Hi,
I have some questions regarding Security Agreement RFC 3329
1. If an EndPoint (EP) has negotiated a Security Mechanism with its
Outbound Proxy (OP) using REGISTER
and the lifetime of this security association is X hrs.
What is the behaviour of the OP after the completion of X hrs if the
EP does not renew its registration?
i.e will it send an Error response (494) to any further SIP rqsts
it receives from EP ? or silently discard the packets?
2. The EndPoint (EP) has negotiated a Security Mechanism with its
Outbound Proxy (OP) using OPTIONS / INVITE
and the lifetime of this association is X hrs.
What should be the behaviour of the EP after the completion of X hrs?
a. Should EP send its next SIP rqst with Security-Client as well as
Security-Verify and expect a re-negotiation from OP?
b. Should it only re-new the previously chosen Security Mechanism
and not negotiate again?
3. The EP has successfully completed Sec-Agreement negotiation with OP.
EP later initiates an INVITE with security-verify,
if the OP sends a 494 response to this, what should be the behaviour
at the EP ?
Should it renegotiate ? Should EP check if the new Security-Server
is same as previously sent?
Thanks and Rgds
Rohini Kamath
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