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Do Cisco deskphones support EAP-TLS Session Resumption?

Nadav
Level 7
Level 7

Hi everyone,

 

I've configured session resumption for EAP-TLS on my authentication server and yet each authentication includes swapping server and client certificates. During session resumption this isn't supposed to occur. According to the RFC, both supplicant and authentication server must support SR for it to work.

Every Client Hello sent from the supplicant (cisco 78xx phone) to the authentication server includes a session ID length of 0. Session resumption is supposed to use the previous session ID.

 

Any chance this feature isn't supported on 78xx phones? Perhaps this is a bug which was fixed in a recent firmware release?

Thanks in advance!

1 Reply 1

Nadav
Level 7
Level 7

Does anyone know whether session resumption is supported and how to enable it if so?