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Using hping for crafting SYN packets

I use hping like this:

hping -i eth0 -c25 -S 123.123.123.123 -p 80

Is this creating a SYN packet correctly ?

Asked by:
PCdude
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Best Answer

I would have said yes, but doing it myself and checking with wireshark (and comparing with the packet generated by telnet 123.123.123.123 80), it's not valid because it's got a non-zero ack field even though the ACK flag is not set. Adding -L 0 would probably make it correct.

Response by:
s
3383 points


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