Configuring Name Service Support for IPv6

This section describes how to configure the DNS and NIS name services to support IPv6 services.

For full details for administering DNS, NIS, and LDAP, refer to the System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP).

How to Add IPv6 Addresses to DNS

1. Log in to the primary or secondary DNS server as Primary Administrator or as superuser.

   The Primary Administrator role includes the Primary Administrator profile. To create the role and assign the role to a user, see Chapter 2, Working With the Solaris Management Console (Tasks), in System Administration Guide: Basic Administration.

2. Edit the appropriate DNS zone file by adding AAAA records for each IPv6-enabled node:

   host-name  IN   AAAA     host-address

3. Edit the DNS reverse zone file and add PTR records:

   host-address IN   PTR   hostname

   For detailed information on DNS administration, refer to System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP).

Example 7-15 DNS Reverse Zone File

This example shows an IPv6 address in the reverse zone file.

$ORIGIN    ip6.int.    
8.2.5.0.2.1.e.f.f.f.9.2.0.0.a.0.6.5.2.9.0.0.0.0.0.0.0.0.2.0.0.0 \
    IN        PTR        vallejo.Eng.apex.COM.

Adding IPv6 Addresses to NIS

In Solaris 10 11/06 and earlier releases, two maps were added for NIS : ipnodes.byname and ipnodes.byaddr. These maps contained both IPv4 and IPv6 host name and address associations. Tools that are aware of IPv6 used the ipnodes NIS maps. The hosts.byname and hosts.byaddr maps contained only IPv4 host name and address associations. These maps are unchanged so that they can facilitate existing applications. Administration of the ipnodes maps is similar to the administration of the hosts.byname and hosts.byaddr maps. For Solaris 10 11/06, it is important that when you update the hosts maps with IPv4 addresses, the ipnode maps are also updated with the same information.

For instructions on administering NIS maps, refer to Chapter 5, Setting Up and Configuring NIS Service, in System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP).

How to Display IPv6 Name Service Information

You can use the nslookup command to display IPv6 name service information.

1. Under your user account, run the nslookup command.

   % /usr/sbin/nslookup

   The default server name and address appear, followed by the nslookup command's angle bracket prompt.

2. View information about a particular host by typing the following commands at the angle bracket prompt:

   >set q=any
   >host-name

3. Type the following command to view only AAAA records:

   >set q=AAAA
   hostname

4. Quit the nslookup command by typing exit.

Example 7-16 Using nslookup to Display IPv6 Information

This example shows the results of nslookup in an IPv6 network environment.

%  /usr/sbin/nslookup
Default Server:  dnsserve.local.com
Address:  10.10.50.85
> set q=AAAA
> host85
Server:  dnsserve.local.com
Address:  10.10.50.85

host85.local.com      IPv6 address = 2::9256:a00:fe12:528
> exit

How to Verify That DNS IPv6 PTR Records Are Updated Correctly

In this procedure, you use the nslookup command to display PTR records for DNS IPv6.

1. Under your user account, run the nslookup command.

   % /usr/sbin/nslookup

   The default server name and address display, followed by the nslookup command's angle bracket prompt.

2. Type the following at the angle bracket prompt to see the PTR records:

   >set q=PTR

3. Quit the command by typing exit.

Example 7-17 Using nslookup to Display PTR Records

The following example shows the PTR record display from the nslookup command.

%  /usr/sbin/nslookup
Default Server:  space1999.Eng.apex.COM
Address:  192.168.15.78
> set q=PTR
> 8.2.5.0.2.1.e.f.f.f.0.2.0.0.a.0.6.5.2.9.0.0.0.0.0.0.0.0.2.0.0.0.ip6.int

8.2.5.0.2.1.e.f.f.f.0.2.0.0.a.0.6.5.2.9.0.0.0.0.0.0.0.0.2.0.0.0.ip6.int name = 
vallejo.ipv6.Eng.apex.COM
ip6.int nameserver = space1999.Eng.apex.COM
> exit

How to Display IPv6 Information Through NIS

In this procedure, you use the ypmatch command to display IPv6 information through NIS:

• Under your user account, type the following to display IPv6 addresses in NIS:

  % ypmatch hostname hosts ipnodes.byname

  The information about the specified hostname is displayed.

  ---

  Note - Oracle Solaris releases after Solaris 10 11/06 no longer include the ipnodes maps. The IPv6 functionality of ipnodes is now maintained in the hosts maps.

  ---

Example 7-18 IPv6 Addresses Output by the ypmatch Command

For Solaris 10 11/06 and earlier releases, the following sample shows the results of a ypmatch operation on the ipnodes.byname database.

% ypmatch farhost hosts ipnodes.byname
2001:0db8:3c4d:15:a00:20ff:fe12:5286       farhost

How to Display IPv6 Information Independent of the Name Service

This procedure can be used for Solaris 10 11/06 and earlier releases only. For subsequent releases, you can perform the same operation on the hosts database.

• Under your user account, type the following command:

  % getent ipnodes hostname

  The information about the specified host-name is displayed.

Example 7-19 Displaying IPv6 Information in the ipnodes Database

The following sample shows the output of the getent command:

% getent ipnodes vallejo

2001:0db8:8512:2:56:a00:fe87:9aba    myhost myhost
fe80::56:a00:fe87:9aba     myhost myhost