From: Nick Matthews (matthn@gmail.com)
Date: Mon Feb 23 2009 - 05:37:03 ARST
There's no need for layer 2 tunneling in a CME environment. The
phones only need layer 3 reachability. To do this on the internet,
you would need to open up SCCP (TCP 2000), TFTP (UDP 69), and the
audio (UDP 16384-32767) at the HQ.
Is configuring a VPN/GRE tunnel from each of the branch routers to the
HQ router not an option? If you care about security go for VPN/IPSEC,
otherwise a GRE tunnel over the internet should work.
On Mon, Feb 23, 2009 at 1:04 AM, Uyota Oyearone <spycharlies@gmail.com> wrote:
> Hi Experts,
>
> Besides VPLS, is there any other possible way to route VLAN information
> over the internet to a branch site ?
>
> Could IRB be effective? just looking at it logically, irb seems nasty and
> could get complicated !
>
> The purpose of this lab is VOIP Implementation, I am assuming i had 3
> locations ( One headquater and 2 branches).
>
> Only the headquater has a CME/FXE capable router, The branches have a switch
> and a router with 2 fast ethernet
>
> I hope its clear ! Basically for the branches to make voip calls, they have
> to route thru the Headquaters.
>
> Not feasible in the real world, but assuming i can only afford one cme
> router, does it mean i can implement VOIP?
>
> Regards ;-
>
> Uyota
>
>
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