RAD Data comm Modular Access Device with Integrated Router Manuel D’Utilisation

FCD-IPM Installation and Operation Manual 

Chapter 5  Setup Menu 

 

Host Parameters Menu 

5-5 

IP Address  

to 127.255.255.255, 

to 191.255.255.255, 

to 223.255.255.255, 

to 239.255.255.255, 

to 247.255.255.255 

Every device on a TCP/IP network must have an address 

for identification. The IP address is a value consisting of 
the network address and the host address on that 

network. The value assigned to a network depends on 

the number of computers on that network. 
The IP address is a 32-bit number. The number is made 

up of 4 parts, with each part consisting of 3 digits. One 

part of the address identifies the network and another 
part of the address identifies the host. The numbers in 

the address, which identify the host, are dependent on 

the class. 

There are 5 classes of IP addresses. Each class represents 
a network having a certain number of computers. For 

example, a Class C address is given to a network having 

between 1 to 255 computers.  
The numbers in each part of the code are translated 

into binary code, which identifies the network and the 

host. 
IP addresses are assigned by the Internet Network 

Information Center (InterNIC). InterNIC assigns the 

network ID. Host IDs are assigned by the network 

administrator. 

IP Mask 

A subnet is a portion of a network that shares a 

common address component. On TCP/IP networks, 

subnets are defined as all devices whose IP addresses 
have the same prefix. For example, all devices whose IP 

addresses begin with 133.100.100. are part of the same 

subnet. An IP mask allows you to filter IP addresses on a 

subnet. When an IP address is configured, the IP mask is 
automatically configured according to the Class of the IP 

Network. 
Note: The default IP mask can be edited. 

Default Gateway   

The default gateway defines where frames will be sent, 

if no explicit routing is defined in the routing table. 

The default gateway can be an IP address or a WAN 
interface. If you choose to use an IP address, enter the 

address of the router that will deliver the frames. 

Specifying an IP address for the default gateway is done 
with shared media, such as LAN interface. 

If you choose to use a WAN interface, the connection 

to the router is point-to-point. Choose by interface and 
enter the interface/DLCI number.