[Olsr-dev] gateway code

[Ferry Huberts]

On 24-07-12 13:56, Teco Boot wrote:
>
> Op 24 jul. 2012, om 13:26 heeft Henning Rogge het volgende
> geschreven:
>
>> On 07/24/2012 01:24 PM, Ferry Huberts wrote:
>>> On 24-07-12 13:22, Henning Rogge wrote:
>>>> On 07/24/2012 01:15 PM, Teco Boot wrote:
>>>>> Manual interference with unmanaged tunnels is a request for
>>>>> trouble. If there is a side effect on tunnel_down (e.g.
>>>>> removed routes), that is how it is designed. Let's have a
>>>>> clean smart-gw.
>>>>
>>>> At the moment there would be no way to restore the route for
>>>> the tunnel. That is why the mechanism was inside.
>>>>
>>>> Similar for mesh interfaces, if they go up again, OLSRd must
>>>> restore the routes.
>>> So I think I'm going to revert my changes to that code. Agree?
>>
>> I am not sure if it is really needed, but I dislike the idea that a
>> single if-down wrecks your tunnel to the gateway (and most likely
>> your internet connection with it!).
>
> If tunnel goes down, the multi-hop route to nearest gw is taken.
> Could be same gw, then nothing breaks. If another gw is taken, we are
> back to nat_threshold or plain gw routing.
>
> When we have multiple tunnels & conntrack & route policies, we can do
> much better than sticking on far_away gw that was selected long time
> ago. I do not prefer enhancing smart_gw with unneeded bypasses for
> cornercases. Just me.
>
> I'll discuss with Ferry what to do.

We discussed it and we're not reverting the commits.
So we're keeping it the way it is.

If someone is messing about with a tunnel that is under control of olsrd 
then he should expect that olsrd can end up 'confused' and without a 
working gw ;-)

>
> Teco
>
>>
>> What do you think?
>>
>> Henning Rogge
>>
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>>
>

-- 
Ferry Huberts