A while back I did some experimentation with IPv6 on my Cisco 2611xm. I was using a tunnel provided by Hurricane Electric, which worked well, but I had no firewall and that made me a bit nervous. A little while after I got things set up, I procured a Cisco ASA5505 with a 50 client license via eBay. My hope was that I could use the ASA for the firewall and the router to terminate the tunnel. As it turns out, this would have required a second IP address, because the ASA is not able to pass Protocol 41 traffic.
Implementing IPv6 at home—part 2
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