allwinner_a64/android/external/iptables/extensions/libxt_tcpmss.man
2018-08-08 16:14:42 +08:00

4 lines
311 B
Groff

This matches the TCP MSS (maximum segment size) field of the TCP header. You can only use this on TCP SYN or SYN/ACK packets, since the MSS is only negotiated during the TCP handshake at connection startup time.
.TP
[\fB!\fP] \fB\-\-mss\fP \fIvalue\fP[\fB:\fP\fIvalue\fP]
Match a given TCP MSS value or range.