Chapter 1: Introduction To The Eiu - Nortel DMS-100 User Manual

Chapter 1: Introduction to the EIU

This chapter describes the Ethernet interface unit (EIU).
Topics in the chapter include the following:
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CAUTION
Possible loss of network security
Using the EIU and a telnet or file transfer protocol (FTP)
session to establish a maintenance and administration
position (MAP) session can introduce a security risk to both
the DMS node and its subtending network.
When establishing and operating a MAP session in this way,
there is limited security for clear text (user identification and
passwords) and for Internet Protocol (IP) addresses for
screening. This limited security makes an open local area
network (LAN) vulnerable to entry by unauthorized persons.
Nortel recommends that the operating company, as a
minimal precaution, integrate intermediate security servers
with encryption to avoid unauthorized access to the switch.
For alternative approaches, contact your Nortel
representative to discuss state-of-the-art secure OA&M data
communications equipment products.
By using the EIU, telnet, and FTP software, the operating
company assumes any and all risks associated with the
implementation and use of this hardware and software.
overview of the EIU
system architecture
hardware description
limitations and restrictions
feature packaging
DMS-100 Family EIU User Guide TELECOM12
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