Re: SBS Routing & Remote access changes
- From: Joe <joe@xxxxxxxxxxxxxx>
- Date: Mon, 03 Dec 2007 11:06:00 +0000
Enis wrote:
Hi,
I have a client who has a SBS (Standard) installed with 2 NIC's (one
interfacing the WAN and the other the LAN of course).
They have just implimented a new VOIP Asterisk box on the LAN with a
static IP address. The HO site wants to link other remote sites into
this for Voice trunking and routing etc plus for remote support etc
too. The problem we have is that the Router (NetGear) naturally
cannot route traffic to the port ranges on the LAN side from a WAN IP
address range via the Router.
We have opened up the port ranges on the router to the servers WAN NIC
interface, but we need to be able to also forward these port ranges
from the WAN network interface through to the LAN network interface
(or the IP address of the Asterisk VOIP server).
I see that this is possible for a singe port forward within R&R access
under IP Routing > NAT/Basic Firewall > and then properties of the WAN
network card but not for a port range which is paramount for VOIP
traffic etc.
I know many of you will say should be using SBS Premium instead! but
we are not using this and would like to knwo if there is a wqay of
doing this on SBS Standard (apart from reducing the server to a single
NIC).
It's fairly normal in this situation to use a VPN for VOIP traffic, terminating it at the SBS. That way you don't care what ports are used, and VOIP can use a large range.
If you're happy with one NIC, a good VPN firewall, (and you need a good firewall anyway) will give you better bandwidth, and still avoid opening all the ports to the outside world. Naturally this has to be done at all locations, but if you were planning on linking them anyway for other reasons, nothing is lost.
.
- References:
- SBS Routing & Remote access changes
- From: Enis
- SBS Routing & Remote access changes
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