TL-MR3420 24 sp2 std 20453svn USB support

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regpas
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Joined: 16 Jan 2013
Posts: 3

PostPosted: Sat Jan 26, 2013 21:50    Post subject: TL-MR3420 24 sp2 std 20453svn USB support Reply with quote
Hi, sorry for my english: I'm an italian beginner on dd-wrt.
Last week , on my tl-mr3420, i have installed dd-wrt 24-sp2 svn 20453 to use router with huawey 353s2 modem.
It's ok. Due to nat of local provider (wind italy) i'm try to use openvpn, but in services -->VPN there is only PPTP option.
By usb and usb storage wiki and "mounting usb drive without located onboard fs modules" I think is posible connect a usb storage to use router for running optware. I was not able to mount usb storage.
On usb port I would like to insert 3G usb modem with integrated 8 Gb sd card.
Following content of dmesg command

dmesg
....
[ 15.130000] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
<6>[ 15.140000] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
<6>[ 15.150000] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
<6>[ 15.160000] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)
<6>[ 18.990000] device ath0 entered promiscuous mode
<6>[ 19.330000] br0: port 3(ath0) entered forwarding state
<6>[ 19.340000] br0: port 3(ath0) entered forwarding state
<6>[ 21.300000] usbcore: registered new interface driver cdc_acm
<6>[ 21.300000] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
<6>[ 21.340000] br0: port 3(ath0) entered forwarding state
<6>[ 21.410000] usbcore: registered new interface driver usbserial
<6>[ 21.410000] usbcore: registered new interface driver usbserial_generic
<6>[ 21.420000] USB Serial support registered for generic
<6>[ 21.430000] usbserial: USB Serial Driver core
<6>[ 21.600000] usbcore: registered new interface driver sierra
<6>[ 21.610000] USB Serial support registered for Sierra USB modem
<6>[ 21.650000] usbcore: registered new interface driver option
<6>[ 21.660000] USB Serial support registered for GSM modem (1-port)
<6>[ 22.920000] etherip: Ethernet over IPv4 tunneling driver
<6>[ 24.900000] usb 1-1: new high-speed USB device number 2 using ar71xx-ehci
<6>[ 25.060000] scsi0 : usb-storage 1-1:1.0
<6>[ 25.070000] scsi1 : usb-storage 1-1:1.1
<5>[ 26.060000] scsi 0:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
<5>[ 26.070000] scsi 1:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
<4>[ 26.080000] sr0: scsi-1 drive
<6>[ 26.080000] cdrom: Uniform CD-ROM driver Revision: 3.20
<7>[ 26.090000] sr 0:0:0:0: Attached scsi CD-ROM sr0
<5>[ 26.090000] sd 1:0:0:0: [sda] Attached SCSI removable disk
<4>[ 53.440000] usb 1-1: usbfs: process 1301 (usb_modeswitch) did not claim interface 0 before use
<6>[ 53.460000] usb 1-1: USB disconnect, device number 2
<6>[ 68.170000] usb 1-1: new high-speed USB device number 3 using ar71xx-ehci
<6>[ 68.320000] option 1-1:1.0: GSM modem (1-port) converter detected
<6>[ 68.330000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
<6>[ 68.330000] option 1-1:1.2: GSM modem (1-port) converter detected
<6>[ 68.340000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
<6>[ 68.350000] option 1-1:1.3: GSM modem (1-port) converter detected
<6>[ 68.350000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
<6>[ 68.370000] scsi2 : usb-storage 1-1:1.4
<6>[ 68.390000] scsi3 : usb-storage 1-1:1.5
<5>[ 69.380000] scsi 2:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
<5>[ 69.390000] scsi 3:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
<4>[ 69.400000] sr0: scsi-1 drive
<7>[ 69.400000] sr 2:0:0:0: Attached scsi CD-ROM sr0
<5>[ 69.400000] sd 3:0:0:0: [sda] Attached SCSI removable disk
<5>[ 3651.930000] sd 3:0:0:0: [sda] 15523840 512-byte logical blocks: (7.94 GB/7.40 GiB)
<5>[ 3651.940000] sd 3:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
<6>[ 3651.970000] sda: sda1


on sd 3:0:0:0 it was recognized.
what can I do? thanks in advance
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PostPosted: Sun Jan 27, 2013 1:43    Post subject: Re: TL-MR3420 24 sp2 std 20453svn USB support Reply with quote
regpas wrote:
Due to nat of local provider (wind italy) i'm try to use openvpn, but in services -->VPN there is only PPTP option.


Most (if not all) mobile network operators issues a private ip to their customers, it is not something special for wind.it

regpas wrote:

By usb and usb storage wiki and "mounting usb drive without located onboard fs modules" I think is posible connect a usb storage to use router for running optware. I was not able to mount usb storage.


The flash memory of MR3420 is small and is already full, there is no room for the quite big VPN module and there is no room for file system drivers.
This router is a 3G router so priority has been 3G modem support.

You can try to make a PPTP connection to your tunnel provider over the standard WAN connection but I don't think you will get any better speed than a few Mbps, the routers cpu has to do crypto in software which takes lots of cpu resources.

When using 3G as WAN then the router is additionally busy with USB communication to your 3G stick and with the ppp module arranging serial modem data into ethernet frames so the resulting tunnel throughput for a 3G connection will likely be below 1Mbps.

This is not a router suitable for a combination of 3G and VPN, the cpu is too weak for that!

_________________
Kernel panic: Aiee, killing interrupt handler!
regpas
DD-WRT Novice


Joined: 16 Jan 2013
Posts: 3

PostPosted: Sun Jan 27, 2013 14:52    Post subject: Reply with quote
thanks for quick and accurate response.
regpas
DD-WRT Novice


Joined: 16 Jan 2013
Posts: 3

PostPosted: Sat Mar 02, 2013 0:02    Post subject: Reply with quote
which router is the right choise to combine 3G and VPN? Thanks in advance.
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