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vxlan: document UDP default port

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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>
This commit is contained in:
stephen hemminger 2013-04-27 11:31:53 +00:00 committed by David S. Miller
parent 3b8df3c6b1
commit 23c578bf7d
1 changed files with 4 additions and 2 deletions
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6
drivers/net/vxlan.c
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@ -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");