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How to block the back door ip address on ePMP radios

Cambium Employee

How to block the back door ip address on ePMP radios

 

Product: ePMP1000

 

Software Versions: 2.6.2, 2.6.1, 2.6, 2.5.2, 2.5.1, 2.5, 2.4.3

 

Issue/Query: Is there a way to disable or block access to the default or backdoor IP 169.254.1.1?

 

Solution: We can disable the back door IP 169.254.1.1 access using the below CLI commands as follows.

 

  • config set networkLanDefaultIP 0.0.0.0
  • config save
  • config apply

 Below is the example and command line output:

 

login as: admin

admin@10.120.200.86's password:

 

  ********************************************

  *      ePMP1000 command line interface     *

  ********************************************

 

ePMP1000_c88d53>

ePMP1000_c88d53>config set networklandefaultip 0.0.0.0

ePMP1000_c88d53>config save

ePMP1000_c88d53>config apply

ePMP1000_c88d53>

 

Applying the above configuration will reboot the Radio for a short period of time and will come back itself, below is the ping drop time out.

 

Ping to AP ip address after applying the changes:

 

How to disable or block the back door IP-1.png 

 

To confirm if the radio default ip address is changed to 0.0.0.0, below is the command:

 

ePMP1000_c88d53>show config

How to disable or block the back door IP-2.png