CICS Transaction Gateway V5 The WebSphere ... - IBM Redbooks

52 CICS Transaction Gateway V5
However, if you do use a DNS entry to resolve the TCP62 host name, you will
most likely need to create a new subdomain since the SNA network name
(USIBMSC) is prefixed onto the domain name suffix to form a new domain
(USIBMSC.ITSO.IBM.COM) in which the LU name (SCSCPJA1) is located.
Tip: If you are using the hosts file to resolve the z/OS host name, there is no
reason why the domain name suffix should match the TCP/IP network name
(itso.ibm.com). However, we used this to simplify our configuration.
Testing the configuration
After we installed and configured the software components, we tested our
configuration as follows:
1. Pinged the TCP/IP connection to the z/OS system using our AnyNet host
name SCSCPJA1.USIBMSC.ITSO.IBM.COM as shown in Example 3-4.
Example 3-4 Ping to check host name
C:\>ping SCSCPJA1.USIBMSC.ITSO.IBM.COM
Pinging SCSCPJA1.USIBMSC.ITSO.IBM.COM [9.12.6.6] with 32 bytes of data:
Reply from 9.12.6.6: bytes=32 time=110ms TTL=52
Reply from 9.12.6.6: bytes=32 time=120ms TTL=52
Reply from 9.12.6.6: bytes=32 time=120ms TTL=52
Reply from 9.12.6.6: bytes=32 time=120ms TTL=52
2. Checked that the port number 397 is listening at our host.
We used a shareware product called ScanPort to scan the ports in use on our
z/OS system. The output from our scan is shown in Figure 3-5 on page 53.
Using ScanPort, we can see that port 397 is in use on our host at address
9.12.6.6. You may note that the Detail field tells us that this is registered as
the MPTN port on our local machine. Multi-Protocol Transport Network
(MPTN) is the network transport used by TCP62 and AnyNet to send LU 6.2
packets over an IP network.
If you wish to use the ScanPort utility, it can be downloaded from the following
Web site:
http://www.dataset.fr/eng/scanport.html