On Thursday 23 June 2016 at 01:22:45, Alejandro Cabrera Obed wrote: > #ifconfig > > eth0 Link encap:Ethernet HWaddr 00:50:53:b2:6e:88 > inet addr:10.17.133.114 Bcast:10.17.135.255 Mask:255.255.252.0 > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 Well, that certainly confirms that IPv6 is disabled on your machine (from the lack of lines such as "inet6 addr:"). You say "I haven't disabled the IPv6 protocol, no references in /etc/default/grub neither in systcl asociated file." Something (or someone) has certainly disabled IPv6 on this machine, though. What are the outputs from: grep -v ^# /etc/default/networking cat /etc/network/interfaces ? Antony. -- "It is easy to be blinded to the essential uselessness of them by the sense of achievement you get from getting them to work at all. In other words - and this is the rock solid principle on which the whole of the Corporation's Galaxy-wide success is founded - their fundamental design flaws are completely hidden by their superficial design flaws." - Douglas Noel Adams Please reply to the list; please *don't* CC me. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users