Using the default route via underlay
If RIA functionality is not required, it is enough to only keep the default route by way of the "underlay" zone only:
- Edge-to-Internet traffic will be able to breakout locally, using this default route.
- Edge-to-Hub and Edge-to-Edge traffic will use the specific routes learned through BGP.
No other routing configuration is needed.
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If any other destination exists that must be reached through the overlays (either Internet destination or a legacy site outside the SD-WAN solution), you must ensure that a valid route to that destination exists through the required overlay. This route can be either learned dynamically or configured statically. |