tools/libxl: Document where the magic MAC numbers come from

Matches the comment in the xl-network-configuration manpage.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wl@xen.org>

diff --git a/tools/libs/light/libxl_nic.c b/tools/libs/light/libxl_nic.c
index 144e9e23e19837ae762b945d10586abdcb3c845d..0b45469dca1c14df9f4305394e53438127610e05 100644 (file)
--- a/tools/libs/light/libxl_nic.c
+++ b/tools/libs/light/libxl_nic.c
@@ -73,6 +73,7 @@ static int libxl__device_nic_setdefault(libxl__gc *gc, uint32_t domid,
         libxl_uuid_generate(&uuid);
         r = libxl_uuid_bytearray(&uuid);
 
+        /* Generate a random MAC address, with Xen's OUI (00:16:3e) */
         nic->mac[0] = 0x00;
         nic->mac[1] = 0x16;
         nic->mac[2] = 0x3e;