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-rw-r--r--extensions/libxt_DNAT.man2
1 files changed, 2 insertions, 0 deletions
diff --git a/extensions/libxt_DNAT.man b/extensions/libxt_DNAT.man
index e044c821..12d334af 100644
--- a/extensions/libxt_DNAT.man
+++ b/extensions/libxt_DNAT.man
@@ -21,6 +21,8 @@ will be modified.
If \fBbaseport\fP is given, the difference of the original destination port and
its value is used as offset into the mapping port range. This allows to create
shifted portmap ranges and is available since kernel version 4.18.
+For a single port or \fIbaseport\fP, a service name as listed in
+\fB/etc/services\fP may be used.
.TP
\fB\-\-random\fP
If option