Re: [Ipsec] Applications over IPsec

Stephen Kent <kent@bbn.com> Tue, 18 April 2006 14:25 UTC

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Date: Tue, 18 Apr 2006 09:53:21 -0400
To: Vishwas Manral <vishwas.ietf@gmail.com>
From: Stephen Kent <kent@bbn.com>
Subject: Re: [Ipsec] Applications over IPsec
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At 6:09 PM -0700 4/17/06, Vishwas Manral wrote:
>Hi Stephen,
>
>I see issues in drafts using IPsec then:
><http://www.ietf.org/internet-drafts/draft-ietf-ospf-ospfv3-auth-08.txt>http://www.ietf.org/internet-drafts/draft-ietf-ospf-ospfv3-auth-08.txt 
>states that transport mode is a MUST and Tunnel mode is a MAY. This 
>is more related to RFC4301 though.
>
>Regarding the algorithms to be supported for ESP and AH(RFC4305), I 
>will add a clear recommendation for applications to use.
>
>Thanks,
>Vishwas


yes, I am aware of the OSPFv3 security I-D.  The MUST vs. MAY re 
tunnel and transport modes does not bother me.  These folks are 
defining what an OSPF router has to do as a HOST in the routing 
environment, not as a GATEWAY. The same would be tyrue if one 
employed IPsec to protect BGP sessions.

The bigger problem is that OSPF needs multicast support and we don't 
have what they need.  The MSEC WG did not provide the necessary 
extensions to the SPD and SAD to accommodate multicast uses ala OSPF. 
Thus the OSPF folks tried to make do with what was defined, and the 
result is not pretty.

Steve
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