Re: Authentication Question

[Vishwas Manral <vishwas.ietf at gmail.com>]

Hi Shahram,

I think the sentence is ok in the spec. Yes we should be able to
change Keys as well. I think something related to that is given in the
spec already.

Thanks,
Vishwas

On Mon, Aug 17, 2009 at 6:23 PM, Shahram Davari<davari at broadcom.com> wrote:
> Hi,
>
> For BFD processing, the Base text says:
>
> "If the A bit is set and no authentication is in use (bfd.AuthType is zero), the packet MUST be discarded."
>
> Isn't the bdf.AuthType set based on the A bit? If so then isn't this statement a circular logic? Shouldn't it be changed to:
>
> "If the A bit is set and no authentication is in use (Authentication header is not present), the packet MUST be discarded."
>
>
> And a general question. Since each packet is Authenticated on its own, can Authentication type change in the middle of a Session? Or can some BFD packets be transmitted with Authentication and some without (off course with proper setting of A flag)?
>
> Thanks,
> Shahram
>