The first PING is lost because the source system is performing an ARP request. The ARP information, once obtained, is cached (remembered) for a small amount of time. Successive Pings to the host should show all four replies.
Hope this helps, Lance ""Eduardo Perestrelo"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi, > > All times i try to ping an interface when has changed interface status > to up (no shutdown), first packet of ping is lost.... don4t receive > sucessful for first packet. In all equipaments cisco found this error when > configure a new router or switch. > Anyone people has found this error too ?! > I don4t found any documents or faqs talking about this. > > Eduardo Perestrelo > CCNA / CCAI Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61368&t=61366 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

