clockdiff 8 iputils-&snapshot; clockdiff measure clock difference between hosts clockdiff -o -o1 [2] packets or, optionally, IP TIMESTAMP option [3] option added to ICMP ECHO. [1] Use IP TIMESTAMP with ICMP ECHO instead of ICMP TIMESTAMP messages. It is useful with some destinations, which do not support ICMP TIMESTAMP (f.e. Solaris <2.4). Slightly different form of Some nodes (Cisco) use non-standard timestamps, which is allowed by RFC, but makes timestamps mostly useless. Some nodes generate messed timestamps (Solaris>2.4), when run , , . [1] ICMP ECHO, RFC0792, page 14. [2] ICMP TIMESTAMP, RFC0792, page 16. [3] IP TIMESTAMP option, RFC0791, 3.1, page 16. Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>. It was based on code borrowed from BSD YOSHIFUJI Hideaki <yoshfuji@skbuff.net>. http://www.skbuff.net/iputils/iputils-current.tar.bz2. This documentation is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License Version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. For more details see the file COPYING in the source distribution of Linux kernel of version 2.4. ]]>