Dear all I have set two directory for QEMU.
One of my qemu-ifup is as follow(the other ip address is different) *#!/bin/sh* *sudo modprobe tun* *sudo /sbin/ifconfig $1 up 192.168.2.52 netmask 255.255.255.0 broadcast 192.168.2.255* * * *# IP masquerade* *sudo echo "1" > /proc/sys/net/ipv4/ip_forward* *sudo /sbin/iptables -N nat* *sudo /sbin/iptables -t nat -F* *sudo /sbin/iptables -t nat -A POSTROUTING -s 192.168.2.62 -j MASQUERADE* *sudo /sbin/iptables -t nat -A POSTROUTING -d 192.168.2.62 -o $1* As the QEMU start, I would key in two instructions *ifconfig eth0 192.168.2.62* *route add default gw 192.168.2.52* In the case of mac address, I have found that two QEMU use the same mac address. However, when I try to assign another mac address to second QEMU. *sudo /home/sn/qemu/qemu-0.12.5/install_gcc/bin/qemu-system-arm -M versatilepb -monitor stdio -kernel vmlinuz-2.6.26-2-versatile -initrd initrd.img-2.6.26-2-versatile -hda test.img -append "root=/dev/sda1" -net nic,macaddr=52:54:00:12:34:57 -net tap,script=./qemu-ifup* The eth0 will disappear like this http://myweb.ncku.edu.tw/~p76991028/eth0.png I can't realize why this would happen. Please tell me where I was wrong. 2010/11/16 Mulyadi Santosa <mulyadi.sant...@gmail.com> > On Tue, Nov 16, 2010 at 17:11, 郭沐錫 <maxgreg13...@gmail.com> wrote: > > Dear all > > I have run QEMU with debian > > I can use TUN/TAP to connect the internet or host when single QEMU > > However when I run two QEMU with two qemu-ifup and different address (on > the > > same host) at the same time, the second QEMU cannot connect to host... > > Is there are any approach to setup guest only network. > > Because I want to run ssh among the QEMUs on the same host. > > Try to paste your complete command together with the parameters you > used in this list. Hopefully then we could analyze it. > > PS: have you assigned different mac address on both guests? > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com >
