Re: Accessing a host with variable IP addresses / connection types

[Celejar <celejar@gmail.com>]

On Wed, 17 Apr 2019 14:59:53 +0100
Joe <joe@jretrading.com> wrote:

> On Wed, 17 Apr 2019 08:15:09 -0400
> Celejar <celejar@gmail.com> wrote:
> 
> 
> > Currently, my LAN is 192.168.0.0/24, which is also the addressing
> > scheme of some of the networks out of my control that I'm setting up a
> > VPN link from. I deliberately used 10.0.0.0/24 for the VPN to avoid
> > address collisions with these other networks. It did occur to me to
> > consider using a different address space, for the VPN or perhaps for
> > the whole home LAN, but I'd rather not take that step just to solve
> > what seems a relatively simple problem unless absolutely necessary
> > 
> 
> If you do get pushed to doing that, there are a few commonly used
> networks that you should avoid. 10. is often used with a netmask of
> /24 or /8, and the latter precludes all 10. variants. Of the 192.168.
> groups, 0, 1, 8, 16 and 254 are often used, best use something quite
> random like 192.168.137.0/24.
> 
> Probably better still is one of the 172.16-172.31 groups, which don't
> seem to be used as defaults very often.

Thanks. When I first set up the VPN, I did some reading about this, and
I was rather shocked to see that there was no definitive solution to
avoid address collisions, just recommendations like yours to try to
make a good guess about it ...

Celejar