Dear Ralf, Colin and Peter I would like to thank you, the ping error is resolved. Best regards,Amer Eng Amer Alghadhban COE SANS-GCFW CEH, SCNP, CCNA -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20160601/40786b80/attachment.html>