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Hi, May be my basics is not really correct. But shouldn't next sequence no. be sequence no. + tcp len + 1 ? Please help.

asked 07 Jun '17, 02:34

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converted to question 07 Jun '17, 02:36

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Jasper ♦♦

No, it's "current sequence number" plus TCP payload length. The only exception are SYN and FIN flags, which both count as "ghost bytes", so if any of those is present in a packet, the sequence number is increased by +1 (plus actual payload length, if any).

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answered 07 Jun '17, 02:37

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Jasper ♦♦
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question asked: 07 Jun '17, 02:34

question was seen: 1,657 times

last updated: 07 Jun '17, 02:37

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