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Old 05-25-2008, 01:47 AM   #1
eCubeH
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Registered: Jul 2007
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Fedora 9 Connecting Problem with Reliance ZTE MG880 and Huawei EC325 modems


I had both ZTE MG880 and Huawei EC325 modems working with Fedora Core 6. Service provider Reliance, India.

I just upgraded to Fedora 9.

When I try to connect through either modem, it seems the connection is made (Ping) but pppd issues some garbage and Firefox is unable to recognize the connection. The issue seems similar in both cases. Below is some output.

ZTE MG880
ATDT#777
CONNECT
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Sun May 25 09:23:04 2008
--> Pid of pppd: 6053
--> Using interface ppp0
--> pppd: �}( ؇(
--> pppd: �}( ؇(
--> pppd: �}( ؇(
--> local IP address 220.226.50.155
--> pppd: �}( ؇(
--> remote IP address 220.224.135.106
--> pppd: �}( ؇(
--> primary DNS address 202.138.103.100
--> pppd: �}( ؇(
--> secondary DNS address 202.138.96.2
--> pppd: �}( ؇(

Huawei EC325
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: AT+CRM=1
AT+CRM=1
OK
--> Modem initialized.
--> Sending: ATDT#777
--> Waiting for carrier.
ATDT#777
CONNECT 230400
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Sun May 25 11:14:08 2008
--> Pid of pppd: 3230
--> Using interface ppp0
--> pppd: ���[08]���[08]���[08]
--> pppd: ���[08]���[08]���[08]
--> pppd: ���[08]���[08]���[08]
--> local IP address 220.226.70.189
--> pppd: ���[08]���[08]���[08]
--> remote IP address 220.224.135.15
--> pppd: ���[08]���[08]���[08]
--> primary DNS address 202.138.103.100
--> pppd: ���[08]���[08]���[08]
--> secondary DNS address 202.138.96.2
--> pppd: ���[08]���[08]���[08]

Please help.
Bala
 
Old 05-29-2008, 12:25 AM   #2
robing9
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Same problem here

Hi bala

I am also facing the same problem. not sure what to do?

I thing i notioced is that when i ping on the Remote IP: 10.64.64.64.
it doesn't replay any thing.

When i traceroute on the 10.64.64.64 it get dropped after few hops. Our authentication and ip allocation happend correctly but issue is with accesing the remote ip.

Not sure if its a network problem or linux problem.

but the issue started when i installed fedora 9.

(Same problem with both KPPP and wvdial).


Thanks
Robin
 
Old 06-03-2008, 02:57 AM   #3
eCubeH
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Still unresolved

Hi Robin -

Sorry for the delayed reply.

I don't think I can add any value to this discussion, since I know very little about communications and networking. I have posted this on multiple forums but there is no solution yet. The ZTE card used to work fine on Fedora 6.

I should say that in Fedora 9, when I ping on the various IP addresses listed on previous message, I get a response. And I have the modem working on the Windows side, and when I ping the 10.64.64.64 that you listed from a DOS window, there is no response. But I don't really know what I am doing.

Bala
 
Old 06-03-2008, 08:27 PM   #4
eCubeH
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One reply

I posted this on indiabroadband.net under the same header. I got this reply. I have a number of systems on Fedora and I am not eager to make a switch just for this one issue. So still looking for a resolution. After all it worked with FC6.

>>>>>
"I too had the same issue. It seems to be a problem with fedora's pppd than with the modem as the modem works well with other distro's (Tested it in 2 other distro's debian and ubuntu). Switch to debian or something. It should definitely work."
>>>>>
 
Old 06-06-2008, 02:47 AM   #5
robing9
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Quote:
Originally Posted by eCubeH View Post
Hi Robin -

Sorry for the delayed reply.

I don't think I can add any value to this discussion, since I know very little about communications and networking. I have posted this on multiple forums but there is no solution yet. The ZTE card used to work fine on Fedora 6.

I should say that in Fedora 9, when I ping on the various IP addresses listed on previous message, I get a response. And I have the modem working on the Windows side, and when I ping the 10.64.64.64 that you listed from a DOS window, there is no response. But I don't really know what I am doing.

Bala
hi bala

The 10.64.64.64 is the remote ip which will be given to your modenm from ISP when you log in.

In our case (Fedora 9) after trying using pppd, try this command "tail /var/log/messages" you will get the error logged for the pppd as "Connection to remote ip failed: Providing Default IP 10.64.64.64".

Can you send me the remote Ip which gets connected when you use Windows. I think it should not be pointed to 10.64.64.64 in linux it should be the new ip which is happening in windows.


One more help can you tell me where did you download the drivers for windows.
 
Old 06-07-2008, 12:03 AM   #6
eCubeH
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Hi Robin -

i got the ZTE software on a CD (it was in the original box), and it works on both Win XP and Vista.

Here is the output from running it on F9. The /var/log/messages shows the same IPs as from this output (the file is also shown below)

Output.

Modem Port Scan<*1>: S0 S1 S2 S3
WvModem<*1>: Cannot get information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 Z -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
ttyUSB0<*1>: Modem Identifier: ATI -- ZTEiT, Incorporated
ttyUSB0<*1>: Speed 9600: AT -- OK
ttyUSB0<*1>: Max speed is 9600; that should be safe.
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
WvModem<*1>: Cannot get information for serial port.
ttyUSB1<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB1<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB1<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
WvModem<*1>: Cannot get information for serial port.
ttyUSB2<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB2<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB2<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.

Found a modem on /dev/ttyUSB0.
Modem configuration written to /etc/wvdial.conf.
ttyUSB0<Info>: Speed 9600; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Modem initialized.
--> Sending: ATDT#777
--> Waiting for carrier.
ATDT#777
CONNECT
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Sat Jun 7 10:16:22 2008
--> Pid of pppd: 2965
--> Using interface ppp0
--> pppd: �m= �w=
--> pppd: �m= �w=
--> pppd: �m= �w=
--> local IP address 220.226.81.160
--> pppd: �m= �w=
--> remote IP address 220.224.135.73
--> pppd: �m= �w=
--> primary DNS address 202.138.103.100
--> pppd: �m= �w=
--> secondary DNS address 202.138.96.2
--> pppd: �m= �w=

/var/log/messages

Jun 7 10:16:22 localhost pppd[2965]: pppd 2.4.4 started by root, uid 0
Jun 7 10:16:22 localhost pppd[2965]: Using interface ppp0
Jun 7 10:16:22 localhost pppd[2965]: Connect: ppp0 <--> /dev/ttyUSB0
Jun 7 10:16:25 localhost pppd[2965]: PAP authentication succeeded
Jun 7 10:16:26 localhost pppd[2965]: local IP address 220.226.81.160
Jun 7 10:16:26 localhost pppd[2965]: remote IP address 220.224.135.73
Jun 7 10:16:26 localhost pppd[2965]: primary DNS address 202.138.103.100
Jun 7 10:16:26 localhost pppd[2965]: secondary DNS address 202.138.96.2
Jun 7 10:23:45 localhost pppd[2965]: Terminating on signal 15
Jun 7 10:23:45 localhost pppd[2965]: Connect time 7.4 minutes.
Jun 7 10:23:45 localhost pppd[2965]: Sent 2058 bytes, received 3252 bytes.
 
Old 06-07-2008, 12:14 AM   #7
eCubeH
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Can you send me the remote Ip which gets connected when you use Windows. I think it should not be pointed to 10.64.64.64 in linux it should be the new ip which is happening in windows.


Going into Network Connections / CDMA_1X / Properties / Networking (tab) /Internet Protocol --->
the option --- Obtain an IP address automatically --- is set.

I don't know how to check on the Windows side. Can you advise please?
 
Old 09-10-2008, 10:24 PM   #8
eCubeH
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Resolved

After a gap of some 2-3 months, I tried connecting with my ZTE modem, and it works! I get the same unreadable characters in the Terminal, but Firefox is working ok. No idea on what happened in the interim..
 
  


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