Re: NM and usb eth gadget

[Dan Williams <dcbw redhat com>]

On Fri, 2008-09-26 at 10:55 +0100, Robert Piasek wrote:
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> Hi,
> 
> By default when new device is connected NM wants to "auto configure"
> it  using DHCP client. As long as MAC address is the same you can set
> up static IP for this connection.
> 
> When it comes to usb ethernet gadget it seems it's got different MAC
> address every time you connect the device. Is there any way i can
> instruct NM on "default" behavior for new connections for specific
> type (like apply these settings only if that's usb and no eth or wifi).

That seems somewhat wrong; what hardware is it?  Does it have the MAC
address printed on a barcode on the outside of the device?  They have to
get a MAC from somewhere, and it can't just be a random one.

Dan

> Here's the log:
> 
> Sep 26 10:42:56 [kernel] usb 4-2: new full speed USB device using
> uhci_hcd and address 12
> Sep 26 10:42:57 [kernel] usb 4-2: configuration #1 chosen from 2 choices
> Sep 26 10:42:57 [kernel] cdc_acm: This device cannot do calls on its
> own. It is no modem.
> Sep 26 10:42:57 [kernel] cdc_acm 4-2:1.0: ttyACM0: USB ACM device
> Sep 26 10:43:03 [kernel] usb 4-2: USB disconnect, address 12
> Sep 26 10:43:07 [kernel] usb 4-2: new full speed USB device using
> uhci_hcd and address 13
> Sep 26 10:43:07 [kernel] usb 4-2: configuration #1 chosen from 2 choices
> Sep 26 10:43:07 [kernel] usb0: register 'cdc_ether' at
> usb-0000:00:1d.0-2, CDC Ethernet Device, 6e:4c:72:dc:70:47
> Sep 26 10:43:07 [NetworkManager] <info>  usb0: driver is 'cdc_ether'._
> Sep 26 10:43:07 [NetworkManager] <info>  Found new Ethernet device
> 'usb0'._
> Sep 26 10:43:07 [NetworkManager] <info>  (usb0): exported as
> /org/freedesktop/Hal/devices/net_6e_4c_72_dc_70_47_
> Sep 26 10:43:11 [nm-system-settings] Adding default connection 'Auto
> usb0' for /org/freedesktop/Hal/devices/net_6e_4c_72_dc_70_47
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): device state change:
> 1 -> 2_
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): bringing up device._
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): preparing device._
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): deactivating device._
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): carrier now ON
> (device state 2)_
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): device state change:
> 2 -> 3_
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) starting
> connection 'Auto usb0'_
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): device state change:
> 3 -> 4_
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 1 of
> 5 (Device Prepare) scheduled..._
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 1 of
> 5 (Device Prepare) started..._
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 2 of
> 5 (Device Configure) scheduled..._
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 1 of
> 5 (Device Prepare) complete._
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 2 of
> 5 (Device Configure) starting..._
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): device state change:
> 4 -> 5_
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 2 of
> 5 (Device Configure) successful._
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 3 of
> 5 (IP Configure Start) scheduled._
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 2 of
> 5 (Device Configure) complete._  
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Stage 3 of
> 5 (IP Configure Start) started..._
> Sep 26 10:43:11 [NetworkManager] <info>  (usb0): device state change:
> 5 -> 7_
> Sep 26 10:43:11 [NetworkManager] <info>  Activation (usb0) Beginning
> DHCP transaction._
> 
> 
> Generally I would like NM to set up the same IP address (user defined)
> for USB connection no matter what MAC address it has.
> 
> Thanks,
> Rob
> 
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