Hi Joel,

> The third question is actually the most important.  Given 
> that operators 
> would ahve to choose to enable this new behavior, is there any 
> indication that they would do so?  I have heard reports that some 
> operators have started turning off IGP authentication, or 
> using it only 
> as a stronger packet checksum.  In either case, this does not 
> add value 
> for those operators.

http://www.ietf.org/id/draft-jakma-ospf-integrity-00.txt should work for 
operators who are only turning on OSPF authentication as a substitute for a 
stronger packet checksum.

I had posted a survey on nanog (we had also exchanged a mail on this) on the 
same and while I only got 7 responses, 4 of those stated that they were indeed 
using IGP crypto only to get a better checksum mechanism. 

Cheers, Manav

> 
> Yours,
> Joel M. Halpern
> 
> On 10/11/2010 9:09 AM, Bhatia, Manav (Manav) wrote:
> >
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