Linux Kernel With Tun Tap Support

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networking - check support of Universal TUN/TAP Device on ...

    https://askubuntu.com/questions/219304/check-support-of-universal-tun-tap-device-on-ubuntu-12-04
    I am trying to setup Appgate Ip tunneling driver on my ubuntu 12.04 by following appgate instructions listed below: Installation, Linux. Make sure the kernel has support for the Universal TUN/TAP device driver, and then log in as root and create a new directory somewhere, and copy the files

Configuring and using a tuntap network interface

    http://bochs.sourceforge.net/doc/docbook/user/config-tuntap.html
    8.11.1. Tuntap description. From the tuntap.txt file in the Linux kernel tree : TUN/TAP provides packet reception and transmission for user space programs. It can be viewed as a simple Point-to-Point or Ethernet device, which instead of receiving packets from a physical media, receives them from user space program and instead of sending packets via physical media writes them to the user space ...

TUN/TAP - Wikipedia

    https://en.wikipedia.org/wiki/TUN/TAP
    In computer networking, TUN and TAP are virtual network kernel interfaces. Being network devices supported entirely in software, they differ from ordinary network devices which are backed up by hardware network adapters. The Universal TUN/TAP Driver originated in 2000 as a merger of the corresponding drivers in Solaris, Linux and BSD.

linux/tuntap.txt at master · torvalds/linux · GitHub

    https://github.com/torvalds/linux/blob/master/Documentation/networking/tuntap.txt
    Aug 09, 2019 · Contribute to torvalds/linux development by creating an account on GitHub. ... TUN/TAP provides packet reception and transmission for user space programs. ... Does TAP driver support kernel Ethernet bridging? Yes. Linux and FreeBSD drivers support Ethernet bridging.

Enabling Linux kernel TUN/TAP support - Beginning OpenVPN ...

    https://subscription.packtpub.com/book/networking_and_servers/9781847197061/6/ch06lvl1sec42/enabling-linux-kernel-tun-tap-support
    If your kernel does not support TUN/TAP devices, you have to enable it in the kernel configuration. All modern Linux/UNIX distributions support TUN/TAP devices, so it is very unlikely for you to run into this problem. Probably, this will only usually happen if you have built your own kernel.

Universal TUN/TAP driver - FAQ

    http://vtun.sourceforge.net/tun/faq.html
    1.6 What is the difference between TUN driver and TAP driver? 1.7 What is the difference between BPF and TUN/TAP driver? 1.8 Does TAP driver support kernel Ethernet bridging? 1. General questions. 1.1 What is the TUN ? The TUN is Virtual Point-to-Point network device. TUN driver was designed as low level kernel support for IP tunneling. It ...

Linux-Kernel Archive: Re: [PATCH] tuntap: add flow control ...

    http://lkml.iu.edu/hypermail/linux/kernel/1404.1/03827.html
    With the current Linux non-patched (no flow control) tap device, I actually get a pathological situation where, when there's a slot open in the tap device queue, the first arriving "low priority" packet of the pair gets it and the second arriving "high priority" packet always gets dropped.

Configuring my kernal for TUN/TAP device driver support

    http://www.redhat.com/archives/redhat-list/2004-March/msg00383.html
    In order to run the SCPS gateway under the Linux operation system via the TAP method, the following kernel configuration options must be enabled before configuring the SCPS software. UNDER NETWORKING OPTIONS. 802.1d Ethernet Bridging. UNDER NETWORKING DEVICE. Universal TUN/TAP device driver support

Enabling Linux kernel TUN/TAP support - Beginning OpenVPN ...

    https://www.oreilly.com/library/view/beginning-openvpn-209/9781847197061/ch06s05.html
    Enabling Linux kernel TUN/TAP support If your kernel does not support TUN/TAP devices, you have to enable it in the kernel configuration. All modern Linux/UNIX distributions support TUN/TAP devices, so … - Selection from Beginning OpenVPN 2.0.9 [Book]

Linux Kernel Documentation :: networking : tuntap.txt

    https://www.mjmwired.net/kernel/Documentation/networking/tuntap.txt
    The application on the other side decompresses 211 and decrypts the data received and writes the packet to the TAP device, 212 the kernel handles the packet like it came from real physical device. 213 214 4. What is the difference between TUN driver and TAP driver? 215 TUN works with IP frames. TAP works with Ethernet frames.



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