Tag Archives: scriptlet

Scriptlet: Find Default Route Interface Names (and a free licence!)

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Today I’m giving you the task of reviewing and improving a small script I’ve written, and one of you will win a free Level 4 RouterOS licence. 

Background: I had need of a script to find the interfaces associated with any default routes in order to create matching firewall entries, and it had to work with RouterOS v6.

This script searches through any default route (dst-address=0.0.0.0/0) and adds it to an array so long as the interface can’t already be found in the array. I don’t often use arrays in MikroTik so the first version has a search function that doesn’t loop through the array, but instead just converts it to a string again to run the find command (Line 8)

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Script Fu – Changing RADIUS server source address

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Just a quick post to show an example of day to day usage of RouterOS scripting.

Goal: We had to change the src-address for a bunch of radius-server listings across 40 MikroTik devices, to match a new pptp-tunnel address. What would’ve been a pain was that the address is different on each device.

Solution: Create a scriptlet to pull the IP into the update (set) routine, ensuring it is formatted correctly for use.

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