14
S&C Instruction Sheet 1075-510
Using Static Routes
Figure 3 is an example of a point-to-point SpeedNet SDR Radio network. In this example,
Subnet 1 has been assigned the 192.168.1.0 Class C subnet, while Subnet 2 has been assigned
the 192.168.2.0 Class C subnet. For the wireless network common between the two radios,
the 192.168.3.0 Class C subnet has been assigned.
SpeedNet SDR 1
Ethernet Interface: 192.168.1.1
Wireless Interface: 192.168.3.1
IP Address: 192.168.1.2
SpeedNet SDR 2
Ethernet Interface: 192.168.2.1
Wireless Interface: 192.168.3.2
IP Address: 192.168.2.2
Figure 3. Wireless network using SpeedNet SDR Radios with static routes.
To route traffic between subnets, several things must happen. First, all hosts on a given
subnet must use the attached SpeedNet SDR Radio as their default gateway. As an alternative,
manual routes can be entered in each host’s routing table. Hosts from Subnet 1 will list
192.168.1.1 as their default gatew
ay. Assuming that ad-hoc routing is deactivated, it is also
necessary to add static routes in each SpeedNet SDR Radio. The Sp
eedNet SDR Radio from
Subnet 1 must have a static route to Subnet 2, using the SpeedNet SDR Radio from Subnet
2 as the gateway. The route should be set up like this:
192.168.2.0
255.255.255.0
192.168.3.2
Network
Netmask
Gateway
All hosts from Subnet 2 should use 192.168.2.1 as their default gateway. As an alternative,
manual routes can be entered in each host’s routing table. The SpeedNet SDR Radio from
Subnet 2 must have a static route to Subnet 1, using the SpeedNet SDR Radio from Subnet
1 as the gateway. This route should be set up like this:
192.168.1.0
255.255.255.0
192.168.3.1
Network
Netmask
Gateway
NOTICE
It is important to understand there are actually three subnets in this example:
Subnet 1, Subnet 2, and the radio network.
It is also important that all radio wireless IP addresses be on the same subnet, while
all radio Ethernet IP addresses must be on different, non-overlapping subnets.
Installation
