diff options
Diffstat (limited to 'share/man/man4/inet6.4')
| -rw-r--r-- | share/man/man4/inet6.4 | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/share/man/man4/inet6.4 b/share/man/man4/inet6.4 index 2e9d38f..7c15b55 100644 --- a/share/man/man4/inet6.4 +++ b/share/man/man4/inet6.4 @@ -413,6 +413,19 @@ Integer: trigger level of cached, unreferenced, protocol-cloned routes which initiates dynamic adaptation (default 128). .El .Ss Interaction between IPv4/v6 sockets +By default, +.Nx +does not route IPv4 traffic to +.Dv AF_INET6 +sockets. +The default behavior intentionally violates RFC2553 for security reasons. +Listen to two sockets if you want to accept both IPv4 and IPv6 traffic. +IPv4 traffic may be routed with certain +per-socket/per-node configuration, however, it is not recommended to do so. +Consult +.Xr ip6 4 +for details. +.Pp The behavior of .Dv AF_INET6 TCP/UDP socket is documented in RFC2553. @@ -480,18 +493,6 @@ Users are advised to take care handling connections from IPv4 mapped address to .Dv AF_INET6 sockets. -.\".Pp -.\"Because of the above, by default, -.\"KAME/NetBSD and KAME/OpenBSD -.\"does not route IPv4 traffic to -.\".Dv AF_INET6 -.\"sockets. -.\"Listen to two sockets if you want to accept both IPv4 and IPv6 traffic. -.\"On KAME/NetBSD, IPv4 traffic may be routed with certain -.\"per-socket/per-node configuration, however, it is not recommended. -.\"Consult -.\".Xr ip6 4 -.\"for details. .Sh SEE ALSO .Xr ioctl 2 , .Xr socket 2 , |
