Recently I bought an MTNL 3G internet connection to add some redundancy to my internet connectivity stack. As I use, Following is how I got it running in FreeBSD
(8.2-RELEASE
) with the help from a similar HOWTO for GNU/Linux.
1. Plugin the device. Following is the dmesg
output after plugging in the device (Teracom LW272):
umass0: <6227--Storage> on usbus4 umass0: SCSI over Bulk-Only; quirks = 0x0000 umass0:0:0:-1: Attached to scbus0 ugen4.2: <D-88n> at usbus4 (disconnected) umass0: at uhub4, port 1, addr 2 (disconnected) usb_alloc_device: Found possible auto-install disk (trying next config) ugen7.2: <HSPADataCard> at usbus7 umass0: <HSPADataCard > on usbus7 umass0: SCSI over Bulk-Only; quirks = 0x0000 umass0:0:0:-1: Attached to scbus0 (probe0:umass-sim0:0:0:0): TEST UNIT READY. CDB: 0 0 0 0 0 0 (probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error (probe0:umass-sim0:0:0:0): SCSI status: Check Condition (probe0:umass-sim0:0:0:0): SCSI sense: UNIT ATTENTION asc:28,0 (Not ready to ready change, medium may have changed) cd0 at umass-sim0 bus 0 scbus0 target 0 lun 0 cd0: <HSPAData CD-ROM 0000> Removable CD-ROM SCSI-0 device cd0: 40.000MB/s transfers cd0: cd present [8982 x 2048 byte records] (probe0:umass-sim0:0:0:1): TEST UNIT READY. CDB: 0 20 0 0 0 0 (probe0:umass-sim0:0:0:1): CAM status: SCSI Status Error (probe0:umass-sim0:0:0:1): SCSI status: Check Condition (probe0:umass-sim0:0:0:1): SCSI sense: NOT READY asc:3a,0 (Medium not present) da0 at umass-sim0 bus 0 scbus0 target 0 lun 1 da0: <HSPAData SD Card 0000> Removable Direct Access SCSI-0 device da0: 40.000MB/s transfers da0: Attempt to query device size failed: NOT READY, Medium not present
2. Load umodem
kernel module to recognize the modem in the device, no usb_modeswitch
(or its equivalent) required:
chateau.d.if!abbe:~ % sudo kldload umodem Password: chateau.d.if!abbe:~ % dmesg|tail -4 umodem0: <HSPADataCard USB Modem1> on usbus7 umodem0: data interface 2, has CM over data, has break umodem1: <HSPADataCard USB Modem2> on usbus7 umodem1: data interface 4, has CM over data, has break
3. Add following lines ppp.conf
for dialing, in my case for prepaid connection (APN: gprsppsdel
):
mtnl: set device /dev/cuaU0 # USB modem device node created after loading umodem set speed 460800 set phone "*99#" set authname mtnl set authkey mtnl123 accept PAP accept CHAP set dial "ABORT BUSY ABORT NO\\sCARRIER \ \"\" AT OK-AT-OK \ ATEQV1 OK \ AT+CFUN=6 OK \ AT+CGDCONT=1,\\\"ip\\\",\\\"gprsppsdel\\\" OK \\dATDT\\T CONNECT" set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.255 0.0.0.0 add default HISADDR disable dns disable ipv6cp disable mppe enable lqr
4. Start dialer:
chateau.d.if!abbe:~ % sudo ppp -ddial mtnl Working in ddial mode Using interface: tun0
(wait for 5-10 seconds)
chateau.d.if!abbe:~ % ifconfig tun0 tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500 options=80000<LINKSTATE> inet 59.179.150.204 --> 10.0.0.2 netmask 0xffffffff Opened by PID 12379 chateau.d.if!abbe:~ % curl http://checkip.dyndns.org/ <html><head><title>Current IP Check</title></head><body>Current IP Address: 59.179.150.204</body></html>
I’m planning to use it with mpd5, will post the instructions when I’m done setting it up.