That sounds rather odd. Two distinct sites in the same subnet? Apart
from the tunneling already mentioned, I hope you have mammoth
bandwidth because all your servers/hosts will think they are on the
same LAN!
If you do, I am sure you can ask the ISP to provide the tunneling for
you. Ask for l2 VPN ax opposed to l3 VPN.
Sent from my iPhone
On 03/11/2009, at 10:32, "Michael Lipsey" <[email protected]>
wrote:
The goal I’ve been told to meet is that VLAN X in location Y must al
so exist in Location Z. Same subnet, etc.
The two locations are interconnected via IP.
I’ve looked at all I can think to look at regarding GRE tunnels but
the whole ‘transport of a vlan’ over one just has not jumped up
and bit me yet. So any links you can provide (Adam) to get me in tha
t direction would be helpful.
Like I mentioned earlier, I know about L2TPv3 but can’t use it due t
o code limitations on these 6500s. Unfortunately right now a code up
grade isn’t going to work. My other option is to simply implement a
VPN between the sites with the users plugging into a vlan I make up
over there and then VPN them over to location Y and do a translatio
n to get them where they need to be. It’s actually pretty simple to
set that up and I’m reasonably sure that it will meet all the needs.
Right now I’m trying to remember where in the Docs the
‘tunnels’ are…
-Mike
From: Joe Astorino [mailto:[email protected]]
Sent: Monday, November 02, 2009 3:25 PM
To: Michael Lipsey
Cc: Adam Frederick; [email protected]
Subject: Re: [OSL | CCIE_RS] Routing a VLAN between sites
What exactly do you mean "provide access to" ??? If you just need
people at the other site to be able to access devices on that VLAN
simple routing will do just fine. If you want devices on both sides
to be part of the same actual layer 2 broadcast domain, that is a
job for something like L2TPv3 like you said.
On Mon, Nov 2, 2009 at 5:58 PM, Michael Lipsey
<[email protected]> wrote:
Between the two sites I would consider it ‘IP’ as far as the
logical topology. The actual topology is that we have an ISP that pr
ovides us connectivity between sites via their MPLS cloud. We are co
mpletely CE however.
-Mike
From: Adam Frederick [mailto:[email protected]]
Sent: Monday, November 02, 2009 2:52 PM
To: Michael Lipsey
Subject: RE: [OSL | CCIE_RS] Routing a VLAN between sites
What is between the 2 sites? (I.e. WAN, Fiber, Internet)
From: [email protected] [mailto:ccie_rs-
[email protected]] On Behalf Of Michael Lipsey
Sent: Monday, November 02, 2009 5:32 PM
To: [email protected]
Subject: [OSL | CCIE_RS] Routing a VLAN between sites
I’ve got a little situation in my production environment. I’ve
got a VLAN at one location that I need to provide access to from ano
ther location. Basically I need to tunnel the VLAN over IP. It is IP
between both sites and the two end points are 6500s running 12.2.SX
code.
I had been looking into L2TPv3 but my code doesn’t appear to support
that.
Any other ideas?
Thought this might be a good place to ask…
-mike
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