300-415 · Question #102
Refer to the exhibit. The tunnel interface configuration on both WAN Edge routers shown below: Which configuration for WAN Edge routers will connect to the Internet?
The correct answer is B. vpn 0 interface ge0/1 ip address 172.16.13.3/24 ! ip route 0.0.0.0/0 172.16.13.1. To connect to the Internet, a WAN Edge router's transport interface IP address must reside in the same subnet as the gateway IP address specified in the default static route.
Question
Exhibit
Options
- Avpn 0 interface ge0/1 ip address 172.16.15.5/24 ! ip route 0.0.0.0/0 172.16.13.1
- Bvpn 0 interface ge0/1 ip address 172.16.13.3/24 ! ip route 0.0.0.0/0 172.16.13.1
- Cvpn 0 interface ge0/1 ip address 172.16.13.3/24 ! ip route 0.0.0.0/0 172.16.8.1
- Dvpn 0 interface ge0/1 ip address 172.16.15.5/24 ! ip route 0.0.0.0/0 172.16.8.1
How the community answered
(33 responses)- A3% (1)
- B76% (25)
- C15% (5)
- D6% (2)
Why each option
To connect to the Internet, a WAN Edge router's transport interface IP address must reside in the same subnet as the gateway IP address specified in the default static route.
The interface IP `172.16.15.5/24` and the default route's next-hop `172.16.13.1` are in different subnets, making the next-hop unreachable.
The interface `ge0/1` is configured with an IP address `172.16.13.3/24`, and the default route's next-hop is `172.16.13.1`. Both addresses belong to the same `172.16.13.0/24` subnet, ensuring the next-hop is directly reachable for internet forwarding.
The interface IP `172.16.13.3/24` and the default route's next-hop `172.16.8.1` are in different subnets, making the next-hop unreachable.
The interface IP `172.16.15.5/24` and the default route's next-hop `172.16.8.1` are in different subnets, making the next-hop unreachable.
Concept tested: WAN Edge internet routing configuration
Source: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/m-sdwan-basic-config.html
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