Re: Need guidance developing NIC driver

OTOH how router will decide to what adapter will be packet send if both have
the same IP , how to different subnets with have two adapters with the same
IP ?
Arkady

"Maxim S. Shatskih" <maxim@xxxxxxxxxxxxxxxx> wrote in message
news:%23H6rikikFHA.1416@xxxxxxxxxxxxxxxxxxxxxxx
> MUX-style driver 1-to-N is a solution. The MUX sample itself is N-to-1
> (many virtual Ethernets on top of 1 physical).
>
> --
> Maxim Shatskih, Windows DDK MVP
> StorageCraft Corporation
> maxim@xxxxxxxxxxxxxxxx
> http://www.storagecraft.com
>
> "Pavman" <William.Pav@xxxxxxxxxx> wrote in message
> news:1122390107.442502.195520@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> All,
>>
>> I've been tasked to look into writing a Network Adaptor driver for
>> Win2K that presents two physical (possibly different vendor and/or
>> model) PCI NIC cards as a single logical network card to the OS. The
>> two cards will be on parallel networks and each have the same IP
>> address (as each other). In addition, this logical N/W card needs to
>> keep track of what other IP addresses exist on the network and whether
>> they communicate wiuth "enhanced" TCP/IP. "Enhanced" TCP/IP is a
>> protocal where the TCP/IP packet header is moved to the end of the data
>> packet, and in its place, our own header is prepended to the data
>> packet.
>>
>> These parallel networks are a process control network and are connected
>> to DCU's (distributed control system controllers - glorified,
>> programmable PCL's) which use the parallel networks for redundancy, but
>> also they use the "enhanced" TCP/IP headers for network loading and
>> statistic gathering.
>>
>> Our company currently has a PCI network card (we refer to it as an ECCP
>> card) that has this parallel network capability, but the cards are a
>> large form-factor (13" long card) and have a high power draw - its
>> getting tougher to find computer chassis' that can fit the card as well
>> as power it (with all the other goodies), as well as the fact that they
>> are getting increasingly more expensive to manufacture. So the company
>> wants to retire the ECCP card. I do have the source code for the ECCP
>> card drive, as a place to start.
>>
>> We will only be supporting Win2K & later.
>>
>> I've gotten a pair of books on driver development:
>> "Programming the MS Windows Driver Model" by Walter Oney and "The W2K
>> Device Driver Book" by Baker and Lozano.
>>
>> In one of these books, it specifies that writing a network driver is
>> not for the faint of heart, and will most probably take longer than
>> anticipated!
>>
>> My managers are prodding me for a time schedule, and I don't even know
>> where to begin!
>>
>> I've been poking around the Microsoft website looking for resources...
>> I stumbled across this page:
>> http://www.microsoft.com/whdc/resources/MVP/xtremeMVP_2thingsDB.mspx
>>
>> Written by Don Burn, in which he writes '"How do I get started writing
>> a Windows Device Driver?" The best answer is to take a course.'
>> However, no specific courses are suggested.
>>
>> Additionally, there is no email address for Mr. Burn (I suppose to
>> protect him from getting emails like this one!) with which to ask about
>> suggested courses.
>>
>> Could someone on this list suggest a good starting course for driver
>> development? I have several years of Developer Studio (C++) behind me,
>> but I have never attempted to write a device driver.
>>
>> Regards,
>> Bill
>>
>
>


.

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