![]() ![]() a TLS session establishment, termination and failure of an SSH session. This should be feasible without too much hassle since these information does not travel encrypted. TOE Hardware Version(s) VSP 4000: VSP 4850GTS, VSP 4850GTS-PWR+, VSP 4450GSX. Other more advanced may be to put wirehark/tcpdump to check the negotation parameters. (or not acceptable), the client MUST send a "protocol_version" alertĪn easy approach to debug this, could be to check the logs of both server and application (you did not specify which applications you're using) in verbose mode so you can see the negotation messages. If the version chosen by the server is not supported by the client Negotiation will proceed as appropriate for the negotiated protocol. If any cache memory or cookies cause theERRSSLPROTOCOLERROR, you can easily eliminate the issue by using Chrome’s Incognito mode. If the client agrees to use this version, the Version, it will respond with a ServerHello containing an older Send a normal TLS 1.2 ClientHello, containing (TLS 1.2) inĬlientHello.client_version. This SHOULD be the latest (highest valued) version supported by the client. Check the bold text in the again RFC 5246, Appendix E:Ī TLS 1.2 client who wishes to negotiate with such older servers will clientversion: The version of the TLS protocol by which the client wishes to communicate during this session. It is from documentation: Deploying IP Office as an Enterprise Branch with Avaya Aura Session Manager Password is under 'Add end Entity', but i will try with Enrollment password as you suggested. In the Password field, enter a certificate password. I would say the problem is that your Client application does not accept TLS version downgrade fallback during the negotiation and that's why it works when disabling TLSv1.1 and TLSv1.2. In the Username field, enter the name of the IP Office system. (SeeĪppendix E for details about backward compatibility.)Ī summary of all this is shown in the following diagram: This version of the specification, the version is 3.3. In the client hello and the highest supported by the server. This field will contain the lower of that suggested by the client This video demonstrates how to assign previously installed Avaya Aura System Manager CA Certificates to various Network Elements in Avaya Aura Conferencing 7. Version of the specification, the version will be 3.3 (seeĪppendix E for details about backward compatibility).Īfter the server receives the Client Hello it sends the Server Hello with the chosen SSL/TLS version among other chosen parameters based on the Client Hello information. (highest valued) version supported by the client. The version of the TLS protocol by which the client wishes toĬommunicate during this session. The TLS version is negotiated initially by the client (Client Hello message) specifing the highest version that it supports among other parameters (cipher parameters, etc.). Seems that your application (client side) does not accept version negotiation fallback during the SSL/TLS session establishment.
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