Hello

I have attached the installation manual for the USB with some information
related to Linux installation, about how the configuration script is to
edited and some trouble shooting information.

*Linux connection for Internet *
*1. *Log in in the root user.
*2. *Connect the USB modem to PC
*3. *Run terminal in Linux
*4. *type following command.
wvdialconf /etc/wvdial.conf
*5. *wvdialconf will detect the modem,
its maximum baud rate, and a good
initialization string and will generate
or update the wvdial configuration file
based on this information.
*6. *A configuration file will be created as
below
[Dialer Defaults]
Modem = /dev/ttyACM0
Baud = 460800
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2
+FCLASS=0
ISDN = 0
Modem Type = USB Modem
; Phone = <Phone number>
; Username = <Username>
; Password = <Password>
*7. *But the user still need to edit
/etc/wvdial.conf to specify the phone
number, login name, and password of
your internet account in order for
wvdial to work.
------------------------------------------------------------------------
*Page 14*

Troubleshooting
*26*
Linux
*25*
*8. *User should edit the configuration file
as given below.
[Dialer Defaults]
Modem = /dev/ttyACM0
Baud = 460800
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2
+FCLASS=0
ISDN = 0
Modem Type = USB Modem
Phone = #777
Username = internet
Password = internet
stupid mode = 1
*How to connect Internet*
*1. *Open the terminal.
*2. *Type wvdial and press enter.

Hope this helps in trouble shooting the issue.

Sivasubramanaian Muthusamy

>On Wed, Dec 17, 2008 at 7:18 PM, Sivasubramanian Muthusamy <
isolatedn at gmail.com> wrote:
>Hello Moinak,

>3. I recollect having a similar problem about ten years ago when a vsnl
internet connection on a windows machine got frequently disconnected. I
>remember that the customer support asked me to insert a (chat) script
somewhere, so i asked the  Tata Indicom technical person if they specify any
>particular string while setting up the modem in windows.

>He told me that the script specified is  at+crm=1 . In the tata indicom
solaris settings I find

>send (atz^M)

>and at another place

>send (ATDT#777^M)

>If we modify (or add somewhere) the script to read as send (at+crm=1) would
it solve the problem?

>( Tata indicom user name is 'internet', password is 'internet', phone
number is '#777' harware is 'usb 230400' )




On Wed, Dec 17, 2008 at 9:26 PM, Sivasubramanian Muthusamy <
isolatedn at gmail.com> wrote:

> Hello Sanjeev,
>
> I copied a PART of the snoop? output from the terminal while you were
> diagnosing the problem. The file is attached.
>
> On the problems with the laptop, I don't feel that there is any related to
> the USB ports. The problems related to the mouse cursor and keyboard are not
> really because of defective components but rather due to an unprofessional
> hardware installation  and is something that can easily be fixed. This is to
> say that it is unlikely that the connectivity problems are due to any
> defects in the USB ports.
>
> I also feel that it is unlikely that the problem is due to poor signal
> strength. This inference is because a) I have faced exactly the same problem
> at Erode and at two locations in Bangalore ( MG Road / Divyashree ), at two
> different location in Hyderabad, at Chennai and at other locations.
>
> The problem may also not be due to any flaw in the solaris network stack.
> It is possible that Tata Indicom is constantly sending in some sort of
> automated query/acknowledgment packets to ascertain if the connection is
> active and at their end the equipments there are unable to understand the
> responses from Soalris? Those who designed the exchanges between the Tata
> Indicom network and the client have probably designed it only for Windows
> ??  Some interaction may be necessary with Tata Indicom USB support to
> resolve this issue.
>
> Thanks
>
> Sivasubramanian Muthusamy
>
>
> On Wed, Dec 17, 2008 at 8:42 PM, Sanjeev <sanjeev.bagewadi at sun.com> wrote:
>
>> Siva/Moinak,
>>
>> Here is an update on what I observed yesterday :
>>
>> - The scripts pick up the default DNS servers provided by TataIndicom.
>>  I found that the DNS servers stopped responding after sometime (approx 1
>> min.)
>>
>> - So, we added Ip addresses for a few locations in /etc/hosts and things
>> started
>>  working well. Also, we added the public DNS servers as well.
>>  This worked for a while.
>>
>>  However, later we observed that things stopped working and after multiple
>>  restarts things worked but were flaky.
>>
>> Now, from my observations I think there are a few factors which could be
>> affecting this :
>> - As Siva said there could be problems with the negotiations that Solaris
>> does.
>>  I am not convinced because, when I tested it on another laptop here and
>> it
>>  stayed up for atleast a couple of hours.
>>
>> - There is something in Solaris network stack which does not work well.
>>  Again I am not convinced because, when I ran snoop I saw that the pkts
>> were
>>  being sent out to the router configured. (Unless snoop was faking it :-)
>>
>> - The signal strength could be varying and probably we are dropping the
>> link
>>  often. I say this because, I saw that the modem did show Amber light
>>  occasionally (which I presume is an indication that it is negotiating).
>>
>> - The USB port/connection could have problems. I learnt that it is
>> engineering
>>  piece. We found that the trackpad had some issues.
>>
>> It would really interesting to debug this issue. Also, it would be useful
>> to
>> hear from other who have used similar configs.
>>
>> Thanks and regards,
>> Sanjeev.
>>
>> On Wed, Dec 17, 2008 at 07:18:39PM +0530, Sivasubramanian Muthusamy wrote:
>> > Hello Moinak,
>> >
>> > I have updated the O/S with the 08.11 open solaris version and untarred
>> the
>> > ppp.tar file and again the problem remains what it is.
>> >
>> > Sanjeev monitored the problem for over an hour with a battery of
>> diagnostic
>> > tests. May be he could share his observations with the details of the
>> > commands that he tried.
>> >
>> > There are two problems:
>> >
>> > 1. There is a block at the DNS level after about a minute of connection.
>> > Using the IP addresses of the website in the address bar retrieves the
>> site
>> > faster.
>> >
>> > 2. But the modem hangs after a minute anyway.  After a minute the
>> terminal
>> > partially responds to the ifconfig -a command. Can this problem be fully
>> > sorted out by inserting a script ? specifying opendns server addresses.
>> How
>> > would I insert the script and how would I specify that the script loads
>> > automatically without the need to do it manually everytime? Also, I
>> could
>> > maintain a list of frequently accessed sites at the /etc/hosts file.
>> >
>> > 3. I recollect having a similar problem about ten years ago when a vsnl
>> > internet connection on a windows machine got frequently disconnected. I
>> > remember that the customer support asked me to insert a (chat) script
>> > somewhere, so i asked the  Tata Indicom technical person if they specify
>> any
>> > particular string while setting up the modem in windows.
>> >
>> > He told me that the script specified is  at+crm=1 . In the tata indicom
>> > solaris settings I find
>> >
>> > send (atz^M)
>> >
>> > and at another place
>> >
>> > send (ATDT#777^M)
>> >
>> > If we modify (or add somewhere) the script to read as send (at+crm=1)
>> would
>> > it solve the problem?
>> >
>> > ( Tata indicom user name is 'internet', password is 'internet', phone
>> number
>> > is '#777' harware is 'usb 230400' )
>> >
>> > 4.  The other possibility is that the Tata Indicom gateway equipment
>> finds
>> > the negotiation from a solaris machine unfamiliar, so it severes the
>> > connection after a minute not knowing what to do ???
>> >
>> > Sivasubramanian Muthusamy
>> >
>> > On Tue, Dec 16, 2008 at 4:49 PM, Moinak Ghosh <moinakg at belenix.org>
>> wrote:
>> >
>> > > You can use the following DNS server addresses:
>> > > 208.67.222.222
>> > > 208.67.220.220
>> > >
>> > > These are OpenDNS servers and always work for me.
>> > >
>> > > Regards,
>> > > Moinak.
>> > >
>> > > On Tue, Dec 16, 2008 at 4:08 PM, Sivasubramanian Muthusamy
>> > > <isolatedn at gmail.com> wrote:
>> > > > Hello Moinak,
>> > > >
>> > > > I have not enabled dns/client but somehow the tata indicom
>> connected,
>> > > > the browser works for a while but approximately after a minute, the
>> > > > modem stops responding. Sanjeev looked at my laptop and has found
>> that
>> > > > the problem relates to the DNS servers specified. Queries are sent
>> out
>> > > > to the DNS servers and the DNS queries are not resolved.
>> > > >
>> > > > So firefox loads a page once, and then it stops working because
>> > > > further DNS queries are unresolved. Instead of sending a DNS query,
>> if
>> > > > an IP address is specified, the USB works just fine.
>> > > >
>> > > > Sanjeev says that the DNS addresses specified in the Open Solaris
>> > > > settings are the numbers of public domain DNS servers. Perhaps we
>> can
>> > > > obtain the Tata Indicom DNS servers and if the problem is resolved
>> by
>> > > > specifying Tata Indicom DNS addresses, then probably the Tata
>> Indicom
>> > > > USB is configured to work only with the Tata Indicom DNS servers ?
>> > > >
>> > > > (Sent from the Solaris laptop with tata usb)
>> > > >
>> > > > On 12/3/08, Moinak Ghosh <moinakg at belenix.org> wrote:
>> > > >> On Wed, Dec 3, 2008 at 7:12 AM, Sivasubramanian Muthusamy
>> > > >> <isolatedn at gmail.com> wrote:
>> > > >>> Hello,
>> > > >>>
>> > > >>> Followed the steps outline by Moinak
>> > > >>>
>> > > >>>   cp /etc/nsswitch.dns /etc/nsswitch.conf
>> > > >>>   Now enable dns/client and update /etc/resolv.conf
>> > > >>>   svcadm restart name-service-cache
>> > > >>>
>> > > >>> but a problem with the command update /etc/resolv.conf Some
>> problems
>> > > >>> remain,
>> > > >>> may have to do with the poor bandwidth ..
>> > > >>
>> > > >>    "update /etc/resolv.conf" is not a command. It is English :-)
>> This
>> > > >> meant follow
>> > > >>    the instructions to add "nameserver ..." entries into
>> > > /etc/resolv.conf.
>> > > >>
>> > > >> Regards,
>> > > >> Moinak.
>> > > >> --
>> > > >> ================================
>> > > >> http://www.belenix.org/
>> > > >> http://moinakg.wordpress.com/
>> > > >> _______________________________________________
>> > > >> ug-bosug mailing list
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>> > > >> List-Archives:
>> http://www.opensolaris.org/jive/forum.jspa?forumID=54
>> > > >>
>> > > >
>> > > >
>> > > > --
>> > > > Sivasubramanian Muthusamy
>> > > > http://www.linkedin.com/in/sivasubramanianmuthusamy
>> > > > http://www.circleid.com/members/3601/
>> > > > http://twitter.com/isocchennai
>> > > > _______________________________________________
>> > > > ug-bosug mailing list
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>> > > > List-Archives:
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>> > > >
>> > >
>> > >
>> > >
>> > > --
>> > > ================================
>> > > http://www.belenix.org/
>> > > http://moinakg.wordpress.com/
>> > > _______________________________________________
>> > > ug-bosug mailing list
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>> > >
>> >
>> >
>> >
>> > --
>> > Sivasubramanian Muthusamy
>> > http://www.linkedin.com/in/sivasubramanianmuthusamy
>> > http://www.circleid.com/members/3601/
>> > http://twitter.com/isocchennai
>>
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>
>
>
> --
> Sivasubramanian Muthusamy
> http://www.linkedin.com/in/sivasubramanianmuthusamy
> http://www.circleid.com/members/3601/
> http://twitter.com/isocchennai
>
>


-- 
Sivasubramanian Muthusamy
http://www.linkedin.com/in/sivasubramanianmuthusamy
http://www.circleid.com/members/3601/
http://twitter.com/isocchennai
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