Refer to the exhibit that shows VPN debugging output.
The VPN tunnel between headquarters and the branch office is not being established.
What is causing the problem?
The Phase-1 encryption algorithms are not matching.
There is no matching Diffie-Hellman Group.
HQ is using IKE v1 and the branch office is using with IKE v2.
There is a mismatch in the ISAKMP SA lifetime.
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