Using a dyn.com dynamic host name with an AirPort device

DynDNS does support Multicast DNS (mDNS), which provides the ability to do dynamic DNS and much more. They even have handy dandy instructions for setting it up with an Airport Device. It will cost you a $30/yr standard account, though.

Right, slightly late, but I had the same problem. Although my circumstances vary a little. I am using a FortiGate FW instead. The solution should be almost the same though.

You can read my "guides" on this here:

http://blog.belodedenko.me/2013/07/dynamic-ipv6-updates-using-ddclient-for.html http://blog.belodedenko.me/2013/06/a-practical-guide-to-setting-up-ipv6.html

In summary you will need to configure ddclient with a helper script to extract your IPv4 public IP directly from the Apple router (not via default web mechanism) [see n1] and update the HE tunnel end-point (e.g.)

# /etc/ddclient.conf

daemon=300                              # check every 5 minutes
syslog=yes                              # log update msgs to syslog
#mail=root                              # mail all msgs to root
#mail-failure=root                      # mail failed update msgs to root
pid=/var/run/ddclient.pid               # record PID in file.

# update tunnel end-point address
protocol=dyndns2
use=cmd, cmd=/opt/scripts/use-apple-snmp.sh
server=ipv4.tunnelbroker.net
script=/nic/update
login=your_HE_tunnelbroker_login
password=your_HE_tunnelbroker_password
<your-HE-nick>-<#tunnel>.tunnel.tserv<#num server>.lon1.ipv6.he.net

Once your router reboots and/or and gets a new public DHCP lease, you HE tunnel will be temporarily down. Once ddclient runs and updates the HE tunnel end-point, your tunnel should come up. I've had this running for a while now, and it usually taken no more than x2 ddclient intervals (10 minutes) to get the tunnel back.

Notes:

[n1] http://ampedup.wordpress.com/2012/08/02/get-the-internet-ip-address-from-your-airport-via-bash-script/