Added 'permanent' keyword for non-overwritable static ARP entries.

1 files changed, 8 insertions, 6 deletions

diff --git a/usr.sbin/arp/arp.8 b/usr.sbin/arp/arp.8
index b56505e422c..0cc99ad80b4 100644
--- a/usr.sbin/arp/arp.8
+++ b/usr.sbin/arp/arp.8
@@ -50,7 +50,7 @@
 .Fl d Ar hostname
 .Nm arp
 .Fl s Ar hostname ether_addr
-.Op Ar temp
+.Op Ar temp | permanent
 .Op Ar pub
 .Nm arp
 .Fl f Ar filename
@@ -90,11 +90,13 @@ entry for the host called
 .Ar hostname
 with the Ethernet address 
 .Ar ether_addr .
-The Ethernet address is given as six hex bytes separated by colons.
-The entry will be permanent unless the word
+The Ethernet address is given as six hex bytes separated by
+colons.  The entry will be static, i.e. not time out, unless the word
 .Ar temp
-is given in the command. 
-If the word
+is given in the command.  A static ARP entry can be overwritten 
+by network traffic, unless the word
+.Ar permanent
+is given.  If the word
 .Ar pub
 is given, the entry will be
 .Dq published ;
@@ -115,7 +117,7 @@ in the file should be of the form
 .Pp
 .Bd -filled -offset indent -compact
 .Ar hostname ether_addr
-.Op Ar temp
+.Op Ar temp | permanent
 .Op Ar pub
 .Ed
 .Pp