VPN vs. VPN Tunnel

VPN vs. VPN Tunnel

am 30.09.2006 01:20:08 von Phoenix8172

Newbie technology question: Is there a difference between just having
a VPN, vs having a VPN tunnel? Or on the other hand, is the case that,
in fact, when you create a VPN, there is inherently a VPN tunnel
between the nodes of the VPN network?

Thanks,
Phoenix

Re: VPN vs. VPN Tunnel

am 30.09.2006 01:46:19 von roberson

In article <1159572008.165107.312460@h48g2000cwc.googlegroups.com>,
wrote:
>Newbie technology question: Is there a difference between just having
>a VPN, vs having a VPN tunnel? Or on the other hand, is the case that,
>in fact, when you create a VPN, there is inherently a VPN tunnel
>between the nodes of the VPN network?

VPNs don't have to be tunnels. For example, even an 802.1Q VLAN
all the way through between the two endpoints is effectively a VPN.

Re: VPN vs. VPN Tunnel

am 30.09.2006 03:32:04 von Volker Birk

Phoenix8172@yahoo.com wrote:
> Is there a difference between just having
> a VPN, vs having a VPN tunnel?

Yes.

A VPN you can have by just translating network addresses. It even can be
encrypted by encrypting payload only.

Of course, I don't think that other technics than fully encrypting
tunneled packets are of any worth by means of security.

Yours,
VB.
--
Viel schlimmer als die Implementation von PHP ist jedoch das Design.

Rudolf Polzer in de.comp.security.misc

Re: VPN vs. VPN Tunnel

am 30.09.2006 05:06:19 von Phoenix8172

Walter Roberson wrote:
> VPNs don't have to be tunnels. For example, even an 802.1Q VLAN
> all the way through between the two endpoints is effectively a VPN.

Okay, thank you for the reply. Then, can you also explain, what is the
extra feature of the "VPN tunnel", as opposed to just having a VPN?
Does it offer extra security?

BTW, it may seem I'm taking the lazy way out here, but I searched
online, and could not find a document that clearly distinguished
between VPN and VPN tunnel. If someone can guide me to a Web site,
..pdf, ppt, etc. that summarizes the difference, I'd be very grateful.

Phoenix

Walter Roberson wrote:
> In article <1159572008.165107.312460@h48g2000cwc.googlegroups.com>,
> wrote:
> >Newbie technology question: Is there a difference between just having
> >a VPN, vs having a VPN tunnel? Or on the other hand, is the case that,
> >in fact, when you create a VPN, there is inherently a VPN tunnel
> >between the nodes of the VPN network?
>
> VPNs don't have to be tunnels. For example, even an 802.1Q VLAN
> all the way through between the two endpoints is effectively a VPN.

Re: VPN vs. VPN Tunnel

am 07.10.2006 16:36:13 von BobS

wrote in message
news:1159572008.165107.312460@h48g2000cwc.googlegroups.com.. .
> Newbie technology question: Is there a difference between just having
> a VPN, vs having a VPN tunnel? Or on the other hand, is the case that,
> in fact, when you create a VPN, there is inherently a VPN tunnel
> between the nodes of the VPN network?
>
> Thanks,
> Phoenix
>

This may help

http://tinyurl.com/lrxjs

Bob S.