The firmware v5.6.11 build1700 (GA), i is sufficient and stable for setting up sdwan for various routers.
Hi @athan ,Firmware 5.6 is already end of engineering support and SDWAN feature introduced in version 6.2. Older version use link-monitoring method. New version using SDWAN feature which have more features.I would suggest to upgrade the model/firmware if you require this feature.
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