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From: | Kирилл Паленов |
Subject: | [Qemu-devel] multiple VM on one tap device |
Date: | Thu, 13 Dec 2007 19:57:18 +0300 |
-bash-3.00# tunctl -b -t tap0
-bash-3.00# ifconfig tap0 192.168.4.1 netmask 255.255.255.0 up
-bash-3.00# ifconfig tap0
tap0 Link encap:Ethernet HWaddr 00:FF:A1:81:05:B0
inet addr:192.168.4.1 Bcast:192.168.4.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Then started VM with following parameters:
1. -net nic,macaddr=00:1a:4b:34:74:43 -net tap,vlan=0,ifname=tap0,host=sv3,script=no
2. -net nic,macaddr=00:1a:4b:34:74:44 -net tap,vlan=0,ifname=tap0,host=sv4,script=no
I did it under linux kernel 2.6.23.9.
What does it mean fd in -net tap,fd ? File discriptor of /dev/net/tun or tap device.
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