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Answer: One of the VPN sessions is configured incorrectly.
The most likely cause of the problem is that one of the VPN sessions is configured incorrectly, as indicated by the 'no-proposal-chosen' lines in the VPN logs. This configuration error prevents the VPN from establishing a connection, which in turn prevents the BGP session from being established between the on-premises router and the Cloud Router. The other options do not directly address the specific symptoms described, such as the 'no-proposal-chosen' error and the failure to establish a BGP session on one of the connections.
Author: LeetQuiz Editorial Team
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Your on-premises data center has two routers connected to Google Cloud via separate VPNs, but all traffic flows through a single VPN instead of load-balancing across both connections as intended.
During troubleshooting, you observe the following:
no-proposal-chosen errors during connection attempts.What is the most likely cause of this issue?
A
One of the VPN sessions is configured incorrectly.
B
A firewall is blocking the traffic across the second VPN connection.
C
You do not have a load balancer to load-balance the network traffic.
D
BGP sessions are not established between both on-premises routers and the Cloud Router.
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