I feel lack of freedom in selection of IPv6 IOS: as per my experience we start with SRC, then we upgarde to SRC3, then to SRD, now we are running SRD4 on our Cisco7600 with SUP32 and Cisco7600 with RSP720, these all upgrades are because of  some BUG ...

I  have implementated IPv6-Only LAN (wired and Wireless) at our office, and enable the it to browse IPv6 and IPv4 web sites at sametime without any involvement host machine. This is done by  DNS64 and NAT64. Implemenation details and configuration ar...