r0 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$inet_udp_encap(r0, 0x11, 0x64, &(0x7f0000000000)=0x3, 0x4)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
dup2(r1, r0)