libipt_ECN.man revision e37d45ce390c2f5a7f1e64742b9100ecef0def54 
1This target allows to selectively work around known ECN blackholes.
2It can only be used in the mangle table.
3.TP
4\fB\-\-ecn\-tcp\-remove\fP
5Remove all ECN bits from the TCP header.  Of course, it can only be used
6in conjunction with
7\fB\-p tcp\fP.
8