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vxlan implementation using Linux tap interface

branch: master
README.md

vxlan

ID : https://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-00

vxlan includes "vxland" and "vxlanctl" commands. vxland, is vxlan daemon, forwards packet to VXLAN Overlay Network. vxlanctl is command for controlling vxlan. You can create/destroy vxlan tunnel interface using vxlanctl.

Install

VXLAN requires uthash package late 1.9. Please see http://uthash.sourceforge.net/ .

% git clone git://github.com/upa/vxlan.git
% cd vxlan
% make
% make install

How to Use

vxlan.conf

Multicast Address and Interface are configured in /usr/local/etc/vxlan.conf . vxland can work with IPv4 and IPv6.

# vxlan.conf
multicast_address 239.0.0.1
multicast_interface eth0

vxland

vxland is daemon that creates vxlan instances, and inforward packets.

  • start : /etc/init.d/vxlan start
  • stop : /etc/init.d/vxlan stop

Other configurations are installed by vxlanctl.

vxlanctl

vxlanctl is command tool for configuring vxlan. you can create/destroy vxlan tunnel interface. if you want to use vlan, create vlan interface using vconfig.

### Usage ####
 % vxlanctl --help
    Usage :
      vxlanctl [commands]

    commands:    (VNI is hex)

     create <VNI>                             add vxlan interface
     destroy <VNI>                            delete vxlan interface

### Create vxlan interface  ####
 % vxlanctl create 0
 created
 %
 % ifconfig vxlan0
 vxlan0    Link encap:Ethernet  HWaddr 06:b3:1a:45:86:9a  
           inet6 addr: fe80::4b3:1aff:fe45:869a/64 Scope:Link
           UP BROADCAST RUNNING  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:500 
           RX bytes:0 (0.0 B)  TX bytes:328 (328.0 B)


### using with 802.1q vlan ####
 % vconfig add vxlan0 100
 Added VLAN with VID == 100 to IF -:vxlan0:-
 % ifconfig vxlan0.100 up
 % ifconfig vxlan0.100
 vxlan0.100    Link encap:Ethernet  HWaddr 06:b3:1a:45:86:9a  
               inet6 addr: fe80::4b3:1aff:fe45:869a/64 Scope:Link
               UP BROADCAST RUNNING  MTU:1500  Metric:1
               RX packets:0 errors:0 dropped:0 overruns:0 frame:0
               TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
               collisions:0 txqueuelen:500 
               RX bytes:0 (0.0 B)  TX bytes:468 (468.0 B)

ToDo

  • Per VLAN Forwarding Database (it is Per VNI FDB now)
  • show command of vxlanctl
  • Support *BSD

License

Under BSD LICENSE.

Contact

upa@haeena.net

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