TCP/IP: Difference between revisions
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* Only Data in a datagram is fragmented. Header is never fragmented. |
* Only Data in a datagram is fragmented. Header is never fragmented. |
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* Options are in a TLV format which can be max 40 Bytes in length. |
* Options are in a TLV format which can be max 40 Bytes in length. |
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[Type][Length][Value] |
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* Type field is 1 Byte & Length field is also 1 byte in length. |
* Type field is 1 Byte & Length field is also 1 byte in length. |
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* Options field may or may not be copied into each fragment. |
* Options field may or may not be copied into each fragment. |
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* Copy Options filed into a Fragment is based on the first bit of Type field. |
* Copy Options filed into a Fragment is based on the first bit of Type field. |
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1st bit =0 ==> Copy options in 1st fragment only |
1st bit = 0 ==> Copy options in 1st fragment only |
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1st bit =1 ==> Copy options in all fragments |
1st bit = 1 ==> Copy options in all fragments |
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* Fragmented Packet Analysis: |
* Fragmented Packet Analysis: |