single static ip address

[Guus Sliepen]

On Wed, May 22, 2002 at 09:55:53AM +0100, Gillian wrote:

> I have recently got an adsl connection at home, which only provides
> a single static ip address. I want to set up a tinc vpn from home to
> my workplace. I am trying to decide what hardware I need to do the
> above. At the moment, I am aware that I could use an Alcatel
> Speedtouch USB modem directly connected to a Linux vpn box at
> my home.
> 
> ( Wall socket---adsl cable---Speedtouch---usb cable---Linux PC----internal ethernet)

If you don't mind having a Linux box act as a gateway, and presuming the
Speedtouch modem is supported by Linux, then that is the
most flexible and painless solution.

> Could I use an adsl router (e.g. SAR703) instead of the Speedtouch, and
> still get the Tinc vpn to work? In this case would the SAR703 forward
> both tcp and udp packets needed for a typical Tinc installation?

That depends on how the SAR703 exactly works, which I don't know.
Masquerading UDP can be a problem, and if the SAR703 does't support
manual port forwarding, you might have to tell tinc to use only TCP
(using the TCPonly option described in the manpages). You might also
have difficulty accepting incoming connections if you use such a device,
in that case you must make sure the tinc daemon at work can accept
incoming connections.

> Any advice on adsl router/modem hardware choices for use with Tinc
> is gratefully received.

I'd say, go for the modem.

-- 
Met vriendelijke groet / with kind regards,
  Guus Sliepen <guus at sliepen.warande.net>
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