HP OpenVMS Systems

Controller-Unique Addresses in DECnet and IP?

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The Question is:

 
We have a Alpha that has a FDDI card and an ehternet.  Should the fddi
and the ethernet have their own seperate decnet node #?
Right now the ethernet has a node # but the fddi does not.  How would
one go about defining a seperate node # number for the fddi?
 

The Answer is :

 
  IPv4 requires unique addresses per card.  With IPv6, things get rather
  easier in the IP space, as a result of various improvements in the IP
  configuration and setup process have been made part of the standard.
 
  Unique addresses are not available (per-controller) with DECnet Phase IV,
  all controllers use the same address.  This means that multiple network
  controllers cannot be connected to the same LAN segment or to a set of
  bridged LAN segments -- one or more routers must be configured "between"
  the controllers, so that the two controllers cannot directly "see" each
  other.
 
  With DECnet-Plus, the controller address is used, and there is no need
  to assign a unique address.

  

     

     
answer written or last revised on ( 16-JUL-1998 )
     
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