DOS ain't dead

Windows XP + Virtual Packet Drivers + TCP (Users)

posted by ho1459  , Germany, 20.04.2009, 12:40
(edited by ho1459 on 20.04.2009, 18:12)

Hi everyone,

I have been searching the web for information on this, but
with no luck. I hope someone of you guys can help me...

I have a TCP/IP stack which works well in pure DOS with
packet drivers, no matter what type of packet/protocol
I use.

However, in Windows XP only UDP packets are being
sent. I cannot send (and therefore receive) any TCP packet.

I have verified that no TCP packets are put on the network with
Wireshark and SWSVPKT's pktdump.

In the beginning I only used ndis3nt, but I get the same effect when
using swsvpkt. I have also tried other tools which use TCP, without
any success.

In one forum, I found that this might be a driver conflict with some
other protocol drivers binding to that network / ethernet card, so
I disabled all other protocols and drivers on the target network card
except for the virtual packet driver. But the above problem remains.

Has anyone of you ever experienced this?

Any help appreciated. :)

All the best,
Stefan / AH

EDIT:
A few minutes ago I saw that ndis3nt actually was able to connect
and retrieve a few packets via TCP from a FTP server.
So, removing all protocol bindings from the target ethernet card seems
to work for ndis3nt, but it is pretty unusable since it only
allows to send 75 packets. Btw, these packets were still not shown
via pktdump or Wireshark. Very mysterious...

SWSVPKT is what I need to get working, since it has no such limitations.

Complete thread:

• Windows XP + Virtual Packet Drivers + TCP - ho1459, 20.04.2009, 12:40 (Users)
  • Windows XP + Virtual Packet Drivers + TCP - Laaca, 20.04.2009, 21:05
    • Windows XP + Virtual Packet Drivers + TCP - ho1459, 21.04.2009, 16:06
      • Windows XP + Virtual Packet Drivers + TCP - Rugxulo, 21.04.2009, 20:34
        • Windows XP + Virtual Packet Drivers + TCP - ho1459, 21.04.2009, 20:57
  • Windows XP + Virtual Packet Drivers + TCP - ho1459, 21.04.2009, 15:06
    • Solved! - ho1459, 22.04.2009, 11:59