41D-Link DIR-878 User ManualSection 3 - ConfigurationIPv6 in IPv4 TunnelEnter the Remote IPv4 address you will use.Enter the Remote IPv6 address you will use.Displays the Local IPv4 address.Enter the Local IPv6 address you will use.Enter the Subnet Prefix Length supplied by your ISP.Select either Obtain DNS server address or Use the following DNS.If you selected Use the following DNS above, enter the PrimaryDNS Server address.If you selected Use the following DNS above, enter the SecondaryDNS Server address.Enable or disable prefix delegation services.If you disabled DHCP-PD, enter the LAN (local) IPv6 address for therouter.Displays the router’s LAN IPv6 Link-Local Address.Remote IPv4Address:Remote IPv6Address:Local IPv4Address:Local IPv6Address:Subnet PrefixLength:DNS Type:Primary DNSServer:Secondary DNSServer:Enable DHCP-PD:LAN IPv6Address:LAN IPv6 Link-Local Address:You can configure the IPv6 connection to run in IPv4 Tunnel mode. IPv6 over IPv4 tunneling encapsulates IPv6 packets in IPv4 packets so that IPv6packets can be sent over an IPv4 infrastructure.