Patchwork [net-next,2/6] vxlan: document UDP default port

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Submitter stephen hemminger
Date April 27, 2013, 9:31 p.m.
Message ID <20130427213258.207552537@vyatta.com>
Download mbox | patch
Permalink /patch/240204/
State Accepted
Delegated to: David Miller
Headers show

Comments

stephen hemminger - April 27, 2013, 9:31 p.m.
The default port for VXLAN is not same as IANA value.
Document this.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>



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Patch

--- a/drivers/net/vxlan.c	2013-04-27 13:38:54.124378801 -0700
+++ b/drivers/net/vxlan.c	2013-04-27 13:38:57.232338603 -0700
@@ -8,7 +8,6 @@ 
  * published by the Free Software Foundation.
  *
  * TODO
- *  - use IANA UDP port number (when defined)
  *  - IPv6 (not in RFC)
  */
 
@@ -65,7 +64,10 @@  struct vxlanhdr {
 	__be32 vx_vni;
 };
 
-/* UDP port for VXLAN traffic. */
+/* UDP port for VXLAN traffic.
+ * The IANA assigned port is 4789, but the Linux default is 8472
+ * for compatability with early adopters.
+ */
 static unsigned int vxlan_port __read_mostly = 8472;
 module_param_named(udp_port, vxlan_port, uint, 0444);
 MODULE_PARM_DESC(udp_port, "Destination UDP port");