r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a)
r1 = socket$packet(0x11, 0x3, 0x300)
getsockopt$packet_int(r1, 0x107, 0x9, &(0x7f0000000000), &(0x7f0000000040)=0x4)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000140)={'sit0\x00', <r2=>0x0})
ioctl$sock_inet6_SIOCSIFADDR(r0, 0x8916, &(0x7f0000000100)={@ipv4={'\x00', '\xff\xff', @multicast2}, 0x0, r2})