[BUGS] new network technique, combining a /32 adsl address with a routable /24

[Brad Rushworth]

jonathan michaels wrote on 6/03/2008 12:06 AM:
> 
> i have some connercial responsibilities that are carried out
> over teh dialup netwrok because that is where my /24 is
> advertised and routed out tot eh world via teh telstradirect
> account that has been running some 13 years to date, i get my
> 254 address space for 20/month so teh connection is a bot slow
> its about delivering mail and teh ocassional browsing it is
> about teh best value for money (low volume) commecial grade
> account in australia bar none ! i cannot get a commercial
> account, i.e to run internet servers on the hosted machines.
> read your personal account contrract and find out how many
> 'servers' you can run before they take away you account and
> send in teh lawyers to recover costs .. telstra/optus have done
> that in the recent past.
> 
> i'm setting up an adsl link to browse for my own needs, nothing
> to do with my commercial stuff. i thought it would be nice to
> download the freebsd.iso images on teh adsl and then to move
> those images over to teh 'network' where all teh hardware is
> connected to make cd's do tape based storage .. all teh work
> stuff. teh adsl modem is going to have a computer like a intel
> p6 or a 800 mhz pIII as my desktop.
> 
> hope this sheds some light, brad, as regards this madness .. grin.
> 
> kind regards
> 
> jonathan 
> 

Jonathan,

Fair enough, sorry about the abrupt reply. I notice now that your LAN IP 
addresses are public addresses.

Sounds like you have a few options.

1) Do what Trevor said and give each of your machines two IP addresses, 
one internal (eg 192.168.0.0/24) and one external (eg 203.7.226.0/24). 
In this case, all Internet would be via the dialup except the FreeBSD 
machine that could choose either (you would assign a routing 
preference). All machines can talk to each other.

2) Just give the ADSL machine an internal address within your 
203.7.226.0/24 network. Then ADSL machine can choose to access the 
Internet via either interface. LAN uses dialup. All machines can 
communicate.

3) As per (3) but LAN can route through ADSL machine to Internet too. 
You can do this as a gateway or a NAT. Better check with your ADSL 
provider if you are allowed to route traffic through using public 
internal addresses (for the gateway option). NAT will be fine.

I hope this helps. Perhaps I've gone down the wrong path. Not getting 
enough sleep with our new baby.

Brad