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jwlarger's avatar
jwlarger
Icon for Cirrus rankCirrus
Sep 23, 2021

During which event is SNI evaluated?

Where in the event flow is SNI evaluated? And would it interfere with an iRule that fired on the same event?   i.e. CLIENT_ACCEPTED CLIENTSSL_HANDSHAKE CLIENTSSL_CLIENTCERT CLIENTSSL_CLIENTH...
application delivery
events
LTM
sni
TMOS
jwlarger's avatar
jwlarger
Icon for Cirrus rankCirrus
Sep 24, 2021

Forget about iRules - bit of a red herring. I am familiar with the event order charts and event priorities. None of them include info about SNI.

 

What I want to know is: during which event, during the normal, default course of events. without an iRule involved, is SNI evaluated and matched?

  • Daniel_Wolf's avatar
    Daniel_Wolf
    Icon for MVP rankMVP
    Sep 24, 2021

    You listed five iRule events as examples and you asked if it could interfere with iRules. Hence my assumption was, you are asking for an iRule event.

     

    RFC 6066: In order to provide any of the server names, clients MAY include an extension of type "server_name" in the (extended) client hello.

    Is this the kind of event you are looking for? Or what do you understand as "default course of events"?