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1answer
32 views

macvtap on vmware's VM

Does macvtap bridging between VMWARE's VMs? My application works over VMWARE VM and should handle traffic from the net. I'm trying to use macvtap for that purpose: ip link set dev eth1_index promisc ...
0
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1answer
107 views

trouble bridging tap0 and tap1

I have a GNS3 router that is connected to tap1 in my host. On the other hand, I have an user application connected to tap0 running locally in my host. I can ping both the router and my application. ...
4
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0answers
304 views

difference tun/tap, is the interfaces that handle protocols or the OS?

I have difficulties to understand difference between tap and tun interface. I know it is an often asked question and I apologize for that. I asked the same questions on stackoverflow and someone told ...
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1answer
593 views

Bridged TAP interface to virtualbox

I need bridged TAP interface on client side of my VPN to virtual machine. I use VirtualBox 4.3.12. But in Adapter Network options in Attached to: Bridged adapter I do not see my TUN adapter. I have ...
4
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1answer
742 views

how to intercept IP packets on linux

I am trying to achieve this goal on Linux (not sure if it is possible and how if so): I need to write a program to intercept all IP packets on an interface, and deliver this packet to a specific set ...
2
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1answer
705 views

Synaptics Touchpad Tap Lag (FastTaps Option Gone)

I own an Asus Zenbook Prime UX31A with a clickpad. Under the Synaptics driver, I'm trying to use tap-to-click. With the default settings, there is a very noticeable lag between when I tap and the tap ...
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2answers
3k views

How to know if a network interface is tap, tun, bridge or physical?

As far as i know, there are 4 main types of network interfaces in linux: tun, tap, bridge and physical. When i'm doing sys admin on machines running KVM, i usually come accross tap, bridge and ...
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3answers
3k views

How to know if a process is attached to a tap interface?

I sometimes come upon machine with tap interfaces (eg, when KVM is running). How can I know which process is attached to the TAP interface?
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1answer
1k views

How can I force a tap/tun interface into the running state?

I am trying to capture packets on a tun interface with libpcap. I am creating the interface with: openvpn --mktun --dev tun0 When the adapter is setup it appears as so when I run ifconfig: tun0 ...
3
votes
1answer
488 views

What is the kernel doing when I bring a TUN/TAP interface up

I'm playing around with the TUN/TAP device on Linux. I've created a simple program that creates a TAP interface and prints anything that is sent through it. When I bring the interface up with ip link ...
7
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1answer
8k views

Why are incoming packets on a TAP interface seen with tcpdump but not with iptables?

A program injects packets on a Linux TAP interface (these packets are coming from a virtual machine). Specifically, these are DHCP requests (so they're UDP). I can see the packets with tcpdump but not ...