kamailio IPv6運作超難搞 (失敗收場)

如果你想試試SIP/IPv6，很可能會搜尋到這篇文章:
Run your own SIP VoIP service on both IPv4 and IPv6


讀來如此簡單而美好

花兩天時間試過裝在以下各VM
CentOS 6.3 x86 (source編譯安裝)
Debian 7.7.0 i386 (source編譯安裝)
Debian 6.0.4 i386 (source編譯安裝)
Debian 7.0.0 i386 (直接從repo用apt-get安裝)

全部同樣的情況:
IPv4幾乎不需要設定就能動
IPv6怎麼設定5060 port都不收封包 (netstat確定有listen)

怎麼送封包給kamailio，只有下面這個系統回應
ICMPv6 Destination Unreachable (Port unreachable)

功力太淺，放棄

(kamailio has put me in hell for two days. too tired now to write in English..... 
my suggestion to the ones who got the same ICMPv6 Port unreachable packet is,
"give it up, now!", this is no fun at all)