X-Git-Url: https://git.rrq.au/?a=blobdiff_plain;f=rrqnet.8.adoc;h=e6ed66870223bcba67dc2e2dffebe7fc70bdf006;hb=a19be67f3f12d4e11b825c026c5e408a47b5a799;hp=ccc35c10107b982bc6d9ab8cdc70e5a4a98e8f8a;hpb=8b83ee35b343d3c5cb750f3ed8517279a78af795;p=rrq%2Frrqnet.git

diff --git a/rrqnet.8.adoc b/rrqnet.8.adoc
index ccc35c1..e6ed668 100644
--- a/rrqnet.8.adoc
+++ b/rrqnet.8.adoc
@@ -25,7 +25,7 @@ OPTIONS
 
 Note that any options must be given or omitted in the fixed order:
 
-  [-v] [-tpg] [-4] [-B n] [-T n] [-m mcast] [-t tap] [-S source]
+  [-v] [-tpg] [-4] [-B n] [-T n] [-H r] [-m mcast] [-t tap] [-S source]
 
 *-v*::
 
@@ -60,6 +60,13 @@ where it immediately puts received packets into the buffer queue which
 is serviced by the dispatch threads for optional decryption, dispatch
 decision, optional encryption and delivery.
 
+*-H* _r_::
+
+This sets the number of seconds *rrqnet* should wait between "heart
+beat" messages to uplinks. The default is 30. This is used to hold the
+uplink open for return traffic through NAT routers. Set to 0 to
+disable the heartbeat messages.
+
 *-m* _mcast_::
 
 This tells *rrqnet* to open an ipv4 UDP multicast channel as an