TCP.SOURCEIP = (IPv4 address or DNS | IPv6 address or DNS)
TCP.SOURCEIP defines the default source IPv4 address and IPv6 address for any outbound IBM® Connect:Direct® connection.
The first positional parameter assigns a global IPv4 address that Connect:Direct can bind to for outbound Processes. The IPv4 default will be obtained from the Hostname assigned to the TCP/IP task.
The second positional parameter assigns a global IPv6 address that Connect:Direct can bind to for outbound IPv6 Processes. The is no default value and the first IPv6 address defined with the TCP/LISTEN initialization parameter will be used as a default.
If TCP.SOURCEIP is not specified or if ANYADDR (0.0.0.0) is specified, the default HOST IP will be used. The IPV4 address can be specified as 1STLISTEN which will cause the first IP in the TCP.LISTEN list to be used. This behavior mimics previous releases. If the first IP in TCP.LISTEN is ANYADDR or 0.0.0 and 1STLISTEN is specified, Connect:Direct for z/OS will bind to 0.0.0.0 which will return and use the first IP in the TCP stack.
Modifiable through MODIFY INITPARMS command: NO