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May 25, 2012 at 20:01 comment added Magellan Not speaking to keepalives, those are obviously Application level. I'm talking about ACKs for the TCP sliding window at the Transport level.
May 25, 2012 at 17:08 comment added jippie Keep alive packets is not part of the TCP nor the IP protocol, at best it is part of the application. So a firewall or a remote client or server may timeout waiting for a packet and drop the socket/connection.
May 25, 2012 at 15:55 comment added Magellan The TCP stack would continue sending ACKs that the window is full though, right?
May 25, 2012 at 6:55 comment added jippie network / firewall sessions may time out and not be restarted because TCP-SYN not being resent.
May 25, 2012 at 5:15 history answered Magellan CC BY-SA 3.0