I couldn't tell you how long these features have been in Asterisk but I decided to give IPv6 and SIP/TCP a try in the latest 1.8 release. Basically it's a simple process. There are no special options required in the build, not that I could find anyway.

Once it's installed, there are two configuration options that need to be set. By default Asterisk will only listen on IPv4 and UDP so add these options in sip.conf:

  tcpenable=yes
  bindaddr=::

Obviously those two can be used independently if you want to try just IPv6 or just TCP, but where's the fun in doing one thing at a time?

So far everything is working just like it used to. I only have one phone that supports IPv6 or TCP, a softphone for Android named Sipdroid. Hopefully more devices will add support in the future.

Looks like World IPv6 Day was a good success. I saw a lot of traffic on NANOG announcing various issues people had seen, and many people declaring success. My own little fiefdom experienced relatively few problems. My Linux laptop had no issues with Google, Facebook and the other sites I could find. I reset my traffic counters this morning so I could watch it:

• IPv4 inbound: 476MB, IPv4 outbound: 77M
• IPv6 inbound: 5320K, IPv4 outbound: 1744K

On the work side of things, unfortunately we only have a few IPv6 test subjects so we weren't able to verify our own network. Given that it works fine in all our other tests I'm sure it's working correctly. What I wonder is if anybody had issues due to broken tunnels; none have been brought to my attention anyway.

I will be presenting at the Utah Open Source Conference (UTOSC) again this year. On tap are 3, count 'em, 3 presentations. I'm still not quite sure what possessed me to submit 3 abstracts but I did and (just to spite me I think) they accepted all of them.

Refer to the schedule for any last minute changes but for now here are the times I'm speaking.

• Oct 08, 3:00 p.m. Networking 101
• Oct 08, 7:15 p.m. Are you ready for IPv6
• Oct 10, 11:00 a.m. Introduction to Perl for scripting

Hope to see you there.