using the received source address as destiantion locator (was RE: architecture draft)

["marcelo bagnulo" <mbagnulo@ing.uc3m.es>]

> >   "While the destination address is that of R, what
> >    source address should the local host use? There are two implications
> >    for this choice. Firstly the remote host will, by default use this
> >    source address as the destination address in its response, and hence
> >    this choice of source address will direct the reverse path from R to
> >    the local host."
> >
> > While I agree that doing this sounds reasonable, there is no
> > requirement that this should be the case.
>
> I can't think of a scenario where the same would not be true, even if
> this was not a requirement. You need the src address to map to the
> communication stream in one way or the other. Unless I am to tried.

I guess that there could be security issues with this. I mean, if the source
address used will be used as destiantion address, then the sending host has
a simple way to redirect the reply packets to another host and produce for
instance a flooding attack.

Regards, marcelo