Date   : Wed, 19 Oct 2005 20:49:56 +0100
From   : Phil Blundell <philb@...>
Subject: Re: BBC TCP/IP

On Wed, 2005-10-19 at 20:22 +0100, Matthew Fullerton wrote:
> Are there any restrictions on what addresses I can use? You can't specify a
> netmask on the BBC, so I'm wondering if it wants an (AUN style?) class A
> address.

My recollection is that the BBC expects classful addressing.  That is,
it will look at the first octet of your local address, decide whether it
is class A, B or C, and pick an "appropriate" netmask based on that.
Admittedly, even ten years ago that was a bit of an anachronism, and
today it doesn't really make any sense at all.

So, in your case, it will almost certainly think that anything 10.*.*.*
is on-link, and not use the gateway.  It's a bit unfortunate that *ROUTE
doesn't diagose that.

It'd probably be easy enough to change the code so that you could
specify an explicit netmask.  Or, if you select a "class C" 192.168.x.x
address, I imagine that would clear it up too.

p.