NDIS IM NAT

NTDEV
1

Hi, all

I developed the NAT use NDIS IM on XP. There are two NIC, one a usb wireless
NIC used to AP, another one use to WAN.

I use the passthru in WDK sample, but we only recevice packet from Wan in PtReceive and PtReceivePacket . if we use usb wireless NIC to Connect other AP is OK. We can get packet from or to it.

Thanks

2

You need to review the WDK documentation for Network Drivers for the Vista
and later platforms.

In particular, at Windows Vista Microsoft completely revised the kernel-mode
networking architecture. One aspect of this revision is that MS introduced a
new “Native 802.11 Wireless LAN” API to support Wi-Fi. New NDIS 6 Wi-Fi
adapters for Vista and later support the new Native 802.11 API.

Microsoft provided some down-level support for NDIS 5 and XP-style Wi-Fi
adapters. So, for some older Wi-Fi adapters your NDIS 5 IM driver may see
packets from them.

You need to abandon your NDIS 5 IM driver and move to the new NDIS 6
technologies.

Good luck,

Thomas F. Divine

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of 13027659972@163.com
Sent: Tuesday, September 16, 2014 1:59 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] NDIS IM NAT

Hi, all

I developed the NAT use NDIS IM on XP. There are two NIC, one a usb
wireless NIC used to AP, another one use to WAN.

I use the passthru in WDK sample, but we only recevice packet from Wan in
PtReceive and PtReceivePacket . if we use usb wireless NIC to Connect other
AP is OK. We can get packet from or to it.

Thanks

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