barcaroller дµÀ:
> Client Server
> -------- SYN J -------->
> <--- SYN K, ACK J+1 ----
> ------- ACK K+1 ------->
>
> During TCP connection establishment (above), the third segment is an ACK
> from the client to the server. What is the sequence number in that segment?
> Is it J or J+1 or 0 or some other value?
>
>
>
>
I use tcpdump to capture a FTP link.and the result is J + 1.

--

chunhui_true@163.com