Cisco ASA Version 8.3

Cisco’s latest ASA software version adds significant functionality
IPv6 LAN-to-LAN Manually-Configured TunnelsWhile many of you may not be migrating to IPv6 right now you should still be forming your IPv6 transition strategy today. One of those strategies may involve creating a tunnel through your lame IPv4-only service provider to an ISP that has IPv6 capabilities. If you have a router outside your firewall then this is where you would most-likely configure this tunnel. However, if you have an environment where your handoff to your current ISP is the outside Ethernet interface on your ASA, now you can configure an IPv6 LAN-to-LAN tunnel.

IPv6-Enabled Stateful Failover
Early adopters of IPv6 on their ASAs have been familiar with this limitation for a while now. In release 8.2(1) and earlier, there were limitations on how you could configure an HA pair of ASA firewalls that had IPv6-addressed interfaces. The new version eliminates these issues and allows interfaces using IPv6 addresses to perform in the stateful active/passive failover.

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