Re: question concerning traceroute?

[alex () yuriev com]

> > > > > According to definition, is should take the same path, but are there any
> > > > > other cases that I should be aware of?
> > > >
> > > > According to the definition, it is going to show you the path the packets
> > > > took from you to the destination, not from the destination back.
> > >
> > > Unless you did "- g",
> >
> > Not correct. -g specifies loose source routing on the way *there*, not back.
>
>       I think the intention was to indicate that you can
> traceroute -g <remote-router-before-host> <your-local-ip>
>
>       to get the path to and back.  -g requires an argument obviously.


That, obviously, is correct. 

        However, the remote ip in this case is your local IP, so you are
still getting a path to the destination.
        
        Even more importantly, LSR relies on every router on a forward path 
between <your-local-ip> and <remote-router-before-host> allowing LSR, which
is an invalid assumption.


Thanks,
Alex