| Patrick McHardy | 98e1769 | 2011-12-28 14:27:47 +0100 | [diff] [blame] | 1 | This allows you to match the ECN bits of the IPv4/IPv6 and TCP header. ECN is the Explicit Congestion Notification mechanism as specified in RFC3168 |
| 2 | .TP |
| 3 | [\fB!\fP] \fB\-\-ecn\-tcp\-cwr\fP |
| 4 | This matches if the TCP ECN CWR (Congestion Window Received) bit is set. |
| 5 | .TP |
| 6 | [\fB!\fP] \fB\-\-ecn\-tcp\-ece\fP |
| 7 | This matches if the TCP ECN ECE (ECN Echo) bit is set. |
| 8 | .TP |
| 9 | [\fB!\fP] \fB\-\-ecn\-ip\-ect\fP \fInum\fP |
| 10 | This matches a particular IPv4/IPv6 ECT (ECN-Capable Transport). You have to specify |
| 11 | a number between `0' and `3'. |