four2six(8) IPv6 four2six(8) (NAME) four2six - IPv4 4to6 IPv6 (SYNOPSIS) four2six [-FHD] [-m srcmac] [-s src6] [-p srcport] interface ipv6-to- ipv4-gateway ipv4-src ipv4-dst [port] (OPTIONS) -F ( ) -H (hop-by-hop) -D -p srcport UDP (Ping ID) -s src6 IPv6 -m srcmac MAC IPv4 4to6 IPv6. UDP ICMPv4 . (AUTHOR) thc-ipv6 van Hauser / THC . : https://github.com/vanhauser-thc/thc- ipv6 (COPYRIGHT) four2six 3.8 (c) 2020 by van Hauser / THC https://github.com/vanhauser-thc/thc-ipv6 THC 2026-02-07 four2six(8)