fgrep fe80::250:56ff:feb6:5310 tr
connect(3, {sa_family=AF_INET6, sin6_port=htons(21), inet_pton(AF_INET6, "fe80::250:56ff:feb6:5310", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=if_nametoindex("eth0")}, 28) = -1 EINPROGRESS (Operation now in progress)
connect(3, {sa_family=AF_INET6, sin6_port=htons(21), inet_pton(AF_INET6, "fe80::250:56ff:feb6:5310", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=if_nametoindex("eth0")}, 28) = 0
getsockname(3, {sa_family=AF_INET6, sin6_port=htons(47829), inet_pton(AF_INET6, "fe80::250:56ff:feb6:5310", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=if_nametoindex("eth0")}, [28]) = 0
bind(4, {sa_family=AF_INET6, sin6_port=htons(0), inet_pton(AF_INET6, "fe80::250:56ff:feb6:5310", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 EINVAL (Invalid argument)