C-24

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2
OL-29168-01
AppendixC Troubleshooting
Troubleshooting the Appliance
•

Duplicate IP Address Shuts Interface Down, page C-27

Cannot Access the Sensor CLI Through Telnet or SSH

If you cannot access the sensor CLI through Telnet (if you already have it enabled) or SSH, follow these

steps:

Step 1

Log in to the sensor CLI through a console, terminal, or module session.

Step 2

Make sure that the sensor management interface is enabled. The management interface is the interface

in the list with the status line

Media Type = TX

. If the Link Status is

Down

, go to Step 3. If the Link Status

is

Up

, go to Step 5.

sensor# show interfaces
Interface Statistics
Total Packets Received = 0
Total Bytes Received = 0
Missed Packet Percentage = 0
Current Bypass Mode = Auto_off
MAC statistics from interface GigabitEthernet0/1
Media Type = backplane
Missed Packet Percentage = 0
Inline Mode = Unpaired
Pair Status = N/A
Link Status = Up
Link Speed = Auto_1000
Link Duplex = Auto_Full
Total Packets Received = 0
Total Bytes Received = 0
Total Multicast Packets Received = 0
Total Broadcast Packets Received = 0
Total Jumbo Packets Received = 0
Total Undersize Packets Received = 0
Total Receive Errors = 0
Total Receive FIFO Overruns = 0
Total Packets Transmitted = 0
Total Bytes Transmitted = 0
Total Multicast Packets Transmitted = 0
Total Broadcast Packets Transmitted = 0
Total Jumbo Packets Transmitted = 0
Total Undersize Packets Transmitted = 0
Total Transmit Errors = 0
Total Transmit FIFO Overruns = 0
MAC statistics from interface GigabitEthernet0/0
Media Type = TX
Link Status = Up
Link Speed = Auto_100
Link Duplex = Auto_Full
Total Packets Received = 944333
Total Bytes Received = 83118358
Total Multicast Packets Received = 0
Total Receive Errors = 0
Total Receive FIFO Overruns = 0
Total Packets Transmitted = 397633
Total Bytes Transmitted = 435730956
Total Transmit Errors = 0
Total Transmit FIFO Overruns = 0
sensor#