I am currently working on a project to remove security vulnerability present in the network due to IKE Aggressive mode. Below is my understanding:
1. In aggressive mode, initiator and responder IDs are sent in clear text, as against main mode and this is the vulnerability we are trying to remove.
2. For Site to Site VPNs we can disable the aggressive mode, but this is not possible to achieve in Client to Site VPNs till we are using PSKs.
I am seeking help on below points based upon my understanding:
1. Validation of my understanding
2. In case we go for certificate based authentication instead of using PSKs, can we disable the aggressive mode and remove the vulnerability. If yes, is it a mandate to have a local CA server installed or can we go for a publicly hosted CA server.
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