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jim
New Member

Muiticast over 3-way VPN- What product??

Need a product recommendation.

Project: Three LAN locations connected by Internet VPN transporting multicast VOIP.

Application: A highway worker s portable radio talks into a radio receiver at location 1; the radios at locations 2 and 3 both transmit his voice to other mobile workers. A different worker replies into location 2; his voice is transmitted by 1 & 3. Etc, etc.

The fairly simple layout:

VPN/Router 1 connected to public Internet IP of 66.51.A.X

VPN/Router 2 connected to public Internet IP of 66.51.A.Y (Same 3rd octet as VPN/Router #1)

VPN/Router 3 connected to public Internet IP of 66.51.B.Z

VPN/Router 1 establishes a VPN to VPN/Router 2

VPN/Router 1 establishes a VPN to VPN/Router 3

VPN/Router 2 establishes a VPN to VPN/Router 3

Each VPN/Router will have only one LAN device normally connected, with a maximum of two during local onsite service.

VOIP Device 1 connects to LAN of VPN/Router 1, LAN address of 192.168.1.x (Non-routable subnet, used only for remote administration))

VOIP Device 2 connects to LAN of VPN/Router 2, LAN address of 192.168.2.x

VOIP Device 3 connects to LAN of VPN/Router 3, LAN address of 192.168.3.x

Only when radios are active:

VOIP Device 1 transmits multicast on 239.255.255.1 port 25510

VOIP Device 2 receives multicast on 239.255.255.1 port 25510

VOIP Device 3 receives multicast on 239.255.255.1 port 25510

-or-

VOIP Device 2 transmits multicast on 239.255.255.1 port 25510

VOIP Device 1 receives multicast on 239.255.255.1 port 25510

VOIP Device 3 receives multicast on 239.255.255.1 port 25510

-or-

VOIP Device 3 transmits multicast on 239.255.255.1 port 25510

VOIP Device 1 receives multicast on 239.255.255.1 port 25510

VOIP Device 2 receives multicast on 239.255.255.1 port 25510

Two devices sending multicast at the same time can fail, provided reconnection is automatic.

Must run 24/7.

VOIP bandwidth is less than 48KBs (very small). Multicast packets will be active less than 60 minutes per day.

No firewall, packet examination, or security other than remote administration access user/password.

Capability to temporarily connect plain old laptop to VPN/Router LAN side at any location for diagnostic and very occasional on site service use.

Forwarding all WAN port 80 (or 8080) to VOIP Devices for remote administration. VOIP devices require no additional security or filtering.

Remote port 443 WAN administration access to all VPN/Routers

12 VDC and 120 VAC power available at all sites.

IPSec is not required. GRE or any other protocol that will pass 239.255.255.x multicast on port 25510 is acceptable.

RV042's won't do anything other than IPSec, and block the multicast.

Need a basic router that will do the above. Nothing fancy, pretty or expensive.

Very important: Three LAN locations connected by Internet VPN transporting multicast VOIP over a ‘triangular’ topography.

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