diff --git a/man/systemd.netdev.xml b/man/systemd.netdev.xml
index 7fddedf6e8..fc33f89a38 100644
--- a/man/systemd.netdev.xml
+++ b/man/systemd.netdev.xml
@@ -661,7 +661,8 @@
          <para>Takes a boolean. When true, Generic Protocol Extension extends the existing VXLAN protocol
          to provide protocol typing, OAM, and versioning capabilities. For details about the VXLAN GPE
          Header, see the <ulink url="https://tools.ietf.org/html/draft-ietf-nvo3-vxlan-gpe-07">
-         Generic Protocol Extension for VXLAN </ulink> document. Defaults to false.</para>
+         Generic Protocol Extension for VXLAN </ulink> document. If destination port is not specified and
+         Generic Protocol Extension is set then default port of 4790 is used. Defaults to false.</para>
        </listitem>
     </varlistentry>
     <varlistentry>
diff --git a/src/network/netdev/vxlan.c b/src/network/netdev/vxlan.c
index 86403696a0..56c97cb686 100644
--- a/src/network/netdev/vxlan.c
+++ b/src/network/netdev/vxlan.c
@@ -289,6 +289,9 @@ static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
                                                 "%s: VXLAN TTL must be <= 255. Ignoring.",
                                                 filename);
 
+        if (!v->dest_port && v->generic_protocol_extension)
+                v->dest_port = 4790;
+
         return 0;
 }