On Mon, 10 Jan 2000 02:21:38 +0100, Guenter Bietzig wrote:

> On Sun, 26 Dec 1999 12:09:25 +0000, Michael L. Dawley wrote:

>> Hello all,
>> I am wondering why the file ppp.log is not found on
>> a computer that has a successful connection to the
>> internet.
>> On this computer, a Compudyne, I am using Arachne,
>> but on my other computer, the COMPAQ 575, I cannot
>> get past the "no packet driver found" item to connect
>> to the internet, but CAN locate the file ppp.log.
>> I wanted to compare the two, and perhaps modify that
>> file on the COMPAQ 575 to resemble the ppp.log file
>> on this Compudyne, so that the COMPAQ could read the
>> IP address set to message from file PPP.LOG as per
>> the check box in External Dialer setup.

> Hello Michael D. and all COMPAQ's

> the above question was answered by Glenn and Clarence today.

> Now let's make some tests what's going on in the COMPAQ.

> 1. Let see what the COMPAQ does with your COM-ports.

> - Start your machine to pure DOS.
> - type 'debug' (it's in the DOS subdir)
> - type 'd0:400' CR

> you get some lines with hex numbers. We only need the first line:

> 0000:400 F8 03 F8 02 00 00 00 00..............
>     ----- ----- ----- -----
>       ^     ^     ^     ^
> ADDR.    COM1  COM2  COM3  COM4

> Please check what port-address you get in which position.

> 2. Let see what the COMPAQ does with software interrupt 60h
> to load the packet driver.

> - Start your machine to pure DOS.
> - type 'debug' (it's in the DOS subdir)
> - type 'd0:180' CR

> you get some lines with hex numbers. We only need the first line:

> 0000:180 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>     ----------- ----------- ----------- -----------
>          ^           ^           ^           ^
> ADDR.      Int60h      Int61h      Int62h      Int63h

> If there are all zero in it, these interrupts are free, otherwise
> they are used by the COMPAQ :-((
> --------------
> The docs from packet driver:

> SYNOPSIS
>   epppd [ COMn ] [ speed ] [ options ]

> Options:

>   pktvec <irq number>
>          Specifies  the  vector  number  to be hooked by the
>          packet driver interface.  The  valid  range is from
>          0x60-0x66, 0x68-0x6F and  0x78-0x7E. If this option
>          is not used, the driver searches for the first free
>          vector in this range (usually 0x60).
> -------------

> Because Arachne unloads the packet driver with 'termin 0x60'
> (see arachne.bat), I think Arachne does use that option (0x60)
> and installs the packet driver at Int60h.

> I've made the following experiment:
> I've loaded my VGA2hercules screen copy utility to INT60h.
> Then started arachne, connect to my ISP, she hooked the packet
> driver to my used INT60h, and could access the www.
> Then shell'd (ALT-E) to DOS, called my hercules tool and....... crash :-(

> Resume:
> Arachne loads the packet driver, if used by the machine or not, to INT60h.

> Regards

Guenter........Beautifull treatment and synopsis.......!!!!!!!!!!!
      take a bow, .............

                  gregy





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