r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000540)={0xa, 0x0, 0x0, @dev, 0x2}, 0x1c)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @local}}, 0x1c)
r1 = socket$netlink(0x10, 0x3, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
sendmsg$nl_generic(r2, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB="3c0000002000210c000000000000000002"], 0x3c}}, 0x0)
setsockopt$inet6_IPV6_ADDRFORM(r0, 0x29, 0x1, &(0x7f0000000040), 0x4)