[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
2401bis Issue # DD -- Anti-replay notification
Folks,
At present, RFC2407 ("The Internet IP Security Domain of
Interpretation for ISAKMP") defines a REPLAY-STATUS notify message
that IKEv1 can use to tell a peer whether or not it has anti-replay
enabled for a particular SA. (It's chained onto a Quick Mode message
a la RESPONDER-LIFETIME.) The default is to assume anti-replay is
enabled. But this capability is not in IKEv2.
We'd like to propose that IKEv2 also allow the receiver to notify the
sender whether or not anti-replay is enabled. In the case where
anti-replay isn't being supported by the receiver, this would allow
the sender to avoid setting up a new SA when the replay counter rolls
over.
Thank you,
Karen