r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
r1 = dup(r0)
ioctl$sock_inet6_SIOCADDRT(r1, 0x890b, &(0x7f0000000040)={@remote, @mcast2, @mcast2, 0x0, 0x0, 0x0, 0x400, 0x0, 0x40790022})