Telematics Chapter 6: Network Layer - Freie Universität Berlin

IP Subnets
● Problem: Class C-networks (256 hosts) are very small and Class Bnetworks
(65536 hosts) often too large
● Therefore, divide a network into subnets
Rest
of the
Internet
Example for subnets: subnet mask 255.255.255.0
All traffic
for 128.10.0.0
Ethernet A 128.10.1.0
128.10.1.3 128.10.1.8 128.10.1.70 128.10.1.26
128.10.2.1
Private Network
Ethernet B 128.10.2.0
128.10.1.0
128.10.2.0
128.10.3.0
128.10.4.0
…
128.10.2.3 128.10.2.133 128.10.2.18
Univ.-Prof. Dr.-Ing. Jochen H. Schiller ▪ cst.mi.fu-berlin.de ▪ Telematics ▪ Chapter 6: Network Layer
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