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seq number

aksher
Level 1
Level 1

Does the seq no. remains unique to a tcp connection until the connection is broken?

1 Reply 1

mhellman
Level 7
Level 7

Not all IP stacks are created equally. Do some googling on "TCP ISN attack" to understand how sequence numbers are used (and abused) in TCP. ISN = Initial Sequence Number.

The ISN should be randomly generated, but from that point forward increments as a way of keeping track of data received. So within a given TCP session, it changes.

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