Chapter 2 Fault Descriptions

IDS (Intrusion Detection System) Faults

Table 2-3

IDS Faults (continued)

 

 

 

 

 

 

 

 

 

 

 

Fault Description

Explanation

Related Setting

Recommended Action

 

 

 

 

 

 

Client authentication error

The fault threshold set for the

IDS >

Verify that the fault threshold is set

 

rate is Degraded number

degraded state has been exceeded.

Manage IDS Settings

correctly.

 

per minute

 

When this fault is cleared, the

> IDS-802.11x >

If the threshold is set correctly,

 

 

 

Authentication Error

 

 

 

following message displays:

review your network to determine the

 

 

 

Rate

 

 

 

Client association error rate is

action necessary to clear the fault

 

 

 

 

 

 

 

OK.

 

condition.

 

 

 

 

 

 

 

 

 

Client authentication error

The fault threshold set for the

 

 

 

 

 

 

rate is Overloaded number

overloaded state has been

 

 

 

 

 

 

per minute

 

exceeded.

 

 

 

 

 

 

 

 

When this fault is cleared, the

 

 

 

 

 

 

 

 

following message displays:

 

 

 

 

 

 

 

 

Client association error rate is

 

 

 

 

 

 

 

 

OK.

 

 

 

 

 

 

 

 

 

 

 

 

Client TKIP

 

A wireless client has detected a

IDS >

Occasionally MIC failures can occur

 

RemoteMICFailure is

MIC failure. The MIB value that

Manage IDS Settings

during key rotation. To diagnose the

 

detected

 

is polled is

> General IDS

problem, you should:

 

 

 

cDot11WidsTkipRemoteMicFail

Settings >

Check the IOS version.

 

 

 

ures.

TkipRemoteMicFailu

 

 

 

Enable 802.1x logs on the AP.

 

 

 

When this fault is cleared, the

reClient

 

 

 

 

Perform an SNMP walk of

 

 

 

following message displays:

 

 

 

 

There is no TKIP

 

cDot11WidsProtectFailClientTa

 

 

 

RemoteMICFailure detected.

 

ble to determine which clients

 

 

 

 

 

are reporting the TKIP MIC

 

 

 

 

 

failure. If just one client is

 

 

 

 

 

reporting the failure, it could be

 

 

 

 

 

a client issue

 

 

 

 

 

 

EAPOL FLOOD is

The fault threshold has been

IDS >

Verify that the fault threshold is set

 

detected (Flood count:

exceeded.

Manage IDS Settings

correctly.

 

floodcount)

 

When this fault is cleared, the

> General IDS

If the threshold is set correctly,

 

 

 

Settings > EAPOL

 

 

 

following message displays:

review your network to determine the

 

 

 

Detection

 

 

 

There is no EAPOL Flood

action necessary to clear the fault

 

 

 

 

 

 

 

detected.

 

condition

 

 

 

 

 

 

Excessive Action Frames

The fault thresholds been

IDS > Manage IDS

Verify that the fault threshold is set

 

in Channel: channel

exceeded.

Settings > General

correctly.

 

[Frames:

 

When this fault is cleared, the

IDS Settings >

If the threshold is set correctly,

 

framecount,Interval:wind

Excessive

 

following message displays:

review your network to determine the

 

owsize]

 

Management Frame

 

 

Excessive Action Frames not

action necessary to clear the fault

 

 

 

Detection

 

 

 

present in Channel.

condition.

 

 

 

 

 

 

 

 

 

 

Excessive Action Frames

The fault thresholds been

IDS > Manage IDS

Verify that the fault threshold is set

 

from STA: station

exceeded.

Settings > General

correctly.

 

[Frames:

 

When this fault is cleared, the

IDS Settings >

If the threshold is set correctly,

 

framecount,Interval:wind

Excessive

 

following message displays:

review your network to determine the

 

owsize]

 

Management Frame

 

 

Excessive Action Frames from

action necessary to clear the fault

 

 

 

Detection

 

 

 

STA: station not present

condition.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine

 

 

 

 

 

 

 

OL-8376-01

 

 

 

 

 

2-17

 

 

 

 

 

 

 

 

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Cisco Systems OL-8376-01 manual Floodcount, Framecount,Intervalwind, Owsize