User's Manual
001-5008-000 rev5_2.doc Page 26
Bridge Mode Example 2:
Ethernet Subnet Mask for all units: 255.255.0.0
Network ID: 172.20.0.0
Computer #1: 172.20.0.1 / 16
ViPR #1: 172.20.0.2 / 16
ViPR #2: 172.20.0.3 / 16
…
ViPR #105: 172.20.136.125 / 16
Computer #302: 172.20.138.205 / 16
…
PLC/RTU #500: 172.20.255.253 / 16
Computer #500: 172.20.255.254 / 16
Broadcast Address: 172.20.255.255
This example is similar to Bridge Mode Example #1 except there are 65534 valid IP
addresses that may be assigned to hosts on the network.
2.10.2 Router Mode
In Router mode, each ViPR has two IP addresses, an Ethernet IP address and an RF IP
Address. By default each ViPR will have the same Ethernet IP Address (192.168.205.1) and
will have a unique RF IP address which is assigned at the factory. The RF IP address will
always have the form 10.x.y.z where x, y, and z is based on the last 6 digits of the unit’s
MAC address.
In Router mode, each ViPR must have its Ethernet IP Address on a unique
network. In
addition, all ViPRs must have their RF IP addresses on the same
network. The default
network is 10.0.0.0/8. For consistent and reliable communication, the RF network
should not overlap or contain any of the IP Addresses in the Ethernet networks.
Router Mode Example 1:
Ethernet Subnet Mask: May vary from ViPR to ViPR.
RF Subnet Mask for all units: 255.0.0.0
ViPR #1 Eth IP Address: 192.168.205.1 / 24 RF IP Address: 10.11.12.25 / 8
Computer #1: 192.168.205.2 / 24
ViPR #2 Eth IP Address: 192.168.206.1 / 24 RF IP Address: 10.9.7.251 / 8
PLC #2: 192.168.206.2 / 24
Computer #2: 192.168.206.3 / 24
ViPR #3 Eth IP Address: 192.168.207.1 / 24 RF IP Address: 10.8.0.52 / 8
PLC #3: 192.168.207.2 / 24
Computer #3: 192.168.207.3 / 24
ViPR #4 Eth IP Address: 172.21.51.105 / 16 RF IP Address: 10.0.1.11 / 8
PLC #4: 172.21.51.106 / 16
In this example, each ViPR has an Ethernet IP address on a unique network. For ViPRs
#1, #2, and #3, each network connected to their local Ethernet ports has 254 valid IP
addresses that may be assigned to other hosts. The network connected to ViPR #4’s
local Ethernet port has 65534 valid IP addresses.