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Configuring the Junos OS to Disable the Reporting of IP Address and Timestamps in Ping Responses
When you issue the ping command with the record-route option, the Routing Engine displays the path of the ICMP echo request packets and timestamps in the ICMP echo responses by default.
You can configure the Routing Engine to disable the setting of the record-route option in the IP header of the ping request packets. Disabling the record-route option prevents the Routing Engine from recording and displaying the path of the ICMP echo request packets in the response.
- To configure the Routing Engine to disable the setting of the record route option, include the no-ping-record-route statement at the [edit system] hierarchy level:
[edit system]no-ping-record-route;
- To disable the reporting of timestamps in the ICMP echo responses, include the no-ping-time-stamp option at the [edit system] hierarchy level:
[edit system]no-ping-time-stamp;
By configuring the no-ping-record-route and no-ping-timestamp options, you can prevent unauthorized persons from discovering information about the provider edge (PE) router or switch and its loopback address.
