Fragmentation

• Routers cannot fragment. Only source hosts can.? Need path MTU discovery or tunneling

• Fragmentation requires an extension header

• Payload is divided into pieces

• A new base header is created for each fragment

Data

Frag. 1 Header

Part 1

Frag. 2 Header

Part 2

Frag. n Header

Part n

Part 1

Part n

...

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