Duplicate Ip Address Shuts Interface Down - Cisco 4215 - Intrusion Detection Sys Sensor Configuration Manual

Appendix C Troubleshooting
Verify the settings:
Step 4
sensor(config-hos-net)# show settings
network-settings
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sensor(config-hos-net)#

Duplicate IP Address Shuts Interface Down

If you have two newly imaged sensors with the same IP address that come up on the same network at the
same time, the interface shuts down. Linux prevents the command and control interface from activating
if it detects an address conflict with another host.
To verify that the sensor in question does not have an IP address conflict with another host on the
network, follow these steps:
Step 1 Log in to the CLI.
Step 2 Determine whether the interface is up:
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
78-16527-01
host-ip: 10.89.149.238/25,10.89.149.254 default: 10.1.9.201/24,10.1.9.1
host-name: qsensor-238 default: sensor
telnet-option: enabled default: disabled
access-list (min: 0, max: 512, current: 3)
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network-address: 10.0.0.0/8
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network-address: 64.0.0.0/8
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network-address: 171.69.70.0/24
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ftp-timeout: 300 seconds <defaulted>
login-banner-text: <defaulted>
Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 5.0
Troubleshooting the 4200 Series Appliance
C-7