From 23c578bf7d532552298c84d4872e4ab85ed82840 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Sat, 27 Apr 2013 11:31:53 +0000 Subject: vxlan: document UDP default port The default port for VXLAN is not same as IANA value. Document this. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/net/vxlan.c') 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"); -- cgit v1.2.3