On Thu, Sep 24, 1998 at 10:21:57AM -0400, Jose M. Sanchez wrote:
> Does this "fake slip connection" happen to correspond to the
> address for "sl0" when you run ifconfig?
Yes, that's the "fake SLIP connection" I'm talking about. Why does this address
end up on the Internet?
Chris
-----Original Message-----
> > I set up masquerading and diald on a friend's computer recently. A little
> > while ago I did a netstat on a mail server that I administer, and saw a
> > connection to a foreign address of 192.168.0.253. This connection was from
> > my friend's masquerading box, and 192.168.0.253 is what I used for one of
> > the addresses that diald employs for the fake SLIP connection that it
> > maintains when the PPP connection isn't up.
> >
> > So the question is: how the hell did a packet with that address get itself
> > out of the box? This doesn't always occur with his setup -- in fact it
> > normally doesn't.
> >
> > His setup is pretty generic, with minimal forwarding rules -- just the
> > default deny policy and the rule to masquerade his 192.168.0.0 network.
> > diald is set up to use 192.168.0.253 and 254 for its fake SLIP connection.
> >
> > The only explanation I can conceive of is that diald (or pppd) isn't
> > setting the local IP (which is dynamically supplied by the ISP) correctly
> > when the connection comes up, and that this may be a result of some
> > confusion about the fake SLIP addresses being in the same network as his
> > internal class C (this is the first time I set up diald, and this didn't
> > occur to me at the time).
> >
> > Any ideas?
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