Sorry if these are silly questions, but my brain is really foggy this morning. My questions are for validation of what I think would happen with various iterations of IPCONFIG DATAGRAMFWD.
Scenario 1, I have a single IP address on my z/OS system running to a single network segment out an OSA port. In this scenario, DATAGRAMFWD would have no effect, correct? Scenario 2, I have 2 IP addresses, connected via 2 different OSA adapters to 2 different networks. If I have DATAGRAMFWD, when TCPIP sees a packet coming in on OSA 1 but it has a destination address of a device on network 2, TCP/IP will forward the packet out the other OSA, effectively acting like a router or gateway. If I set it to NODATAGRAMFWD, if TCP/IP sees the same packet on OSA1, it will ignore the packet rather than forwarding it. Is this how it actually works? What I'm looking at is we have a new machine being installed that I need to be able to access from 2 different networks at different times. These two networks need to be isolated from each other and I don't want the mainframe to start acting as a router, passing packets from one to the other. Is there some other configuration setting I need to be aware of, or would the NODATAGRAMFWD be sufficient to keeping them isolated? Yes, the safest solution would be to unplug one of the network cables, and just have 1 plugged in at a time, but the machine is about 300 miles from me. TIA, Rex The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
