diff --git a/pages/common/stun.md b/pages/common/stun.md
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+# stun
+
+> Classic STUN client.
+> More information: <https://manned.org/stun.1>.
+
+- Make a STUN request:
+
+`stun {{stun.1und1.de}}`
+
+- Make a STUN request and specify the source port:
+
+`stun {{stun.1und1.de}} -p {{4302}}`