[Voyage-linux] Sierra 3G modem Direct IP feature in Voyage+Alix

[Jordi Soucheiron]

Hi,
Really interesting! Could you tell us which sierra module version are
you using? (modinfo sierra)
I cannot help you with the newtork redundancy problem, but it would be
interesting to know how to solve it.

2009/10/23 Antti Turunen <antti.turunen at siptune.fi>:
> Dear all,
>
> after some challenges with installing the necessary modules for the new
> Sierra Wireless MC8700 embedded modem on ALIX 6b2 I got the modem now up and
> the new Direct IP interface working.
>
> Here is briefly how it was done, and there is two questions left to you
> gurus too.
>
> So, if Direct IP is new to you too, its is a very very cool new feature in
> the newest Sierra modems. You can connect directly to 3G modem without using
> ppp at all!
>
> Here is the story:
>
> 1. I installed new sierra and sierra_net modules to Voyage, and they seem
> OK:
>
> voyage:~# lsmod |grep sierra
> sierra_net              8580  0
> usbnet                 12040  1 sierra_net
> sierra                 11144  0
> usbserial              24368  1 sierra
> usbcore               103996  7
> sierra_net,usbnet,sierra,usbserial,ohci_hcd,ehci_hcd
>
> 2. The new usb0 interface gets up and IP addresses from the operator:
>
> voyage:~# ifconfig usb0
> usb0      Link encap:Ethernet  HWaddr ba:36:0c:7f:01:07
>           inet addr:85.77.195.36  Bcast:85.77.195.36  Mask:255.255.255.255
>           inet6 addr: fe80::b836:cff:fe7f:107/64 Scope:Link
>           UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1
>           RX packets:207 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:380 errors:0 dropped:5 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:43510 (42.4 KiB)  TX bytes:30174 (29.4 KiB)
>
> 3. As the last step I changed NAT'ing eth0 from eth1 to usb0 and after that
> it works nicely.
>
>
> Then the questions:
>
> 1. At boot there is a notification about invalid interface number and
> missing interface number (lines 2 and 3 below). Is this a problem and is
> there something I could do?
>
> [   11.020832] usb 2-3: new high speed USB device using ehci_hcd and address
> 2
> [   11.137442] usb 2-3: config 1 has an invalid interface number: 7 but max
> is 4
> [   11.138781] usb 2-3: config 1 has no interface number 2
> [   11.140781] usb 2-3: configuration #1 chosen from 1 choice
> [   15.133035] geode-aes: GEODE AES engine enabled.
> [   15.541265] AMD Geode RNG detected
> [   15.664649] input: PC Speaker as /class/input/input0
> [   15.830907] usbcore: registered new interface driver usbserial
> [   15.832781] usbserial: USB Serial support registered for generic
> [   15.833781] usbcore: registered new interface driver usbserial_generic
> [   15.846829] usbserial: USB Serial Driver core
> [   15.873873] usbserial: USB Serial support registered for Sierra USB modem
> [   15.884997] sierra 2-3:1.0: Sierra USB modem converter detected
> [   15.893244] usb 2-3: Sierra USB modem converter now attached to ttyUSB0
> [   15.894781] sierra 2-3:1.1: Sierra USB modem converter detected
> [   15.898472] usb 2-3: Sierra USB modem converter now attached to ttyUSB1
> [   15.899781] sierra 2-3:1.3: Sierra USB modem converter detected
> [   15.907449] usb 2-3: Sierra USB modem converter now attached to ttyUSB2
> [   15.908781] sierra 2-3:1.4: Sierra USB modem converter detected
> [   15.912571] usb 2-3: Sierra USB modem converter now attached to ttyUSB3
> [   15.913781] usbcore: registered new interface driver sierra
> [   15.914781] sierra: USB Driver for Sierra Wireless USB modems: v.1.7.8
> [   16.136390] usb0: register 'sierra_net' at usb-0000:00:0f.5-3, Sierra
> Wireless USB-Ethernet Modem, 86:bc:8a:7a:01:07
> [   16.137781] usbcore: registered new interface driver sierra_net
> done.
>
>
> 2. Would it be possible to configure ADSL and 3G (eth1 and usb0) to be used
> simultaneously as each others backups? I.e. in case of one interface failing
> the other one gets active and returns when the preferred interface is up
> again.
>
>
>
> Best regards
>
> Anttu
>
>
>
> _______________________________________________
> Voyage-linux mailing list
> Voyage-linux at list.voyage.hk
> http://list.voyage.hk/mailman/listinfo/voyage-linux
>
>



-- 
Jordi Soucheiron
Software Engineer

DEXMA
Parc Tecnològic la Salle
Sant Joan de la Salle, 42
08022 Barcelona
t/f: [+34] 93 181 01 95
www.dexmatech.com
jsoucheiron at dexmatech.com