Thanks for writing in.
The Catalyst 3750 supports IPv6 routing in hardware for maximum performance. As network devices grow and the need for larger addressing and higher security become necessary, the Catalyst 3750 will be ready to meet the requirement. This is mentioned at the link below.
However, currently the software does not support IPv6. Specific code that will support IPv6 has not been determined yet, but is targeted to be published on CCO in early 2005.
This image is now available and includes IPv6 support:
You can get it here:
and review the release notes here:
I am hoping to get the chance to test this soon but all the 3750s we have here are in use at the moment.
Yes you can deny all ipv6 traffic and yes ipv4 acls can exist no problem with ipv6 they are applied differently to the interface
This will show you how to apply ipv6 acls , both ip access-group and traffic-filter can be applied to the same physical/;logical interface