CNet Technology Inc
Broadband Router User Guide
30
Router Configuration
It is essential that all IP packets for devices not on the local LAN be passed to the Broadband
Router, so that they can be forwarded to the external LAN, WAN, or Internet. To achieve this,
the local LAN must be configured to use the Broadband Router as the
Default Route
or
Default
Gateway
.
Local Router
The local router is the Router installed on the same LAN segment as the Broadband Router.
This router requires that the
Default Route
is the Broadband Router itself. Typically, routers
have a special entry for the
Default Route
. It should be configured as follows.
Destination IP Address
Normally 0.0.0.0, but check your router
documentation.
Network Mask
Normally 0.0.0.0, but check your router
documentation.
Gateway IP Address
The IP Address of the Broadband Router.
Metric
1
Other Routers on the Local LAN
Other routers on the local LAN must use the Broadband Router's
Local Router
as the
Default
Route
. The entries will be the same as the Broadband Router's local router, with the exception
of the
Gateway IP Address
.
•
For a router with a direct connection to the Broadband Router's local Router, the
Gateway
IP Address
is the address of the Broadband Router's local router.
•
For routers which must forward packets to another router before reaching the Broadband
Router's local router, the
Gateway IP Address
is the address of the intermediate router.
Routing Example
Router B
(192.168.1.90)
(192.168.2.70)
Router A
Segment 0
Segment 2
Segment 1
Broadband
Router
(192.168.0.xx)
(192.168.1.xx)
(192.168.0.100)
(192.168.0.1)
(192.168.2.xx)
(192.168.1.80)
Figure 17: Routing Example
For the LAN shown above, with 2 routers and 3 LAN segments, the required entries would be
as follows.
