Re: ofono-tests internet context: DNS works, ping wget and ssh do not (Connection Refused)

[Denis Kenzior <denis.kenzior@intel.com>]

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Hi Darren,

On 05/09/2012 05:46 PM, Darren Hart wrote:
> I have successfully used ofono-tests to  enable,online,activate,and
> create-internet-context. I have an IP address and added the opendns servers. DNS
> appears to be working and the route looks sane-ish.
> 

Please keep in mind that oFono is only signaling settings to an external
component (e.g. a connection manager like ConnMan).  So route
assignment, DNS entry assignment, etc are not done by oFono.  oFono only
brings up the interface and assigns the local IPv4 address.

> However, ping, wget, and ssh all fail. ping just sits there, wget and ssh both
> fail with Connection Refused.
> 
> Is there something obvious/common I might be running into?
> 
> I'm using ofono 1.5. The steps I took for context follow:
> 
> # ./enable-modem
> Connecting modem /mbm_0...
> 
> # ./online-modem
> Setting modem /mbm_0 online...
> 
> # ./activate-context
> 

These steps are fine, is your context pre-configured already?  What does
the output of list-contexts look like?

> # ./create-internet-context
> Found context /mbm_0/context1
> 

Generally you do this _before_ activate_context and you give parameters
for the context settings.  e.g. create-internet-context
"apn.operator.com" "username" "password"

> # ifconfig usb0
> usb0      Link encap:Ethernet  HWaddr 02:80:37:EC:02:00
>           inet addr:10.25.40.80  Bcast:10.25.40.95  Mask:255.255.255.224
>           inet6 addr: fe80::80:37ff:feec:200/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:6 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:41 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:846 (846.0 B)  TX bytes:28270 (27.6 KiB)

That looks good.

> 
> # cat /etc/resolv.conf 
> # Generated by Connection Manager
> nameserver 208.67.222.222
> nameserver 208.67.220.220
> nameserver 127.0.0.1
> 
> # route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> 0.0.0.0         10.25.40.66     0.0.0.0         UG    0      0        0 usb0
> 10.25.40.64     0.0.0.0         255.255.255.224 U     0      0        0 usb0
> 10.25.40.66     0.0.0.0         255.255.255.255 UH    0      0        0 usb0
> 172.18.7.170    10.25.40.66     255.255.255.255 UGH   0      0        0 usb0
> 

The route assignment seems fine, I assume you're using connman?

> # ping dvhart.com                                     
> PING dvhart.com (184.154.165.98): 56 data bytes                                    
> ^C                                                                                 
> --- dvhart.com ping statistics ---                                                 
> 1 packets transmitted, 0 packets received, 100% packet loss          
> 
> # wget http://www.dvhart.com/darren/hello             
> Connecting to www.dvhart.com (184.154.165.98:80)                                   
> wget: can't connect to remote host (184.154.165.98): Connection refused
> 
> # ssh dvhart(a)dvhart.com                               
> ssh: Exited: Error connecting: Connection refused
> 
> After disabling usb0 and bringup eth0, all of the above commands work as
> expected.
> 
> 
> And finally, I saved the output of list-modems off, but I don't recall
> when in the process, but I'm including it for the modem information, etc:
> 
> # ./list-modems 
> [ /mbm_0 ]
>     Features = gprs net cbs ussd gps sms stk rat sim 
>     Emergency = 0
>     Powered = 1
>     Lockdown = 0
>     Interfaces = org.ofono.ConnectionManager org.ofono.NetworkRegistration org.ofono.CellBroadcast org.ofono.SupplementaryServices org.ofono.LocationReporting org.ofono.SmartMessaging org.ofono.PushNotification org.ofono.MessageManager org.ofono.SimToolkit org.ofono.RadioSettings org.ofono.SimManager 
>     Online = 1
>     Model = F5521gw
>     Revision = R2A07(R2A07)
>     Type = hardware
>     Serial = 356215040140315
>     Manufacturer = Ericsson
>     [ org.ofono.ConnectionManager ]
>         Powered = 1
>         Attached = 1
>         Bearer = none
>         Suspended = 0
>         RoamingAllowed = 0
>     [ org.ofono.NetworkRegistration ]
>         Status = registered
>         Strength = 80
>         Name = AT&T
>         LocationAreaCode = 33998
>         Mode = auto-only
>         MobileCountryCode = 310
>         Technology = hspa
>         CellId = 13805302
>         MobileNetworkCode = 410

I see you're on AT&T.  What APN are you using, the WAP-only APN or
something that allows actual internet connections?

>     [ org.ofono.CellBroadcast ]
>         Topics = 
>         Powered = 1
>     [ org.ofono.SupplementaryServices ]
>         State = idle
>     [ org.ofono.LocationReporting ]
>         Type = nmea
>         Enabled = 0
>     [ org.ofono.SmartMessaging ]
>     [ org.ofono.PushNotification ]
>     [ org.ofono.MessageManager ]
>         Alphabet = default
>         UseDeliveryReports = 0
>         Bearer = cs-preferred
>         ServiceCenterAddress = +13123149810
>     [ org.ofono.SimToolkit ]
>         IdleModeIcon = 
>         MainMenuTitle = 
>         MainMenu = 
>         MainMenuIcon = 
>     [ org.ofono.RadioSettings ]
>         TechnologyPreference = any
>     [ org.ofono.SimManager ]
>         Retries = [pin2 = 3] [puk2 = 10] [pin = 3] [puk = 10] 
>         MobileCountryCode = 310
>         FixedDialing = 0
>         SubscriberNumbers = 
>         PreferredLanguages = en 
>         BarredDialing = 0
>         CardIdentifier = 89014104254691314226
>         LockedPins = 
>         MobileNetworkCode = 410
>         SubscriberIdentity = 310410469131422
>         Present = 1
>         PinRequired = none
> 

This looks sane?

Regards,
-Denis