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authorume <ume@FreeBSD.org>2002-07-26 08:11:51 +0000
committerume <ume@FreeBSD.org>2002-07-26 08:11:51 +0000
commit2fb881e4ee66b542f2756a0f3dbdc2d6e43e1133 (patch)
tree3dafd5af71519ed7f0adeb7b5ee03650e7315030 /share/man
parent7968a1adb67c2cfa6d139b62f6bb9e89c721fe49 (diff)
downloadFreeBSD-src-2fb881e4ee66b542f2756a0f3dbdc2d6e43e1133.zip
FreeBSD-src-2fb881e4ee66b542f2756a0f3dbdc2d6e43e1133.tar.gz
note that we intentionally violate RFC2553 for security reasons.
Adviced by: itojun Obtained from: NetBSD
Diffstat (limited to 'share/man')
-rw-r--r--share/man/man4/inet6.425
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 ,
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