Voyager Reference Guide 657value represents the number of times to retry Unicast Neighbor Discoveryrequests.5. In the GLOBAL NEIGHBOR DISCOVERY SETTINGS field, enter the valuefor the multicast retry limit in the MULTICAST RETRY L IMIT edit box. Thisvalue represents the number of times to retry Multicast NeighborDiscovery requests.6. In the GLOBAL NEIGHBOR DISCOVERY SETTINGS field, enter the valuefor the duplicate address detection retry limit in the DUPLICATEADDRESS DETECTION RETRY L IMIT edit box. This value represents thenumber of times to retry Duplicate Address Detection NeighborDiscovery requests.7. In the PERMANENT NEIGHBOR DISCOVERY ENTRIES field, enter thepermanent IPv6 address for the permanent neighbor discovery destinationin the NEW PERMANENT NEIGHBOR D ISCOVERY ENTRY edit box.8. Click APPLY, and then click SAVE to make your changes permanent.9. To flush current dynamic Neighbor Discovery entries, click the F LUSHbutton in the DYNAMIC N EIGHBOR DISCOVERY ENTRIES field, and thenclick APPLY.IPv6 and IPv4 CompatibilityConfiguring IPv6 in IPv4 TunnelsIf your IPv6 traffic needs to travel through IPv4 networks to reach itsdestination, you need to set up a virtual link by configuring a tunnel.1. Click CONFIG on the home page.2. Click the IPv6 in IPv4 Tunnels link in the IPv6 section.3. Enter the IPv4 address of the local tunnel endpoint in the L OCAL IPV 4ADDRESS edit box.