This article explains why the value for pre-defined application on 15.1X49 series cannot be changed.

In Junos 15.1X49, an error message is shown after attempting to change or edit any value of a pre-defined application; "junos-*".

Example 1

Edit a term of junos-sip.


Example 2

Set a new inactivity-timeout of junos-ftp.

The error message is the expected behavior from Junos 13.3 and higher. It appeared beginning on SRX from Junos 15.1X49. Editing a pre-defined application is NOT allowed.

Take the following steps to create a new custom application.

1. Find the content of a pre-defined application.

root@SRX# show groups junos-defaults applications application junos-sip
term t1 alg sip protocol udp destination-port 5060;
term t2 alg sip protocol tcp destination-port 5060;


2. Create a new one following the content of the original pre-defined application.
   
   
   root@SRX# set applications application My-SIP term t1 alg sip protocol udp destination-port 5060 inactivity-timeout 3600
root@SRX# set applications application My-SIP term t2 alg sip protocol tcp destination-port 5060 inactivity-timeout 3600


3. Verify the newly configured application

   root@SRX# show applications application My-SIP
term t1 alg sip protocol udp destination-port 5060 inactivity-timeout 3600;
term t2 alg sip protocol tcp destination-port 5060 inactivity-timeout 3600;


4. Commit

   root@SRX# commit