Is the manufacture software the same with the Avaya software? I hope not. So it can be expected that WinPcap doesn't have the compatible issue with Avaya software.Īnd I'm a little confused. A NDIS 5 software doesn't quite conflict with a NDIS 6 software. WinPcap and Npcap are based on different models. Npcap Loopback Adapter will see that traffic too, not just the .x IP. In fact, you can forward the packets to any local IP (like an IP of the Ethernet adapter). One thing need to clarify, the static IP of Npcap Loopback Adapter (something like .x) is not used by Npcap. (Actually to the static IP I assign to that interface). I use the manufacturers software to forward their packets to the loopback interface created by Npcap. As far as I can tell this works fine out of the box, with the Avaya software, but my timestamps are all junk. Then I need to make Wireshark listen on that pipe. So if I use WinPCap, I need to use a pipe from the manufacturers software and not a socket. Then I have Wireshark listen on that interface and I get the packets into Wireshark with the correct timestamps since they came in on a socket. So what I want to use Npcap for is for loopback. A socket is best because then I get correct timestamps, which allows me to correlate packet times with event logs from the devices themselves. We have software from the manufacturer of this device that will forward the packets from the network onto a pipe, file, or socket in Windows. The use case we are trying to solve with Npcap is this: we have a device that implements a special wireless networking interface that Windows doesn't recognize as a network interface. So I suggest you test these two versions to see if they can do your step 4. This commit is between Npcap 0.06 r7 and Npcap 0.06 r8. It's weird, I can do your step 4 in Npcap 0.07.Īnd there is a commit ( f64b3f4) that may influence this behavior possibly. (if you know how to stop a driver uisng the 'net stop XXX' command, you can do this step without uninstalling). So please uninstall them, reboot, then try Npcap again. Have you installed any anti-virus, firewall, VPN softwares? They can mess with Npcap. So I believe it's some kind of compatible issue on your side. And no other people report this issue to me for now. Unfortunately, it doesn't happen to my machines, a physical host and several VMware VMs. Has anybody else not seen this issue? Has anyone else seen this issue? It has happened on every machine I've tried. If this is a bug introduced in a specific version, I want to know which version Npcap actually introduced it. I can reproduce the issue with both npcap-nmap-0.07 and npcap-nmap-0.06-r4.Ĭould you please try other installers? like Npcap 0.05, if 0.05 is bad, then 0.04, 0.03.

So only the last installation option is remaining. You can also check OFF the Support loopback traffic ('Npcap Loopback Adapter' will be created) option if you like. You said it doesn't matter which install time options I select, but I still need to warn that **Don't check on the Support raw 802.11 traffic (and monitor mode) for wireless adapters option. Hi several different Windows 7 laptops, once I install Npcap, my Wi-Fi access fails, Windows displays that the Wi-Fi network has 'limited connectivity.' I can produce logs if necessary, but I don't know what your looking for.

I came up with a very weird workaround to restore Wi-Fi access without uninstalling Npcap, but it requires you to use npcap-nmap-0.06-r4. That is my workaround, but it doesn't work with the latest release. For an example of what I mean, see the link below. The correct behavior I also expect is that I'm able to disable the Npcap driver on a specific wireless interface. Has anybody else not seen this issue? Has anyone else seen this issue? The correct behavior I expect is that the Wi-Fi access does not fail with the 'limited connectivity' message. Installing Npcap is the only step necessary to reproduce.

As far as I can tell, it doesn't matter which install time options I select, it happens regardless. I can reproduce the issue with both npcap-nmap-0.07 and npcap-nmap-0.06-r4. On several different Windows 7 laptops, once I install Npcap, my Wi-Fi access fails, Windows displays that the Wi-Fi network has 'limited connectivity.'

Do i need npcap loopback adapter