The driver supports Internet Protocol (IP) addresses in IPv4 and IPv6 formats.

The server name specified in a connection URL, or data source, can resolve to an IPv4 or IPv6 address. For example, the server name DB2Server in the following URL can resolve to either type of address:

jdbc:datadirect:db2://DB2Server:50000;DatabaseName=jdbc;User=test;
Password=secret

Alternatively, you can specify addresses using IPv4 or IPv6 format in the server name portion of the connection URL. For example, the following connection URL specifies the server using IPv4 format: 

jdbc:datadirect:db2://123.456.78.90:50000;DatabaseName=jdbc;User=test;
Password=secret

You also can specify addresses in either format using the ServerName data source property. The following example shows a data source definition that specifies the server name using IPv6 format:

DB2DataSource mds = new DB2DataSource();
mds.setDescription("My DB2DataSource");
mds.setServerName("[ABCD:EF01:2345:6789:ABCD:EF01:2345:6789]");
mds.setPortNumber(50000);
...
Note: When specifying IPv6 addresses in a connection URL or data source property, the address must be enclosed by brackets.

In addition to the normal IPv6 format, the drivers support IPv6 alternative formats for compressed and IPv4/IPv6 combination addresses. For example, the following connection URL specifies the server using IPv6 format, but uses the compressed syntax for strings of zero bits:

jdbc:datadirect:db2://[2001:DB8:0:0:8:800:200C:417A]:50000;
DatabaseName=jdbc;User=test;Password=secret

Similarly, the following connection URL specifies the server using a combination of IPv4 and IPv6:

jdbc:datadirect:db2://[0000:0000:0000:0000:0000:FFFF:123.456.78.90]:
50000;DatabaseName=jdbc;User=test;Password=secret

For complete information about IPv6, go to the following URL:

http://tools.ietf.org/html/rfc4291#section-2.2