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Re: IBM VPN Bakeoff Issues



Hi Dan,

Daniel Harkins wrote:

<trimmed...>

> > [IP2][AH][ESP][IP1][DATA][TLR]
> >
> > Clearly, the AH and ESP headers are adjacent, yet the modes are
> > different, and should be declared as such in the proposal.
> 
> You mean proposal_s_.
> 
> Proposing AH&ESP to protect tunneled traffic between 2 hosts is different than
> proposing ESP to protect tunneled traffic between 2 hosts (STOP, seperate
> negotiation) and then proposing AH to protect ESP traffic in transport mode
> between the 2 gateways. You can't express the "...protect ESP traffic" part
> of the AH proposal without specific client IDs which would be different than
> the client IDs for the ESP traffic. Since client IDs must be consistant across
> all offers they have to be seperate proposals.

Okay, I see what you mean. So, are you arguing that if someone wants
this construct, that we should, by convention, combine the AH/ESP
proposals using tunnel mode for both?

Scott


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