET6, sin6_port=htons(0), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "ff02::1:ffbf:8000", &sin6_addr), sin6_scope_id=if_nametoindex("eno2np1")}, 28) = -1 EADDRNOTAVAIL (Cannot assign requested address) pselect6(23, [3 9 10 14 15 16 19 20 22], [], [15], NULL, NULL) = 1 (in [22]) read(22, "\1\0\0\0\0\0\0\0", 8) = 8 getsockname(20, {sa_family=AF_PACKET, sa_data="\0\3\3\0\0\0\1\0\0\6<\354\357rE\327"}, [20 => 18]) = 0 sendto(21, "\207\0\0\0\0\0\0\0\376\200\0\0\0\0\0\0\36\230\354\377\376\277\200\0\1\1<\354\357rE\327", 32, 0, {sa_family=AF_INET6, sin6_port=htons(0), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "ff02::1:ffbf:8000", &sin6_addr), sin6_scope_id=if_nametoindex("eno2np1")}, 28) = -1 EADDRNOTAVAIL (Cannot assign requested address) pselect6(23, [3 9 10 14 15 16 19 20 22], [], [15], NULL, NULL) = 1 (in [22]) read(22, "\1\0\0\0\0\0\0\0", 8) = 8 getsockname(20, {sa_family=AF_PACKET, sa_data="\0\3\3\0\0\0\1\0\0\6<\354\357rE\327"}, [20 => 18]) = 0 sendto(21, "\207\0\0\0\0\0\0\0\376\200\0\0\0\0\0\0\36\230\354\377\376\277\200\0\1\1<\354\357rE\327", 32, 0, {sa_family=AF_INET6, sin6_port=htons(0), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "ff02::1:ffbf:8000", &sin6_addr), sin6_scope_id=if_nametoindex("eno2np1")}, 28) = -1 EADDRNOTAVAIL (Cannot assign requested address) pselect6(23, [3 9 10 14 15 16 19 20 22], [], [15], NULL, NULL^Cstrace: Process 475399 detached <detached ...>
How is it intended to be working?