Re: draft-ietf-ipsec-notifymsg-00.txt (long)

["Scott G. Kelly" <[e-mail]>]

Sheila Frankel wrote:
> 
> Hi Scott,
> 
>         One minor clarification:
> 
> >> >2.30 UNEQUAL-PAYLOAD-LENGTHS
> >> >
> >> > The UNEQUAL-PAYLOAD-LENGTHS error message may be used to communicate
> >> > that message length in the ISAKMP header does not match the sum of
> >> > the actual payload lengths.
> >>
> >> This also applies in the case where the message length in the ISAKMP
> >> header
> >> does not match the length of the message that was actually received.
> >> It should
> >> probably also apply to other length-related anomalies.
> >>
> >
> >I don't understand the difference between the text and what you say
> >here. Please clarify.
> >
> 
> The 2 cases that I think this message should cover are:
> 1) The message length in the ISAKMP header accurately reflects the total
> size of the received packet, but the sum of the individual payload lengths
> (in the Generic Payload Headers) does not match the total message length.
> (This often happens when a packet does not decrypt properly - IV problems,
> etc.)
> 2) The message length in the ISAKMP header does not match the size of the
> received packet.
> 
> Sheila

I get it now - thanks.

Scott