10-89
Expert Features
Network Layer
10
Illegal Network Source Address
Counter
Illegal Network Source Address is a counter of all illegal network source addresses
over a period of time per segment. A count of all illegal MAC source addresses
displays in the
Overview
counters of Expert View. A threshold for this counter can
be set in Expert Alarms.
Expert Symptom
Illegal network source addresses are automatically logged as expert symptoms. The
Symptom Summary
field provides the illegal address encountered. For example:
Addr=[255.255.255.255]
This symptom can help catch malfunctioning routers or bad addresses generated
due to collisions.
Diagnostic Details
__________________________________________________________________
Problem Description:
A broadcast network address has appeared as a source address.
This is a problem associated with a bad host.
__________________________________________________________________
Probable Cause(s):
1. Someone is transmitting illegal frames using a traffic generator.
2. There may be a faulty adapter card/host.
__________________________________________________________________
Recommended Action(s):
1. Filter on the MAC address to determine the faulty card and replace it.
Summary of Contents for Surveyor
Page 1: ...Surveyor User s Guide ...
Page 30: ...1 10 Surveyor User s Guide ...
Page 40: ...2 10 Surveyor User s Guide ...
Page 88: ...4 28 Surveyor User s Guide ...
Page 184: ...8 16 Surveyor User s Guide ...
Page 204: ...9 20 Surveyor User s Guide ...
Page 207: ...10 3 Expert Features Getting Started with Expert View10 Figure 10 1 Expert Overview Example ...
Page 211: ...10 7 Expert Features Expert Layers 10 Figure 10 3 Expert Application Layer Example ...
Page 368: ...11 34 Surveyor User s Guide ...
Page 390: ...13 12 Surveyor User s Guide ...
Page 416: ...C 4 Surveyor User s Guide ...
Page 426: ...D 10 Surveyor User s Guide ...
Page 454: ...Index 14 Surveyor User s Guide ...