Finisar Surveyor, User Manual

Page: 262 / 454

10-58
Surveyor
User’s Guide
Network Layer
Duplicate Network Address
A separate table showing duplicate network addresses is available. Press the
button on the Data View or Capture View toolbar to see this table.
Counter
Duplicate Network Address is a counter of all duplicate network addresses over a
period of time per segment. A count of all duplicate network addresses displays in
the
Overview
counters of Expert View. A threshold for this counter can be set in
Expert Alarms for all duplicate network addresses.
IP address
0.0.0.0
is not counted as a duplicate address.
Expert Symptom
Duplicate network addresses are automatically logged as either “Duplicate IP
Address” or “Duplicate IPX Address” expert symptoms. The
Symptom Summary
field provides information about the duplicate IP or IPX address. For example:
Addr=[206.250.228.67]
Diagnostic Details
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Problem Description:
This network address has multiple MAC station address associations.
This is a serious problem if the associated MAC stations are not routers.
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Probable Cause(s):
1. An existing network address has been assigned to a new machine without
verification.
2. An old (discarded) machine using this address has been re-introduced into the network.
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Recommended Action(s):
1. Change the network address of one or more hosts so that there are no
duplicates.