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Re: 19990712: LDM problems with new IP scheme

On Mon, 12 Jul 1999, Unidata Support wrote:

> 
> ------- Forwarded Message
> 
> >To: <address@hidden>
> >From: "J. Christopher Clarke" <address@hidden>
> >Subject: LDM problems with new IP scheme
> >Organization: NIU
> >Keywords: 199907121909.NAA23778 LDM IP
> 
> Hello folks,
> 
>       A couple of weeks ago, NLU switched to dynamic allocation
> and internal multiplexing of IP addresses.

Chris,

The LDM can't deal with dynamic allocation and internal multiplexing of IP
addresses because the connections are persistent and can last up to weeks.
If your LDM/machine stops and gets a new IP, most likely the downsteam,
upstream nodes will have a hard time getting the correct IP.


  During the conversion, our
> LDM server stopped being able to get a good FEEDME; no one was
> accepting us.   I assume the problem has to do with the DNS servers.
> We are using an internet accessable IP.  Do you have any idea
> why or LDM is not working properly?  We were able to get it working
> when we replaced the new IP number with the old IP number in
> our DNS server, if that helps.  
> 

That was because the old IP number was cached up/down(streams) nodes.

> Please let me know whatever information you need to help with 
> question.  I'll ask our network folks.
> 
Tell your network folks that you need a static IP number or you will
continue to have problems.

Robb...

> Thanks for you help,
> 
> Chris
> 
> _____________________________________________________
> 
> J.  Christopher Clarke                address@hidden    
> Assistant Professor  
> Northeast Louisiana University
> Dept. of Geosciences                     
> _____________________________________________________
> 
> "There is such a high wind blowing, I won't get to sleep tonight. 
> I think that warm wind feels alright."
> _____________________________________________________
>  
> 
> 
> ------- End of Forwarded Message
> 

===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================