Bringing PocketPC with SynCE to Linux and Internet

Hello all,

I am failing to route a ppp connection to an ethernet Internet
connection. Starting at the beginning:
I have connected a PocketPC in the USB craddle via ppp and synce to a
linux box.

Now I am able to ping form the PocketPC to the ppp linux ip address and
vice versa.

I am not able to ping the linux ethernet ip address and internet.

Programm route seems to work and firewall is down.

Any hints?

Thank you in advance,
Gerrit Leder

Gerrit Leder wrote:

> Hello all,
>
> I am failing to route a ppp connection to an ethernet Internet
> connection. Starting at the beginning:
> I have connected a PocketPC in the USB craddle via ppp and synce to a
> linux box.
>
> Now I am able to ping form the PocketPC to the ppp linux ip address and
> vice versa.
>
> I am not able to ping the linux ethernet ip address and internet.
>
> Programm route seems to work and firewall is down.
>
> Any hints?
>
> Thank you in advance,
> Gerrit Leder
Hello Gerrit,

if no firewall is active, then you propably have not enabled ip forwarding.
Check with
cat /proc/sys/net/ipv4/ip_forward
If it says 0 then do
echo "1">/proc/sys/net/ipv4/ip_forward
With kind regards, Alex

Alexander Harsch wrote:
> Gerrit Leder wrote:
>
>
>>Hello all,
>>
>>I am failing to route a ppp connection to an ethernet Internet
>>connection. Starting at the beginning:
>>I have connected a PocketPC in the USB craddle via ppp and synce to a
>>linux box.
>>
>>Now I am able to ping form the PocketPC to the ppp linux ip address and
>>vice versa.
>>
>>I am not able to ping the linux ethernet ip address and internet.
>>
>>Programm route seems to work and firewall is down.
>>
>>Any hints?
>>
>>Thank you in advance,
>>Gerrit Leder
>
> Hello Gerrit,
>
> if no firewall is active, then you propably have not enabled ip forwarding.
> Check with
> cat /proc/sys/net/ipv4/ip_forward
> If it says 0 then do
> echo "1">/proc/sys/net/ipv4/ip_forward
> With kind regards, Alex

Thank you for your tip. I double checked that and it makes no difference
for the pda, when pinging the laptop/internet. Here I add the output of
the route command:

Kernel IP Routentabelle
Ziel Router Genmask Flags Metric Ref Use
Iface
192.168.131.201 * 255.255.255.255 UH 0 0 0 ppp0
192.168.0.0 * 255.255.255.0 U 0 0 0 eth0
default 192.168.0.1 0.0.0.0 UG 0 0 0 eth0

I should reach eth0 and the router to the net with ip address 192.168.0.1

Perhaps it has something to do with ppp (auto) configuration, which I am
unaware of.

Thank you again,
Gerrit

Gerrit Leder wrote:
> Alexander Harsch wrote:
>
>> Gerrit Leder wrote:
>>
>>
>>> Hello all,
>>>
>>> I am failing to route a ppp connection to an ethernet Internet
>>> connection. Starting at the beginning:
>>> I have connected a PocketPC in the USB craddle via ppp and synce to a
>>> linux box.
>>>
>>> Now I am able to ping form the PocketPC to the ppp linux ip address and
>>> vice versa.
>>>
>>> I am not able to ping the linux ethernet ip address and internet.
>>>
>>> Programm route seems to work and firewall is down.
>>>
>>> Any hints?
>>>
>>> Thank you in advance,
>>> Gerrit Leder
>>
>>
>> Hello Gerrit,
>>
>> if no firewall is active, then you propably have not enabled ip
>> forwarding.
>> Check with cat /proc/sys/net/ipv4/ip_forward
>> If it says 0 then do
>> echo "1">/proc/sys/net/ipv4/ip_forward
>> With kind regards, Alex
>
>
> Thank you for your tip. I double checked that and it makes no difference
> for the pda, when pinging the laptop/internet. Here I add the output of
> the route command:
>
> Kernel IP Routentabelle
> Ziel Router Genmask Flags Metric Ref Use
> Iface
> 192.168.131.201 * 255.255.255.255 UH 0 0 0
> ppp0
> 192.168.0.0 * 255.255.255.0 U 0 0 0
> eth0
> default 192.168.0.1 0.0.0.0 UG 0 0 0
> eth0
>
> I should reach eth0 and the router to the net with ip address 192.168.0.1
>
> Perhaps it has something to do with ppp (auto) configuration, which I am
> unaware of.
>
> Thank you again,
> Gerrit

I have found answer myself on:
synce.sourceforge.net/synce/ip_forward.php


now skype is working on pocketpc through laptop internet connection.

Bye and thanks again
Gerrit