tcp established timeout duration, have any effect on the user?
There is also a problem, for ppp dial-up users, if user A to obtain the address of the second he is 192.168.1.3, firewall connections through his connection tracking, but when he was off the assembly line, there is a dial-up user B, B user also may obtain the IP address to 192.168.1.3, then this user B, the B-subscriber will have any effect?