On Mon, 7 Jan 2002, Francis Dupont wrote:

>    Nothing prevents from applying some kind of RR tests to HAO (without BU) 
>    use too.  The HAO implementation would just be a .. little .. more 
>    complicated.. but then again it hasn't been defined in the spec anyway.
>    
> => I believe the ".. little .. more complicated.." is a joke, isn't it?

Of course. :-)

[snip]

>    I won't get into this more here, because I must say I agree almost 100%
>    with comments from Pekka Nikander, Jari Arkko et al. (You should be very,
>    very afraid if you ever venture in Finland, Francis ;-).
>    
> => so you agree to kill triangular routing?

What's the point of it, really?

If you don't want routing optiomization, nothing prevents you from
establishing tunnels to your home agent: no need for HAO etc. either then.  
This is probably better for TCP and the like which like symmetric
propagation properties.

>    One point I've made before: perhaps the check is trivial, but IMO _the
>    most important thing_ is that *every* site could easily check from
>    incoming packets with HAO, whether the HAO is is spoofed to belong to
>    *destination site in question* or some other site the destination site
>    trust at some level.
>    
> => so the easiest solution for someone which doesn't want to implement
> or enable RO is just to drop HAOs. In France we have an expression for
> that: "la politique du pire".

Sure, if that only means the connections will break if the MN moves.

-- 
Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords

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