About vpn error log

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About vpn error log

L6 Presenter


What does "received unencrypted Notify payload(INVALID COOKIE) from IP ...to  ...  ignored "  mean ?



L4 Transporter

Probably the proposals are not matching.

L6 Presenter

Phase1 failing possibly due to traffic being Natted. Check your policies for any address translation between the two gateways.

L5 Sessionator


I  searched for the error on google and found the following


It seems like when the setup is not correct you get the error you mentioned.

Hope this helps.

Thank you


L3 Networker

This indicates mismatch with remote site.

Check proposals for IKE and IPSec. Make sure traffic is not NATed.

If you are using cisco at remote end, select DH-group 'no-pfs' for the proposal.

If tunnel is up and working, these messages may be during the negotiation.

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