Customized TCP/IP network configurations

This section documents the TCP/IP configuration changes that are made to ADCD for ZVDT.

TCP/IP addressing was symbolized in the system parmlib configuration. A few system symbolic parameters are defined in FEU.Z25C.PARMLIB. If Extended ADCD is used for different purpose, different members are selected. If Extended ADCD is used for the IPL in ZVDT, the member IEASYMAU is selected. Both IEASYMAU and IEASYMNZ contain the same symbolic parameters. However, the default values are different for each environment.

The following sample is taken from the member IEASYMAU, which shows the default values.

SYMDEF(&DYNXCFIPADDRESS.='10.1.1.10')    
SYMDEF(&HOMEIPADDRESS1.='10.1.1.2')      
SYMDEF(&DEFAULTROUTEADDR.='10.1.1.1')    
SYMDEF(&EPHEMERALPORTS.='10000 65534')   
SYMDEF(&GBLRESL.='GBLRESOL')

DYNXCFIPADDRESS: DYNXCFIPADDRESS is the address that is used in the dynamic XCF configuration member ADCD.Z25C.TCPPARMS(ZCXDVIPA). This address needs to be in the same subnet as the TCP/IP home IP address. When an instance is provisioned from a created ADCD image, the value of DYNXCFIPADDRESS will be modified by ZVDT to match the IP address that is specified by the customer.

HOMEIPADDRESS1: HOMEIPADDRESS1 is the main TCP/IP IP address of the z/OS® system, and is referenced in the ADCD.Z25C.TCPPARMS(ZPDTDEV1). When an instance is provisioned from a created ADCD image, the value of HOMEIPADDRESS1 will be modified by ZVDT to match the IP address that is specified by the customer.

DEFAULTROUTEADDR: DEFAULTROUTEADDR is the TCP/IP Gateway address, and is referenced in the ADCD.Z25C.TCPPARMS(ZPDTDEV1). DEFAULTROUTEADDR is typically the zPDT® tunnel interface address. When an instance is provisioned from a created ADCD image, the value of DEFAULTROUTEADDR will be modified by ZVDT to match the IP address that is specified by the customer.

EPHEMERALPORTS: EPHEMERALPORTS defines the ephemeral ports to use for this z/OS system, and is referenced in the ADCD.Z25C.TCPPARMS(PROF3). PROF3 is an %include from the member PROF2.

GBLRESL: GBLRESL defines the Resolver configuration member to select for this IPL, and is referenced in the FEU.Z25C.PROCLIB(RESOLVER).