Computer Networks I IP addressing
Computer Networks I IP addressing
Computer Networks I IP addressing
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<strong>Computer</strong> <strong>Networks</strong> I 21<br />
Supernetting<br />
RFC<br />
1338<br />
●<br />
●<br />
Problem: C-class network are too small.<br />
Solution: Aggregate small networks to get largest. Part of the net-id<br />
is used to address hosts.<br />
0<br />
0 1 2 3 4 5 6 7 8 9<br />
1<br />
0 1 2 3 4 5 6 7 8 9<br />
2<br />
0 1 2 3 4 5 6 7 8 9<br />
3<br />
0 1<br />
110 net id<br />
host id<br />
Requirements:<br />
● The numbers of blocks must be power of 2.<br />
●<br />
●<br />
The block must have continuous <strong>addressing</strong>.<br />
The third byte of the first address must be divisible by the number of<br />
blocks.