Re: [lwip-users] Re: lwip-users Digest, Vol 11, Issue 4

[Michael Broughton]

if the PPP link is up and running, the debug output for PPP, LCP, IPCP, 
PAP, ect. should make it quite obvious. also, the callback that i referred 
to you will let you know when PPP is connected, and it will even pass you 
your new ip address as one of the arguments.

dont bother trying to "ping" your device. since you are connecting through 
GPRS, there will be a firewall between your device and the internet. you 
will have to come up with another sollution to that.

anyway, it sounds like you have lots of code to read, so ill leave you to 
it... i hope you have a good debugger!


Mike



At 03:05 AM 08/07/2004, you wrote:
> Hi Mike,
>
> For starters, I modified "sio_open(int devnum)" in "src\ecos\sio.c", so that
> it connects to my GPRS ISP provider, and sleeps a while before continuing..
> I think a connection is established, but I am not 100% sure.
>
> I have enabled the debug and statistics, but the debug messages don't states
> the IP assigned from the ISP.
>
> Where can I find the IP - so I can test with ping from my windows host.
>
> Thanks
> Felix
>
>
> What I did - for starters -
>
>
> > I don't have an example that I can show you but it's not really that
> > complicated. I'm going to assume that you have lwip all set up and ready
> to
> > go; in other words, you have all the sysarch, lwipopts, and sio stuff in
> > working order. If that is the case, there a four routines that you should
> > take a look at in ppp.c:
> >
> > pppInit() - Call this once when you system starts. I call this from my
> > sys_init() routine.
> > pppSetAuth() - Use this to set a user name and password for PAP or CHAP,
> if
> > you have either of them enabled (look in your lwip opts files).
> > pppOpen() - Creates a new thread and tells it to start PPP. This new
> thread
> > will let you know what's going on with the PPP connection via the callback
> > that you must specify for the first argument.
> > pppClose() - Brings down the PPP link and ends the PPP thread.
> >
> > You should be able to ignore just about everything else, unless you need
> to
> > do some debugging. Anyway, this is basically what you need to do:
> >
> > 1. Initialize your system and lwip (including pppInit()).
> > 2. Open your comm port.
> > 3. Dial your modem and wait for it to connect.
> > 4. call pppSetAuth() and pppOpen().
> > 5. wait for PPP to tell you it is open (or if it failed for whatever
> reason).
> > 6. now you should be on-line. do your thing.
> > 7. call pppClose and close your comm port.
> >
> > That should get you started. Just make sure you read and understand
> exactly
> > what those four routines (the ones i outlined above) are doing.
> >
> >
> > Mike
> >
> >
> > At 07:09 PM 03/07/2004, you wrote:
> > >Hi
> > >
> > >I am trying to get lwIP with PPP up and running on my ARM devboard. Does
> > >anyone have some working PPP examples?
> > >
> > >Thanks
> > >Felix
> > >
> > >
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> >
> >
> >
> >
> >
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> > End of lwip-users Digest, Vol 11, Issue 4
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