[c-nsp] splitting a subnet into two locations

David Prall dcp at dcptech.com
Thu Feb 1 22:27:27 EST 2007


Could also do proxy-arp along with LAM so that you don't need to manually
put in the /32's.

David

--
http://dcp.dcptech.com


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ed Ravin
> Sent: Thursday, February 01, 2007 9:47 PM
> To: Rudy Setiawan
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] splitting a subnet into two locations
>
> On Thu, Feb 01, 2007 at 05:33:01PM -0800, Rudy Setiawan wrote:
> > I am trying to get the same subnet from one network to
> another network
> > over a layer-3.
> > So that everyone can see the PC who is on different offices
> is able to
> > see each other's PC/Printers.
> >
> > I know that OpenVPN can do the job but I would like to find out if
> > Cisco gears can do that with some sort of tunneling.
>
> I did it without any tunneling when moving a data center last
> year - we announced the subnet into OSPF as originating from
> one location, and then added /32 routes for the individual
> machines as we moved them to the new location.  We turned on
> proxy-arp at both locations so the machines on one side could
> route to the other.  We also had to redo our hard-coded
> anti-spoofing ACLs during the move.
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