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Cisco related stuff and IPv6
Cisco IPv6 routing
ipv6 unicast-routing ipv6 cef
interface FastEthernet0/0 ipv6 enable ipv6 address xx:xx:xx:xx:xx::x/yy
Catalyst enabling IPv6 stack
(config)#sdm prefer dual-ipv4-and-ipv6 default # sh sdm prefer
The current template is "desktop default" template. The selected template optimizes the resources in the switch to support this level of features for 8 routed interfaces and 1024 VLANs. number of unicast mac addresses: 6K number of IPv4 IGMP groups + multicast routes: 1K number of IPv4 unicast routes: 8K number of directly-connected IPv4 hosts: 6K number of indirect IPv4 routes: 2K number of IPv4 policy based routing aces: 0 number of IPv4/MAC qos aces: 512 number of IPv4/MAC security aces: 1K On next reload, template will be "desktop IPv4 and IPv6 default" template.
reload is needed