From: Xavier Veral on
Hi!

Is it possible to use a GRE tunnel to connect 2 switches in diferent
locations with the same vlan?

basically, the scenario is a 2 locations; both with a switch and the
same vlan. I need one computer from the first location to access the a
vlan on the second location.


I was thinking on dot1q tunneling but im not really sure and never
done this before

thanks!
Xavi
From: Bartosz Gagat on
I think that GRE is not enaught. On Cisco you can use pseudo wire technique
(L2 Tunnelig protocol see:
http://www.cisco.com/en/US/tech/tk364/technologies_configuration_example09186a00801f66fa.shtml)
Regards
Bartosz Gagat
"Xavier Veral" <xaviveral(a)hotmail.com> wrote in message
news:db9ac6cb-cecf-4ede-8202-c53a212429d5(a)v29g2000hsf.googlegroups.com...
> Hi!
>
> Is it possible to use a GRE tunnel to connect 2 switches in diferent
> locations with the same vlan?
>
> basically, the scenario is a 2 locations; both with a switch and the
> same vlan. I need one computer from the first location to access the a
> vlan on the second location.
>
>
> I was thinking on dot1q tunneling but im not really sure and never
> done this before
>
> thanks!
> Xavi


From: CK on
On Jan 14, 7:51 pm, Xavier Veral <xavive...(a)hotmail.com> wrote:
> Hi!
>
> Is it possible to use a GRE tunnel to connect 2 switches in diferent
> locations with the same vlan?
>
> basically, the scenario is a 2 locations; both with a switch and the
> same vlan. I need one computer from the first location to access the a
> vlan on the second location.
>
> I was thinking on dot1q tunneling but im not really sure and never
> done this before
>
> thanks!
> Xavi

If the both Switches are in same Vlan then hey must interact with each
other without and problem. Why you need GRE tunneling in this
scenerio.

May be i am not clear about the asked question.

Rgds....CK
From: alexd on
On Mon, 14 Jan 2008 23:58:36 -0800, CK wrote:

> On Jan 14, 7:51 pm, Xavier Veral <xavive...(a)hotmail.com> wrote:
>> Hi!
>>
>> Is it possible to use a GRE tunnel to connect 2 switches in diferent
>> locations with the same vlan?

> If the both Switches are in same Vlan then hey must interact with each
> other without and problem. Why you need GRE tunneling in this scenerio.
>
> May be i am not clear about the asked question.

Presumably the two locations that the OP is connecting with a GRE tunnel
aren't linked together with a protocol that supports VLANs natively.

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From: Xavier Veral on
On 15 ene, 09:41, alexd <troffa...(a)hotmail.com> wrote:
> On Mon, 14 Jan 2008 23:58:36 -0800, CK wrote:
> > On Jan 14, 7:51 pm, Xavier Veral <xavive...(a)hotmail.com> wrote:
> >> Hi!
>
> >> Is it possible to use a GRE tunnel to connect 2 switches in diferent
> >> locations with the same vlan?
> > If the both Switches are in same Vlan then hey must interact with each
> > other without and problem. Why you need GRE tunneling in this scenerio.
>
> > May be i am not clear about the asked question.
>
> Presumably the two locations that the OP is connecting with a GRE tunnel
> aren't linked together with a protocol that supports VLANs natively.
>
> --
>  <http://ale.cx/> (AIM:troffasky) (UnSoEsNpE...(a)ale.cx)
>  08:40:39 up 9 days, 23:05,  2 users,  load average: 1.11, 1.09, 1.14
>  2x Broadband/IT/Telecoms support positions in Newcastle city centre.
>  For more info call 0191 229 8870 and ask for Steve. No agencies.

yes, exactly thats the case; i have both offices linked using
encrypted gre tunneling (vti interface) and need to access on vlan on
office 1 from office 2.

I need to make something like, lets say a subinterface on the tunel
that connects both switches and vlan.

Im not sure if i explain the idea correctly :-)

thanks