On the ADSL note, I've read in today's Yediot Achronot that
"Microsoft and Orckit fixed the serious problems with Orckit's ADSL
equipment and Windows ME." They say a fix is available on Microsoft's
site... this might be relevant.
You guys might want to bug Orckit to fix the firmware on their lousy
modems, too. There's nothing wrong with the LCP options that pppd sends,
except that the Orckit modem might not understand 'asyncmap' (hey,
it's not on RFC1661, but nobody bothered either reading the IETF pppext
drafts or implementing standard unknown option rejection). I have
parsed this information from the captures (Windows vs. Linux) that mulix
sent me:
The options in the first LCP (id 0) packet sent by a Windows dialer
(ordered as they appear in the packet):
- Magic-Number (32-bit number)
- Protocol-Field-Compression on
- Address-and-Control-Field-Compression on
- Callback value 6 (meaning CBCP will determine callback)
- Multilink-MRRU (Max-Recieved-Reconstructed-Unit), value 0x064e (1614)
- Multilink-Endpoint-Descriminator (with a class 1 [locally
assigned] address 22 bytes long)
The linux pppd first LCP (id 1, unlike Windows' id 0):
(the lousy Orckit modem never replies to this LCP message)
- Asyncmap 0x00000000
- Magic-Number (32-bit number)
- Protocol-Field-Compression on
- Address-and-Control-Field-Compression on
If I had to fix this, I'd first set the id of the first LCP packet pppd
sends to zero. This is exactly the kind of stupid bugs people would make
and never test for, and it takes about 2 seconds to rig pppd to use 0
(ie change line 708 in fsm.c from "f->reqid = ++f->id" to "f->reqid =
f->id++" or something like that)
If this fails, I'd get rid of the asyncmap as well ('pppd -am' should do
this). And if -that- failed, I'd add multilink, and finally, callback.
It seems odd to me that nobody fixed the pppd yet. I don't have ADSL,
but a good friend of mine does, and obviously not a few people on this
list. Surely there must be some protocol guru with interest of fixing
this.. reverting to Windows is not an option.
On Sun, 28 Jan 2001, mulix wrote:
> Hi Lior,
>
> attached to this email is an updated version of the ADSL howto, covering
> what we know about the problem you ran into. In short, there are several
> kinds of orckit ADSL modems, one of whom works with Linux in the default
> configuration (pptp with the trivial patch) and one of whom requires a
> patched pptp and a patched pppd to (maybe) work.
>
> > Lior David wrote:
> >
> > Hello,
> > I have a problem connecting to the ADSL service from Linux. I have
> > tried everything I know and I simply can't get it to work. Maybe some
> > of the ADSL experts here will have an idea...
>
> --
> mulix
>
> linux/reboot.h: #define LINUX_REBOOT_MAGIC1 0xfee1dead
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