iSeries in a DHCP device environment.

15 pts.
Tags:
iSeries and DHCP network

Our network people want to make the printers in the network all DHCP devices.

How do I get the iseries to recognize the printers without creating a host table entry?

The  DNS servers are listed in CHGTCPDMN but if I ping the device name I don't get a response.



Software/Hardware used:
V6R1 is the current operating system.

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Discuss This Question: 3  Replies

 
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  • TomLiotta
    Do the hosts get registered with the DNS server listed in CHGTCPDMN? Apparently not if the name doesn't resolve; or does ping show that the names aren't resolved? The fact that a ping response isn't received doesn't mean anything beyond a response wasn't received. If ping shows that the names are resolved to IP addresses, that's almost all you need to know from it. The only other thing to know is if a new address is resolved when DHCP assigns a new one. -- Tom
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  • JCG1956

    Thanks Tom.

    I'm not sure I fully uinderstand what you are saying though.

    I can ping the DNS servers and get a response.

    Let me put it this way. If we can only reference a remote output queue by its name - will the AS400 (or should it) go to the DNS server to find it? If it should - then it would appear that it is isn't - so what could the problem be.

    I suppose the other question is - can the AS400 find a device that is not in the Host Table on the AS400 but is on the network with an unknown IP address (initially)? 

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  • TomLiotta

    When you issue ping for a host name, the name must be converted to an IP address. The "name" is never ping'd internally; it always must be the address. If the name can't resolve, you'll see something like this:

    Previous commands and messages:
       > ping some.bogus.name
         Unknown host, SOME.BOGUS.NAME.

    If it does resolve, it'll be more like:

       > ping techtarget.com
         Verifying connection to host system TECHTARGET.COM at address
           206.19.49.137.
         No response from host within 1 seconds for connection verification 1.

    That shows that "techtarget.com" was resolved to an IP address: 206.19.49.137. But even though resolved, there was no response because the route doesn't allow responses. The DNS resolution of the address is a completely separate element. The ping response is irrelevant to your question.

    For your question, the only reasons to use ping are (1) to see if the address resolves and (2) to see if a response is received. A received response tells you if the route allows pings and that the address has a valid host (though it doesn't tell you if the host is the one you want nor if the correct address was resolved). A non-response does not tell you anything other than a response wasn't received because there are many reasons for it.

    A name resolved through DNS is the best way to go for this. So far, I don't know if anything is working or not. A name that can be resolved through DNS should not be in the local hosts table. A name that should be resolved through DNS should not be in the local hosts table. A name that should be, but can't be, resolved through DNS indicates a problem either with the way DNS is configured on your system or with how your organization's DNS server is updated.

    Tom

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