VDETAPLIB(1) General Commands Manual VDETAPLIB(1) NAME vdetaplib - Virtual Distributed Ethernet tap emulation library SYNOPSIS No synopsis DESCRIPTION vdetaplib is a library that emulates tap (tuntap level2 interface, see in kernel sources ./Documentation/networking/tun.c) and connects tap virtual interfaces to vde networks. To use it, the libvdetab.so library must be preloaded (sh,ksh or bash syn- tax): export LD_PRELOAD=/usr/local/lib/libvdetap.so (csh, tchs syntax): setenv LD_PRELOAD /usr/local/lib/libvdetap.so If you want to divert all tap requests to a single vde_switch set the vari- able VDEALLTAP to the vde socket. (sh,ksh or bash syntax): export VDEALLTAP=/tmp/vde.ctl (csh, tchs syntax): setenv VDEALLTAP /tmp/vde.ctl It is also possible to set each single interface to different vde_switches by setting the environment variable with the same name of the interface. (sh,ksh or bash syntax): export tap0=/tmp/vde.ctl export tap1=/tmp/myvde.ctl export ppc=/tmp/ppc.ctl (csh, tchs syntax): setenv tap0 /tmp/vde.ctl setenv tap1 /tmp/myvde.ctl setenv ppc /tmp/ppc.ctl The variable to set the specific interface is checked first then VDEALLTAP. VDEALLTAP thus works as a default choice for the vde switch to be used. If VDEALLTAP is not set and there is no specific environment variable (and for tun -- IFF_TUN interfaces) the kernel provided interface is used. In this latter case access to /dev/net/tun is required, generally root access. SEE ALSO vde_switch(1), vdeq(1). AUTHOR VDE is a project by Renzo Davoli <renzo@cs.unibo.it> Virtual Distributed Ethernet February 23, 2004 VDETAPLIB(1)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR
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