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Chapter 4
Troubleshooting
This chapter introduces the concepts and practices of advanced network
configuration and troubleshooting for the Nortel VPN Router. Its purpose is
two-fold: to provide configuration details to consult when setting up or modifying
the extranet, and to serve as a resource when diagnosing client and network
problems.
Typically, there are three types of problems to address when managing an
extranet:
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As a network administrator, your primary concern is to maintain connectivity. For
extranet access, this means maintaining the secure connections between your
remote users and the private intranet serviced by the VPN Router. Performance is
another area of concern. Paying attention to performance helps you address issues
before they become problems.
Connectivity problems occur when the remote user cannot establish a connection
with areas of their private corporate network. There are several points of failure to
consider when diagnosing connectivity problems. Problems can range from
something as simple as a modem configuration error on the client workstation to a
complex HDLC protocol error on the T1 WAN interface.
connectivity
performance
general
Nortel VPN Router Troubleshooting
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Table of Contents
Troubleshooting
