Static MAC address

nobaq

Hi,

To have a special configuration pushed to my clients, I want to give each client a static MAC address.

I found lladdr. However, this option seem sto be ignored! I set e.g.:
dev tap
lladdr 00:FF:33:AC:7F:84
dev-node "OpenVPN"

but ipconfig /all still reports the old MAC address - also the DHCP server on the other end receives the old MAC. Is lladdr broken?

Is there a different way how I can set a static/persistent MAC address for a tap device?
Thank you!

maikcat

can you post the output of ipconfig on your windows client?

if you ommit dev-node parameter,still not working?

Michael.

nobaq

Hi, thanks.

No change if I remove dev-node.

...
Ethernet adapter OpenVPN:

   Connection-specific DNS Suffix  . : intra.example.com
   Description . . . . . . . . . . . : TAP-Windows Adapter V9
   Physical Address. . . . . . . . . : 00-FF-33-AA-6F-DD
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.0.204(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Wednesday, August 07, 2013 10:06:03
   Lease Expires . . . . . . . . . . : Thursday, October 03, 2013 14:40:23
   DHCP Server . . . . . . . . . . . : 192.168.0.10
   DNS Servers . . . . . . . . . . . : 192.168.0.10
   Primary WINS Server . . . . . . . : 192.168.0.10
   NetBIOS over Tcpip. . . . . . . . : Enabled
...

But when starting the tunnel from command line I found an interesting message now: "Thu Aug 08 22:41:03 2013 Sorry, but I don't know how to configure link layer addresses on this operating system."

maikcat

what OS is your client?
can you post full client log?
what openvpn version are you using?

Michael.

nobaq

Hi,

Thanks again. The full log is (replaced public IP with 192.0.2.1 for privacy reaons):

Fri Aug 09 23:51:29 2013 OpenVPN 2.3.2 x86_64-w64-mingw32 [SSL (OpenSSL)] [LZO] [PKCS11] [eurephia] [IPv6] built on Jun  3 2013
Fri Aug 09 23:51:29 2013 UDPv4 link local (bound): [undef]
Fri Aug 09 23:51:29 2013 UDPv4 link remote: [AF_INET]192.0.2.1:1194
Fri Aug 09 23:51:32 2013 [server] Peer Connection Initiated with [AF_INET]192.0.2.1:1194
Fri Aug 09 23:51:34 2013 open_tun, tt->ipv6=0
Fri Aug 09 23:51:34 2013 TAP-WIN32 device [OpenVPN] opened: \\.\Global\{33AA6FDD-9E44-42F4-AE15-DBF15360B579}.tap
Fri Aug 09 23:51:34 2013 Successful ARP Flush on interface [25] {33AA6FDD-9E44-42F4-AE15-DBF15360B579}
Fri Aug 09 23:51:34 2013 Sorry, but I don't know how to configure link layer addresses on this operating system.
Fri Aug 09 23:51:39 2013 Initialization Sequence Completed

OpenVPN is the latest, 2.3.2 and Client is Windows 9. OpenVPN is started with admin rights.

Thanks!

maikcat

windows 9...? :shock:

i dont know if openvpn works in win 9....

developers any comment? 🙂

Michael.

nobaq

Windows 8 of course 😉

maikcat

because i am not M$ expert , i still dont know if openvpn supports win8....

Michael.