extensions: libxt_DNAT: rename IPv4 manpage and tell about IPv6 support
This patch renames libipt_DNAT.man to libxt_DNAT.man thus informing
about the IPv6 version, as suggested by Patrick McHardy.
Also, it updates the list of valid protocols for port mapping is
updated to: tcp, udp, dccp and sctp.
Signed-off-by: Mart Frauenlob <mart.frauenlob@chello.at>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/extensions/libipt_DNAT.man b/extensions/libxt_DNAT.man
similarity index 85%
rename from extensions/libipt_DNAT.man
rename to extensions/libxt_DNAT.man
index d5ded35..225274f 100644
--- a/extensions/libipt_DNAT.man
+++ b/extensions/libxt_DNAT.man
@@ -7,20 +7,17 @@
chains, and user-defined chains which are only called from those
chains. It specifies that the destination address of the packet
should be modified (and all future packets in this connection will
-also be mangled), and rules should cease being examined. It takes one
-type of option:
+also be mangled), and rules should cease being examined. It takes the
+following options:
.TP
\fB\-\-to\-destination\fP [\fIipaddr\fP[\fB\-\fP\fIipaddr\fP]][\fB:\fP\fIport\fP[\fB\-\fP\fIport\fP]]
which can specify a single new destination IP address, an inclusive
-range of IP addresses, and optionally, a port range (which is only
-valid if the rule also specifies
-\fB\-p tcp\fP
-or
-\fB\-p udp\fP).
+range of IP addresses. Optionally a port range,
+if the rule also specifies one of the following protocols:
+\fBtcp\fP, \fBudp\fP, \fBdccp\fP or \fBsctp\fP.
If no port range is specified, then the destination port will never be
modified. If no IP address is specified then only the destination port
will be modified.
-
In Kernels up to 2.6.10 you can add several \-\-to\-destination options. For
those kernels, if you specify more than one destination address, either via an
address range or multiple \-\-to\-destination options, a simple round-robin (one
@@ -37,3 +34,5 @@
Gives a client the same source-/destination-address for each connection.
This supersedes the SAME target. Support for persistent mappings is available
from 2.6.29-rc2.
+.TP
+IPv6 support available since Linux kernels >= 3.7.
