The document discusses IP subnetting and address types. It provides examples of IP addresses with different subnet masks including 192.168.2.11/255.255.255.0 and 10.3.71.170/8. It defines the different classes of subnet masks and addresses, and how they determine the maximum number of hosts. Private networks can be structured with multiple subnet levels, such as a class B network divided into class C subnets.

1. SMC Networks
Visual IP Subnetting

2. IP address and subnet mask
IP Address: 192.168.2.11
Subnet: 255.255.255.0

3. IP address and subnet mask
Subnet: 255.255.255.0
IP Address: 192.168.2. 11
Network IP Address: Computer IP Address:
192.168.2.0 192.168.2.11

4. IP address and subnet mask
Computer IP Address: 192.168.2.11
Subnet Mask: 255.255.255.0
Network Address: 192.168.2.0
Available IP Addresses
for hosts in the LAN: 192.168.2.1-254
IP Address BROADCAST 192.168.2.255

5. Subnet Mask Types
Class A 255.0.0.0
11111111.00000000.00000000.00000000
Class B 255.255.0.0
11111111.11111111.00000000.00000000
Class C 255.255.255.0
11111111.11111111.11111111.00000000
User defined 255.255.240.0
Examples 11111111.11111111.11110000.00000000
255.255.255.224
11111111.11111111.11111111.11100000
255.255.255.252
11111111.11111111.11111111.11111100

6. IP Address Types
Class A 1 to 126.xxx.xxx.xxx
Class B 128 to 191.xxx.xxx.xxx
Class C 192 to 223.xxx.xxx.xxx
Class D 224 to 239.xxx.xxx.xxx for multicasting
Class E 240 to 254.xxx.xxx.xxx reserved future use
127.xxx.xxx.xxx are reserved for loopback and internal
testing

7. Subnet Masks and IP addresses
sA Mask short name Max. Number of Hosts
Clas
255.0.0.0 /8 16.777.214
11111111.00000000.00000000.00000000
sB
Clas
255.255.0.0 /16 65534
11111111.11111111.00000000.00000000
sC
Clas
255.255.255.0 /24 254
11111111.11111111.11111111.00000000
255.255.240.0 /20 4094
11111111.11111111.11110000.00000000
255.255.255.224 /27 30
11111111.11111111.11111111.11100000
255.255.255.252 /30 2
11111111.11111111.11111111.11111100

8. Examples
IP Address: 10.3.71.170 /8
Computer IP Address: 10.3.71.170
Subnet Mask: 255.0.0.0
h osts
77 .214
Network Address: 10.0.0.0 16.7
Available IP Addresses
for hosts in the LAN: 10.xxx.xxx.xxx
IP Address BROADCAST 10.255.255.255

9. Examples
IP Address: 130.11.92.7 /16
Computer IP Address: 130.11.92.7
Subnet Mask: 255.255.0.0
os ts
34h
Network Address: 130.11.0.0 655
Available IP Addresses
for hosts in the LAN: 130.11.xxx.xxx
IP Address BROADCAST 130.11.255.255

10. Examples
IP Address: 192.168.2.10 /24
Computer IP Address: 192.168.2.10
Subnet Mask: 255.255.255.0
ts
ho s
254
Network Address: 192.168.2.0
Available IP Addresses
for hosts in the LAN: 192.168.2.xxx
IP Address BROADCAST 192.168.2.255

11. IP Address Types
In private networks you can create a class B network
inside a class A address/network.
Network IP Address: 10.0.0.0 /24
SubNetwork: 10.1.0.0 /16
SubNetwork: 10.2.0.0 /16
SubNetwork: 10.3.0.0 /16 …

12. IP Address Types
And also create class C networks inside a class B
address/network.
Network IP Address: 10.9.0.0 /16
SubNetwork: 10.9.1.0 /24
SubNetwork: 10.9.2.0 /24
SubNetwork: 10.9.3.0 /24 …

13. IP Address Types
In private networks you can create any type of network
that suits your needs in terms of IP address type and
network mask/amount of host IP addresses. For instance:
IP Address: 10.70.2.10 /24
Computer IP Address: 10.70.2.10
Subnet Mask: 255.255.255.0
Network Address: 10.70.2.0
Available IP Addresses for hosts in the LAN: 10.70.2.xxx
IP Address BROADCAST 10.70.2.255

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Disclaimer: All data has been carefully checked for correctness.
SMC Networks takes no responsibility for possible errors in this document.
All technical specifications are subject to change without prior notice.
(c) 2010, SMC Networks