Dear forum,

I have a question related to half-open tcp connections.

Assume the following:

1. Create a tcp connection
ip1:port1 (client side) <-> ip2:port2 (server side).

2. Remove ethernet cable from client. Reboot the client.

3. Try to create a new tcp connetion from
ip1:port1 (client side) <-> ip2:port2 (server side), i.e.
identical to first connection. This connection shall be carried out
in the same way the first one.

CLIENT SERVER

SYN ->
<- SYN ACK
ACK ->


Assuming that this connection is established, is it legal, can it be used for transmission?

I have read some about tcp in TCP/IP illustrated, Volume 1, W. R. Stevens.


/ Mikael

the problem could be that the tcp-connection is broken in the middel of the transfer. I don't THINK that is is a problem. since TCP will detect that the other side is down and reset the connection.

As long as your other side (the one you rebooted) doesn't come up too quickly, TCP will have handled that.

I don't know what the time out is for a TCP connection. It has to do with the window size and stuff. but I GUESS 60 seconds is about the max.