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-rw-r--r--usr.sbin/tcpdrop/tcpdrop.820
1 files changed, 20 insertions, 0 deletions
diff --git a/usr.sbin/tcpdrop/tcpdrop.8 b/usr.sbin/tcpdrop/tcpdrop.8
index 3f3fa0c9cc8e..158863c71617 100644
--- a/usr.sbin/tcpdrop/tcpdrop.8
+++ b/usr.sbin/tcpdrop/tcpdrop.8
@@ -78,6 +78,26 @@ is one of
.Dv FIN_WAIT_2 , or
.Dv TIME_WAIT .
.Pp
+If
+.Fl S Ar stack
+and
+.Fl s Ar state
+are specified,
+.Nm
+will attempt to drop all TCP connections being in the state
+.Ar state
+and using the TCP stack
+.Ar stack .
+Since TCP connections in the
+.Dv TIME_WAIT
+state are not tied to any TCP stack, using the option
+.Fl s Dv TIME_WAIT
+in combination with the
+.Fl S Ar stack
+option results in
+.Nm
+not dropping any TCP connection.
+.Pp
The
.Fl l
flag may be given in addition to the