Frequently asked questions

How to recognise an ISO 9542 ES-IS protocol's MAC address application?

ISO-9542 ES-IS (End System to Intermediate System) is a protocol which provides interaction between end-systems (hosts) and intermediate systems (routers). This protocol is a link layer protocol equivalent of Internet layer's ARP (Address Resolution Protocol).

Summary

Range or Prefix	Application

09:00:2B:00:00:04	All End System Network Entities address
09:00:2B:00:00:05	All Intermediate System Network Entities address

References

https://standards.ieee.org/products-services/regauth/grpmac/public.html

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