MrKernel Network

I have two internet connections coming into my place, and I thought it would be fun to extend my VPN to my friends place to two tunnels with BGP. Our setup looks something like this:

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I have been running a VoIP network for just over two years now. It started out with Asterisk [http://www.asterisk.org] but a few months ago I rolled out my 2nd generation voip network using OpenSER [http://www.openser.org]. There was a few reason for the change first was scaleability and redundancy, the second was bandwidth, or media path issues. When I used Asterisk the media path for all calls came through me, now they go endpoint to endpoint. The biggest challenge with that was nat, which is one of the main resons I want to see IPv6 take off. Read more for more on NAT and SIP.

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I rebuilt my firewall last night with OpenBSD 3.9 and pf. I was using CentOS 4.3 with  iptables. pf [http://www.openbsd.org/faq/pf] is awsome, it total blows iptables away. The real reason for the rebuild was I wanted better IPv6 support and IPSEC support. I have been having a hard time finding a good IPv6 tunnel broker to connect to, and I see that http://www.6bone.net/ is shutting down. This is a good in way, it hopefullymeans that there will be more production IPv6 address being deployed. I hope ISP here in Canada start offering IPv6 addresses soon. (more…)