HP 635n HP Jetdirect Print Servers - Practical IPv6 Deployment for Printing an - Page 11

1 2 3 Figure 5 - Network Trace HP Jetdirect ships with LLMNR enabled by default. If for any reason, the administrator does not want LLMNR to be used, it can be disabled on HP Jetdirect. When LLMNR is supported but disabled, NetBIOS name resolution will result in IPv4 being used. IPv6 Link Local Islands When Microsoft began rolling out Windows NT, DHCP was used to automatically assign IPv4 addresses and the Windows Internet Naming Service (WINS) provided a server based name resolution. This setup is still used today in many environments. Refer to Figure 6 - IPv6 Link Local Islands. Figure 6 - IPv6 Link Local Islands As we can see in Figure 6, IPv4 addresses are being assigned to the various network devices via DHCPv4. We'll assume that the IPv4 Router is acting as a DHCPv4 Relay agent. The DHCPv4 server is also providing options to clients and one of those options is the NetBIOS name server or WINS server option, which provides the IPv4 address of the WINS server. DHCPv4 clients that support WINS will use this option to register their names with WINS as well as lookup names to IPv4 address mappings. WINS only supports IPv4. 11