I agree with this completely, and support the suggestion too.lb wrote:IPv6 is in a major deployment phase *right now* (end-user ISPs are adopting it), and I also think it's pretty shortsighted to disable it by default. Moreover, the recently published RFC 6540 mandates that all IP-capable nodes must have IPv6 support. "IP" is now officially synonymous with "IPv6".
It's only a simple switch and won't take much memory, why not enable it for the next release of the Debian image?
Linux has been IPv6-capable for longer than any other operating system, and disabling it when it's leading the pack is definitely shortsighted. Also, it's bad for education, since IPv4 is almost out of addresses and we need the new generation of youngsters to be IPv6-aware.
In the UK, some ISPs like Andrews & Arnold have been offering IPv6 to all users for 10 years already, and many others are following. Not surprisingly the largest ISPs are the slowest to modernize, but Pi should be supporting the best not the worst of them.
All the machines on my LAN are running IPv6 dual stack, and I'll certainly be recompiling my Pi kernel with IPv6 enabled (board not expected before June though). And lest anyone forget, you need to configure in the IPv6 version of Netfilter and install the ip6tables control utility too, as the IPv4 and IPv6 firewalls are entirely separate in Linux.