/mcpIPv6 Configuration Use the Ethernet Ipv6 Configuration page to enable or disable IPv6 address. To enable or disable IPv6 address, follow this procedure: Step 1 From the Cisco Unified Operating System Administration page, navigate to Settings > IP > Ethernet Ipv6. Step 2 To enable or disable IPv6 address, check or uncheck the Enable IPv6 checkbox. Step 3 Run the CLI command IPv6 Address →show network ipv6 settings to determine whether IPv6 is enabled or disabled. If the Enable IPv6 checkbox is enabled, select an option: • Router advertisement — to fetch IPv6 from the router • DHCP — select the DHCP radio button for DHCPv6 server to issue a IPv6 address • Manual entry — to manually enter the IPv6 address Step 4 Enter the values for IPv6 Address, Subnet Mask, and the Default Gateway fields. For example, if IPv4 address is aa:bb:cc:dd, then IPv6 address must be in (2001:aa:bb:cc::dd) format. Step 5 To update the changes, check the Update with Reboot check box. Step 6 Click Save button to save the changes and reboot the server. What to do next If you have: • enabled IPv6 address, then add the IPv6 address in the Unified CCX Administration page immediately after server is restarted. • disabled IPv6 address, then remove the IPv6 address in the Unified CCX Administration page immediately after server is restarted. For more information, see the Access Server Menu chapter in Cisco Unified Contact Center Express Administration and Operations Guide , available here: https://www.cisco.com/c/en/us/support/customer-collaboration/unified-contact-center-express/ products-maintenance-guides-list.html View Publisher IP Settings You can view the IP address of the first node or publisher for the node on the subsequent node. Update the values in the fields only if you are changing the IP address. For detailed instructions about changing the IP address of servers in a cluster, see the Cisco Unified CCX Administration Guide. Note To view the publisher IP settings, follow this procedure: From the Cisco Unified Operating System Administration window, navigate to Settings > IP > Publisher. Cisco Unified Operating System Administration Guide for Cisco Unified CCX and Cisco Unified IP IVR, Release 12.5(1) SU3 16 Settings IPv6 Configuration