I am trying to set up a Hurricane IPv6 tunnel on my Ubuntu 11.10 computer. I have set up my /etc/network/interfaces file as stated on https://wiki.ubuntu.com/IPv6#Get_connected_with_Hurricane_Electric.
My /etc/network/interfaces file is the following:
auto lo iface lo inet loopback auto he-ipv6 iface he-ipv6 inet6 v4tunnel endpoint 18.104.22.168 address 2001:470:1f06:6::2/64 netmask 64 up ip -6 route add default dev he-ipv6 down ip -6 route del default dev he-ipv6
When I try to start IPv6 by running sudo ifup he-ipv6, I receive the following:
add tunnel sit0 failed: No buffer space available Failed to bring up he-ipv6.
I have double checked that the data I entered from Hurricane is correct. What is causing this problem, and how can I fix it?