[LTP] [PATCH 2/2] network/route: Rewrite route-change-gw into new API

[Petr Vorel]

Hi Alexey,

> > > > don't remember why the rewritten test is
> > > > not using background traffic and not changing gateway anymore?
> > > The current implementation was based on your suggestion for route-change-dst [1] (I'll
> > > mention that in commit message), which uses ns-udpsender.  The other patch [2] is
> > > changing gateway.
> 
> > > Tests used ns-udpsender in previous implementation and we decided to keep it as  use
> > > background traffic isn't sufficient enough [3].
> 
> > > But ns-udpsender isn't good enough, as it doesn't check whether destination receive it [4].
> > > And indeed you can pass it to any destination and it will not fail, e.g.:
> > > ns-udpsender -f 4 -D 1.2.3.4 -p 1 -o -s 1472
> 
> > > I guess we need to write another helper, which will listen for packets on remote side.
> > > Any recommendations/ideas on it?
> 
> It would be good to have this helper in order to extend the tests.
> Not sure if it can be used other than here...
Yes, I expect it to be suitable just for these 3 route tests.

> The other option is to configure a host on the other end as well,
> so that we get responses, and use the standard tools.
Sorry, don't understand this idea. Which tools do you mean? Some helper from
tst_net.sh?
Thanks for info.

Kind regards,
Petr