5V0-42.21 · Question #23
A service provider assigns two Partner Gateways to a VMware SD-WAN Edge. Which description is correct about default route?
The correct answer is A. A default route 0.0.0.0/0 can be configured as a static route and set to NAT only on the Gateway. Option A is correct because in VMware SD-WAN, a Partner Gateway can have a static route of 0.0.0.0/0 explicitly configured with a NAT-only action, meaning internet-bound traffic from the Edge is NAT'd at the Gateway before exiting to the internet - this is a supported and…
Question
A service provider assigns two Partner Gateways to a VMware SD-WAN Edge. Which description is correct about default route?
Options
- AA default route 0.0.0.0/0 can be configured as a static route and set to NAT only on the Gateway
- BIt default route 0 0 0.010 has been configured for both Gateways, internet traffic originated from
- CWhen handoff is turned off on a Partner Gateway, the Gateway does not advertise a default route
- DThe service provider administrator decides whether the Partner Gateway advertises a default route
How the community answered
(31 responses)- A94% (29)
- B3% (1)
- C3% (1)
Explanation
Option A is correct because in VMware SD-WAN, a Partner Gateway can have a static route of 0.0.0.0/0 explicitly configured with a NAT-only action, meaning internet-bound traffic from the Edge is NAT'd at the Gateway before exiting to the internet - this is a supported and commonly deployed service provider configuration.
Option B is wrong (and appears truncated/malformed in the question itself) - even if both Gateways have a default route configured, traffic routing behavior follows SD-WAN policy and Gateway priority, not a simple dual-path split.
Option C is wrong because the "handoff" setting controls whether the Gateway passes traffic to connected MPLS/private network segments, not whether it advertises a default route - these are independent configurations.
Option D is wrong because it is too vague; the default route advertisement is driven by whether a 0.0.0.0/0 static route is actually configured on the Gateway, not merely by an administrative decision. Configuration is required, not just intent.
Memory tip: Think "A = Advertised via a static route with NAT action" - the keyword combo static route + NAT only is the precise mechanism that makes Option A uniquely correct, distinguishing it from the vague language in D.
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