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authorstephen hemminger <stephen@networkplumber.org>2013-04-27 11:31:53 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-29 11:53:12 -0400
commit23c578bf7d532552298c84d4872e4ab85ed82840 (patch)
tree88700555703fd1797429256abdf3ac9805c337a7 /drivers/net/vxlan.c
parent3b8df3c6b1b626e38ede5a6a056fa759ecbe4745 (diff)
downloadlwn-23c578bf7d532552298c84d4872e4ab85ed82840.tar.gz
lwn-23c578bf7d532552298c84d4872e4ab85ed82840.zip
vxlan: document UDP default port
The default port for VXLAN is not same as IANA value. Document this. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vxlan.c')
-rw-r--r--drivers/net/vxlan.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 9a6962643e55..e6a3d4737df2 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -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");