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

[Felix]

Hi Mike,

Thanks - btw. there is no firewall, so ping should be no problem.

Felix

----- Original Message ----- 
From: "Michael Broughton" <address@hidden>
To: "Mailing list for lwIP users" <address@hidden>
Sent: Thursday, July 08, 2004 11:59 AM
Subject: Re: [lwip-users] Re: lwip-users Digest, Vol 11, Issue 4


> 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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