[clug] IPSec / L2TP as dial-in access for remote netbook

Ian McLeod ianmcleod75 at gmail.com
Wed Aug 19 17:22:45 MDT 2009

So OpenVPN could result in this?

Ubuntu Roaming netbook -> Secured Tunnel through VPN modem router -> 
home network -> for all due purposes netbook is 'at home'

I thought it had to be configured at the modem / router level to 
function - or is OpenVPN solution suggesting

Netbook -> secured tunnel through server on remote LAN that assigns IP 
address and provides remote LAN access? -> home network

I thought only a router could provide access to a network.

I acknowledge my knowledge starting point may require a little patience :-)

Whatever works I'm not fussed.

I could probably scrape together an old PC as a basic server too if I 
needed to, but seems a waste not to use the VPN capable modem but if I 
can't then I can't :-)

Francis Markham wrote:
> Hi Ian,
> I've not much experience with IPSec, but I would second Daniel's
> suggestion to use openVPN instead.  Because it operates at the
> application layer, you don't need to do as much configuration of
> routers, don't need to worry about hardware compatibility, etc. so it
> is much easier to use.
> Cheers,
> Francis
> 2009/8/20 Ian McLeod <ianmcleod75 at gmail.com>:
>> Thanks Daniel - this is the first useful and clear suggestions found thus
>> far.
>> So basically I need to configure a few services on my Ubuntu netbook to
>> function as a client back to the modem VPN access point - using IPSec will
>> be fine (once I complete the required cryptography degree).
>> Basically I know little about VPN except that my Billion 7404-VGO modem
>> supports IPSec, L2TP and PPTP - but it doesn't support my embarrassing lack
>> of knowledge.  I thought IPSec could only be used for LAN to LAN (fixed to
>> fixed IP) - not dynamic IP (roaming remote access) to fixed access point
>> (although I have a home dynamic IP I presume I can set up a DynDNS account).
>> My wife's Nokia E71 also has an inbuilt VPN client although this looks like
>> a whole new level of complexity.
>> I would like to access some services remotely but also do not wish to open
>> my network to the outside world - could be anything from grabbing a few
>> files to remotely working on one of my systems - with future intention to
>> run some house appliances off it (say set TV recorder or check webcams or
>> something).
>> For now - I just feel more comfortable surfing from behind my modem NAT and
>> firewall and on the Internode network - probably just blind brand loyalty
>> but I just feel better doing that for some reason.
>> But especially when we go to Europe mid next year I will need this set up so
>> I can do things like banking or pay for accommodation and travel while
>> bypassing dodgy European internet cafes, and to check up on the house at
>> home through webcams or other monitors from time to time (would suck to
>> leave the stove on and not find out until you returned!).
>> So I don't really care what's used as long as it can tunnel from modem to
>> roaming client and offer some level of overall security.
>> I won't be doing gaming on this though - latency across Zagreb, via
>> Canberra, would be hilarious.
>> Also - on another note - I have heard of the TOR anonymising proxy - not
>> sure if this is worth looking at - seems like an academic proof-of-concept
>> more than anything useful - unless one lives in China or North Korea
>> perhaps.
>> Could be fun to deploy in the sport of scam-baiting though.
>> BTW - there's a drink on offer for anyone who can conclusively help me set
>> this up.
>> --
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