r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @local}}, 0x1c)
setsockopt$inet6_IPV6_RTHDRDSTOPTS(r0, 0x29, 0x37, &(0x7f0000001580)=ANY=[], 0x20)
setsockopt$inet6_IPV6_ADDRFORM(r0, 0x29, 0x1, &(0x7f0000000400), 0x4)