diff --git a/modules/installation-network-user-infra.adoc b/modules/installation-network-user-infra.adoc
index 429b48b99d10..4988c4534630 100644
--- a/modules/installation-network-user-infra.adoc
+++ b/modules/installation-network-user-infra.adoc
@@ -148,7 +148,7 @@ endif::ibm-z[]
 |N/A
 |Network reachability tests
 
-.3+|TCP
+.4+|TCP
 |`1936`
 |Metrics
 
@@ -159,6 +159,8 @@ the Cluster Version Operator on port `9099`.
 |`10250`-`10259`
 |The default ports that Kubernetes reserves
 
+|`22623`
+|The port handles traffic from the Machine Config Server and directs the traffic to the control plane machines.
 .6+|UDP
 |`4789`
 |VXLAN