https://community.cisco.com/t5/network-access-control/eui-64/m-p/2634551#M74644 <P>When I assign an interface address using the interface sub-command <STRONG>ipv6 address 2001:A:A:A::/64 eui-64</STRONG>, does a Duplicate Address Detection (DAD) process occurs to verify it is already not in use?&nbsp;I was thinking that MAC addresses are universally unique, so this process must not require a DAD. Please help.</P> Mon, 11 Mar 2019 05:25:45 GMT bombblaster007 2019-03-11T05:25:45Z https://community.cisco.com/t5/network-access-control/eui-64/m-p/2634551#M74644 <P>When I assign an interface address using the interface sub-command <STRONG>ipv6 address 2001:A:A:A::/64 eui-64</STRONG>, does a Duplicate Address Detection (DAD) process occurs to verify it is already not in use?&nbsp;I was thinking that MAC addresses are universally unique, so this process must not require a DAD. Please help.</P> Mon, 11 Mar 2019 05:25:45 GMT https://community.cisco.com/t5/network-access-control/eui-64/m-p/2634551#M74644 bombblaster007 2019-03-11T05:25:45Z