Francis, I agree with the drawback you see and it's not ideal. But I also think the whole flow label story was inconsistent and we finally have concensus on how we want to use it. Given the fact that it is immutable, it makes a lot of sense to protect it.
The benefit depends on the application. In cases where the value of the flow label is used for any type of decision making related to routing or QoS (in an end host) it is very important to make sure that it was not modified by MITM. Today there is no way of knowing this. I have several ideas in mind for using the flow label. One of those was published in the flow movement draft. So if the above is too abstract please see draft-soliman-mobileip-flow-move for an example. Hesham -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, September 10, 2004 11:12 AM To: Soliman, Hesham Cc: Brian Haberman; [EMAIL PROTECTED] Subject: Re: AH and flow label In your previous mail you wrote: I agree with Brian. I'd like to see it protected. => can you explain what should be the benefits? because today I can see only one major drawback: gratuitous incompatibility with current implementations. [EMAIL PROTECTED] =========================================================== This email may contain confidential and privileged material for the sole use of the intended recipient. Any review or distribution by others is strictly prohibited. If you are not the intended recipient please contact the sender and delete all copies. =========================================================== -------------------------------------------------------------------- IETF IPv6 working group mailing list [EMAIL PROTECTED] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
