[LTP] [PATCH 1/2] runtest/smoketest: Remove intermittent failed test case route4-change-dst

[Petr Vorel]

...
> > Did 75184c30a ("lib/tst_net.sh: disable ipv6_dad work on test interfaces")
> > fixed your problem? I'd actually like to route4-change-dst in smoketest to
> > have it as a detection DAD issue is working.

> 75184c30a is fixing ipv6. From the log, it seems the error happens
> in ping, when it once again tried to bind to 10.0.0.2 as a source
> address (with -I option)...

Ah, right, I'm sorry for overlooking this.
I squashed commits (reason to add ping tests is because we removed route test),
updated commit message and merged.

Thank you both!

Kind regards,
Petr