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diff --git a/share/man/man4/icmp.4 b/share/man/man4/icmp.4
--- a/share/man/man4/icmp.4
+++ b/share/man/man4/icmp.4
@@ -25,7 +25,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.Dd August 1, 2022
+.Dd December 11, 2024
.Dt ICMP 4
.Os
.Sh NAME
@@ -169,10 +169,31 @@
Enable/disable dropping of ICMP Redirect packets.
Defaults to false.
.It Va icmplim
-.Pq Vt integer
-Bandwidth limit for ICMP replies in packets/second.
+.Pq Vt unsigned integer
+Mean rate limit for replies in packets/second.
+The actual limit is
+.Va icmplim
+plus a random jitter limited by
+.Va icmplim_jitter .
If set to zero, no limiting will occur.
Defaults to 200.
+.It Va icmplim_jitter
+.Pq Vt unsigned integer
+A random jitter between the negative of
+.Va icmplim_jitter
+and
+.Va icmplim_jitter
+is applied to
+.Va icmplim
+for limiting the sending rate of replies.
+.Va icmplim_jitter
+must be smaller than
+.Va icmplim ,
+if
+.Va icmplim
+is not zero.
+If set to zero, no jitter will be applied.
+Defaults to 16.
.It Va icmplim_output
.Pq Vt boolean
Enable/disable logging of ICMP replies bandwidth limiting.
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