Simon Jolle wrote: > Hi Centos Users > > # ping 10.104.89.146 > connect: Invalid argument Do you get this with all kinds of arguments to ping, or is it just if you ping your own IP? # ping 130.226.184.9 # ping ftp.crc.dk # ping localhost # ping 127.0.0.1 Does the machine have more than one NIC? And NAT's to the 10.x.x.x addresses? Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Fax: +45 33 27 47 08 Email: mk at crc.dk Homepage: http://www.crc.dk