Roy's Blog

A Hacker's musings on Code | Tech | Life

So part of the IPv6 spec deals with reach-ability. It turns out the kernel is much better than this, purely because it relieves updates userland cannot when packets flow to/from the router we care about. So removing the Neighbour Solicition code and instead polling (BSD) or listening for neighbour updates (Linux) makes the reachability detection much more reliable.

Continue reading...