Add details explaining filtering based on port ranges.
v2: Modified description to remove range as standalone option
and updated as part of dst_port/src_port.
Signed-off-by: Amritha Nambiar <amritha.namb...@intel.com>
---
man/man8/tc-flower.8 | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/man/man8/tc-flower.8 b/man/man8/tc-flower.8
index 8be8882..1d195d0 100644
--- a/man/man8/tc-flower.8
+++ b/man/man8/tc-flower.8
@@ -56,8 +56,10 @@ flower \- flow based traffic control filter
.IR MASKED_IP_TTL " | { "
.BR dst_ip " | " src_ip " } "
.IR PREFIX " | { "
-.BR dst_port " | " src_port " } "
-.IR port_number " } | "
+.BR dst_port " | " src_port " } { "
+.IR port_number " | "
+.B range
+.IR min_port_number-max_port_number " } | "
.B tcp_flags
.IR MASKED_TCP_FLAGS " | "
.B type
@@ -220,10 +222,13 @@ must be a valid IPv4 or IPv6 address, depending on the
\fBprotocol\fR
option to tc filter, optionally followed by a slash and the prefix length.
If the prefix is missing, \fBtc\fR assumes a full-length host match.
.TP
-.BI dst_port " NUMBER"
+.BR dst_port " { " \fINUMBER " | " range " \fIMIN_VALUE-MAX_VALUE " \fR }
.TQ
-.BI src_port " NUMBER"
-Match on layer 4 protocol source or destination port number. Only available for
+.BR src_port " { " \fINUMBER " | " range " \fIMIN_VALUE-MAX_VALUE " \fR }
+Match on layer 4 protocol source or destination port number. Alternatively, the
+\fBrange\fR option can be used to match on a range of layer 4 protocol source
+or destination port numbers by specifying the mininum and maximum values. Only
+available for
.BR ip_proto " values " udp ", " tcp " and " sctp
which have to be specified in beforehand.
.TP
