Hi, On Thu, Apr 13, 2006 at 06:37:49AM -0400, itachi@cnt.uo.edu.cu wrote: > ruter-deb:/etc# ping6 localhost > unknown host Look at your /etc/hosts. $ ping6 ip6-localhost or $ ping6 ::1 should work. If of any help: http://wiki.debian.org/DebianIPv6 Best regards, Frédéric Lehobey