Dear All To find the optimum MTU size , on the MS Windows client , we need to try for "C:\ping www.google.com -f -l 1472" and then do for trial and error to find the optimum size . Can you please do me favor and let me know what is the equivalent of "ping -f -l" on the CentOS server ? Let me thank you in advance -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20091118/48ae9678/attachment-0004.html>