User's Manual

Chapter 14: Connecting an EnRoute500 Mesh Network to a WAN
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In the case where the LAN prefix is 10 and the mesh prefix is 172.29, the subnets the router
would need to forward to the gateway are 10.2.0.0/255.255.0.0 and 172.29.0.0/255.255.0.0.
Alternatively, to avoid any configuration of the WAN router, enable L2 emulation mode on the
mesh gateway. This will automatically direct traffic destined for the mesh neighborhood’s mesh
devices and clients to the mesh gateway. See section 18.2 for instructions on how to enable
L2 emulation mode.
CLI
The subnet information can be retrieved from the ‘sys’ interface as shown below.
> use sys
sys> get id.*
sys.id.lanprefix = 10
sys.id.mesh = 2
sys.id.meshprefix = 172.29
sys.id.node = 4
Web GUI
The LAN prefix and mesh prefix can be obtained by inspecting the IP addresses available on
the “Status” page. Alternatively, the mesh ID can be obtained from the “Mesh” tab on the
“Wireless Interfaces” page and the LAN prefix can be obtained from the “System” tab on the
“System” page.
14.1.2 “Single Gateway, Explicit Addressing Scheme” Option
A single EnRoute500 gateway can be directly connected to a WAN without using Network
Address Translation. With this gateway configuration and the explicit addressing scheme in
use, the router on the network that the gateway is attached to must be configured to forward
the mesh subnet and all explicitly defined client subnets used in the mesh to the gateway’s
Ethernet interface.
14.1.3 “Multiple Gateway, Implicit Addressing Scheme” Option
Multiple EnRoute500 gateways can be directly connected to a WAN without using Network
Address Translation. With this gateway configuration and the implicit addressing scheme in
use, the router on the network that the gateway is attached to must be configured to use L2
emulation mode on all mesh gateways. This will automatically direct traffic destined for the
mesh neighborhood’s mesh devices and clients to the appropriate mesh gateway, avoiding
any configuration of the WAN router.
See section 18.2 for instructions on how to enable L2 emulation mode.