Add manpage entry for ICMP Timestamp

diff --git a/doc/fping.pod b/doc/fping.pod
index e20ed304657c185f51a5b9fc9ecfc53c95a637c4..fbd52a5290dbf4699346cadb11129b78c2881753 100644 (file)
--- a/doc/fping.pod
+++ b/doc/fping.pod
@@ -155,6 +155,12 @@ to any target (default is 10, minimum is 1).
 
 Set the interface (requires SO_BINDTODEVICE support).
 
+=item B<--icmp-timestamp>
+
+Send ICMP timestamp requests (ICMP type 13).
+If B<fping> not recive ICMP timestamp reply, "(Timestamp unknown)" is returned.
+IPv4 only, requires root privileges.
+
 =item B<-k>, B<--fwmark>=I<FWMARK>
 
 Set FWMARK on ping packets for policy-based routing. Requires Linux kernel