An animal control HQ has a WAN Edge behind NAT that cannot present a public TLOC the way a directly addressed Edge can. Which SD-WAN construct helps that constrained attachment still participate in the overlay?
Select an answer to reveal the explanation.
Short Explanation
TLOC extension is like borrowing a neighbor’s driveway when your own curb cut is blocked by NAT. Another router extends the transport color so the tucked-away Edge can still form tunnels. Killing OMP or inventing STP toward the ISP does not solve constrained underlay attachment.
Full Explanation
TLOC extension allows a router to extend a transport locator for a WAN Edge that cannot directly attach or advertise that underlay endpoint—common behind NAT or awkward handoffs. The extended TLOC lets the constrained Edge participate in overlay tunnels using the helper’s reachability. Disabling OMP removes overlay routing rather than fixing attachment. STP and turning the Edge into a core BGP RR are unrelated to SD-WAN TLOC design.