Hi Guillaume,
You can find the log files by navigating to the Ultrix ip address in a web page
Click on the system logs link
Then Select download.
In the zipped Log files you will find the following:
TLS, GVGnative, NVision and Probel external: a file named “thirdpartypackets.log” where you can find all of the External router commands.
Routes: There is also a "rip_packets0.log" where you can find all of the routes that were made. (search for the word route)
Alarm information: "rip_packets0.log" Search for the word Alarm
We are implementing a new Audit.log in a future build that will give you a clearer indication of the routes that were made without having to parse through all the Rip_packets0.log files.this should be available in the next few months.
Hope this helps.
#Ultrix