Add directed broadcast forwarding documentation

1 files changed, 17 insertions, 1 deletions

diff --git a/docs/_include/interface-ip.txt b/docs/_include/interface-ip.txt
index 75441040..4164985b 100644
--- a/docs/_include/interface-ip.txt
+++ b/docs/_include/interface-ip.txt
@@ -19,7 +19,7 @@
   {{ var5 }} {{ var6 }} ip arp-cache-timeout
 
   Once a neighbor has been found, the entry is considered to be valid for at
-  least for this specifc time. An entry's validity will be extended if it
+  least for this specific time. An entry's validity will be extended if it
   receives positive feedback from higher level protocols.
 
   This defaults to 30 seconds.
@@ -64,6 +64,22 @@
     set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} ip disable-forwarding
 
 .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }}
+  {{ var5 }} {{ var6 }} ip enable-directed-broadcast
+
+  Define different modes for IP directed broadcast forwarding as described in
+  :rfc:`1812` and :rfc:`2644`.
+
+  If configured, incoming IP directed broadcast packets on this interface will
+  be forwarded.
+
+  If this option is unset (default), incoming IP directed broadcast packets
+  will not be forwarded.
+
+  .. code-block:: none
+
+    set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} ip enable-directed-broadcast
+
+.. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }}
   {{ var5 }} {{ var6 }} ip enable-arp-accept
 
   Define behavior for gratuitous ARP frames who's IP is not already present in