User manual

100
 Upload Button
After selecting the firmware configuration filename above, press the Upload button to begin the configuration
loading process.
 Save
Returns a link to the configuration file on the unit. Right-click the link and select "Save Target As..." to save the file.
The link page refreshes after 15 seconds. It is recommended to use the specified filename to save the file. If
multiple files need to be maintained, it is recommended to use directory paths to separate the files.
4 IP ADDRESSING
4.1 OVERVIEW
When Vanguard cellular router is connected to a cellular carrier, it will always have two IP addresses. The first is the local
area network (LAN) address. The Vanguard can be accessed through either the LAN 1 or LAN 2 Ethernet connectors on the
front panel using this IP address. This IP address is user configurable and is saved locally in the Vanguard. The factory
default IP address is 192.168.1.50 with a subnet mask of 255.255.255.0.
The second Vanguard IP address is assigned by the cellular carrier each time the Vanguard connects to the cellular network.
Often, this IP address is publically accessible from the Internet, however in some instances the cellular carrier may assign an
IP address that is protected by firewalls. When a publically accessible IP address is assigned, data flows can be initiated
from either the Vanguard or from the Internet. When an IP address is protected by cellular firewalls, data flows can only be
initiated from the Vanguard. In either case, after a data flow has been established, data is free to move in both directions.
4.2 IP ADDRESSING TUTORIAL
The default LAN subnet of the Vanguard consists of addresses from 192.168.1.0 to 192.168.1.255. The first and last IP
address a subnet is always reserved, no matter what the subnet size is. The first IP address in the subnet is the Network ID.
The last IP address in the subnet is the Broadcast Address.
The example below illustrates a sample Vanguard network. The subnet consists of IP addresses ranging from 192.168.1.0 to
192.168.1.255. The subnet mask is 255.255.255.0. This is sometimes written in shorthand notation as: 192.168.1.50/24
since the subnet mask 255.255.255.0 contains 24 ones then 8 zeros when it is converted to binary.
The first address 192.168.1.0 is reserved for the Network ID. The last address 192.168.1.255 is reserved for the broadcast
address. There are 254 valid IP addresses that may be assigned to hosts on the LAN network.
Ethernet Subnet Mask 255.255.255.0
Network ID 192.168.1.0 (reserved – first IP address in subnet)
Broadcast Address: 192.168.1.255 (reserved – last IP address in subnet)
Vanguard 192.168.1.50/24
PLC/RTU #1 192.168.1.10/24
Computer #1 192.168.1.125/24