Vista VPN

Can this work with Vista over the Internet?

Thanks.

"Jesper" wrote:

> PPTP is a perfectly acceptable VPN technology, although IPsec is a more
> common technology to use now. Both use encrypted connections (which is
> essentially the definition of VPN) and neither needs static addresses.
> ---
> Your question may already be answered in Windows Vista Security:
> http://www.amazon.com/gp/product/047...otectyourwi-20
>
>
> "JJ" wrote:
>

> > Hi:
> >
> > I found an interesting article on the Web while searching for a VPN solution
> > that runs on Vista:
> > http://theillustratednetwork.mvps.or...P/PPTPVPN.html
> >
> > This solution is built into Vista. Is this secure? Does this use encrypted
> > connnections? And wouldn't I need a static and public IP address for the PC
> > running Vista for this to work?
> >
> > Thx.
> >

Yes.
---
Your question may already be answered in Windows Vista Security:
http://www.amazon.com/gp/product/047...otectyourwi-20


"JJ" wrote:

> Can this work with Vista over the Internet?
>
> Thanks.
>
> "Jesper" wrote:
>

> > PPTP is a perfectly acceptable VPN technology, although IPsec is a more
> > common technology to use now. Both use encrypted connections (which is
> > essentially the definition of VPN) and neither needs static addresses.
> > ---
> > Your question may already be answered in Windows Vista Security:
> > http://www.amazon.com/gp/product/047...otectyourwi-20
> >
> >
> > "JJ" wrote:
> >

> > > Hi:
> > >
> > > I found an interesting article on the Web while searching for a VPN solution
> > > that runs on Vista:
> > > http://theillustratednetwork.mvps.or...P/PPTPVPN.html
> > >
> > > This solution is built into Vista. Is this secure? Does this use encrypted
> > > connnections? And wouldn't I need a static and public IP address for the PC
> > > running Vista for this to work?
> > >
> > > Thx.
> > >

Well, how is it going to work over the Internet if the Vista PC doesn't have
a static and public IP address?

Thx.

"Jesper" wrote:

> Yes.
> ---
> Your question may already be answered in Windows Vista Security:
> http://www.amazon.com/gp/product/047...otectyourwi-20
>
>
> "JJ" wrote:
>

> > Can this work with Vista over the Internet?
> >
> > Thanks.
> >
> > "Jesper" wrote:
> >

> > > PPTP is a perfectly acceptable VPN technology, although IPsec is a more
> > > common technology to use now. Both use encrypted connections (which is
> > > essentially the definition of VPN) and neither needs static addresses.
> > > ---
> > > Your question may already be answered in Windows Vista Security:
> > > http://www.amazon.com/gp/product/047...otectyourwi-20
> > >
> > >
> > > "JJ" wrote:
> > >
> > > > Hi:
> > > >
> > > > I found an interesting article on the Web while searching for a VPN solution
> > > > that runs on Vista:
> > > > http://theillustratednetwork.mvps.or...P/PPTPVPN.html
> > > >
> > > > This solution is built into Vista. Is this secure? Does this use encrypted
> > > > connnections? And wouldn't I need a static and public IP address for the PC
> > > > running Vista for this to work?
> > > >
> > > > Thx.
> > > >

It will work the same way any other packet that goes through a network
address translator works (DHCP is entirely orthogonal to this issue). PPTP,
proposed in RFC 2637, simply encapsulates a TCP or UDP session in a GRE
packet. The surrounding IP packet gets address translated just like any other
traffic, in accordance with RFC 2663.

This is the same way IPsec works, except that IPsec validates the source
address on the encapsulating packet. Therefore you have to use IPsec NAT-T,
per RFCs 3715, 3947, and 3948, and perform the encapsulation inside a UDP
packet instead of GRE. That's all handled automatically by the stack in
Windows.

When you connect you get an address local to the remote network. That
address is link-local to the VPN head-end and it will respond to ARP messages
for that address. When it gets a request for that address it simply
encapsulates the packet and ships it to you across the VPN.

This stuff has worked for 10 years at least, longer if you count pre-cursor
technologies like PPP. It's not exactly new technology.
---
Your question may already be answered in Windows Vista Security:
http://www.amazon.com/gp/product/047...otectyourwi-20


"JJ" wrote:

> Well, how is it going to work over the Internet if the Vista PC doesn't have
> a static and public IP address?
>
> Thx.
>
> "Jesper" wrote:
>

> > Yes.
> > ---
> > Your question may already be answered in Windows Vista Security:
> > http://www.amazon.com/gp/product/047...otectyourwi-20
> >
> >
> > "JJ" wrote:
> >

> > > Can this work with Vista over the Internet?
> > >
> > > Thanks.
> > >
> > > "Jesper" wrote:
> > >
> > > > PPTP is a perfectly acceptable VPN technology, although IPsec is a more
> > > > common technology to use now. Both use encrypted connections (which is
> > > > essentially the definition of VPN) and neither needs static addresses.
> > > > ---
> > > > Your question may already be answered in Windows Vista Security:
> > > > http://www.amazon.com/gp/product/047...otectyourwi-20
> > > >
> > > >
> > > > "JJ" wrote:
> > > >
> > > > > Hi:
> > > > >
> > > > > I found an interesting article on the Web while searching for a VPN solution
> > > > > that runs on Vista:
> > > > > http://theillustratednetwork.mvps.or...P/PPTPVPN.html
> > > > >
> > > > > This solution is built into Vista. Is this secure? Does this use encrypted
> > > > > connnections? And wouldn't I need a static and public IP address for the PC
> > > > > running Vista for this to work?
> > > > >
> > > > > Thx.
> > > > >