On Thursday 26 March 2009 11:30:29 James Simmons wrote:
> Hi!
>
> I hope this is the proper mailing list. If not please tell me
> where do I post my question. I have been attempting to create a setup
> with a host debian (Lenny) system and currently two centos guest. I have
> managed to get everything working except network communications between
> my two guest. I can event login into the proper guest from my host. If
> you need tcpdumps and/or arp results I can provide them. Thank you.
>
> Here is my network configuration script.
>
> ---------------------------------------------------------------------------
>---- #!/bin/sh
>
> count=4
>
> case "$1" in
> start)
> brctl addbr br0
> ifconfig br0 192.168.1.1 netmask 255.255.255.0 up
> for i in `seq 0 $count`
> do
> j=$(($i+100));
> tunctl -b -u uja -t tap$i
> brctl addif br0 tap$i
> ifconfig tap$i up 0.0.0.0 promisc
> #route add -host 192.168.1.$j gw 192.168.1.1 dev
> br0
> done
>
> #route add -net 192.168.1.0 netmask 255.255.255.0 gw
> 192.168.1.1
> dev br0
> iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
> ;;
> stop)
> killall kvm
> iptables --flush
> iptables --table nat --flush
> iptables --delete-chain
> iptables --table nat --delete-chain
>
> route del -net 192.168.1.0 netmask 255.255.255.0 dev br0
> for i in `seq 0 $count`
> do
> ifconfig tap$i down
> brctl delif br0 tap$i
> tunctl -d tap$i
> done
> ifconfig br0 down
> brctl delbr br0
> ;;
> *)
> echo "Usage: $0 start|stop" >&2
> exit 3
> ;;
> esac
> ---------------------------------------------------------------------------
>--
>
> This is the commands I use to start my kvm instants.
>
> macaddr=$(/sbin/ifconfig tap0 | grep HWaddr | awk -F ' ' '{print $5}')
> kvm -name mds -no-acpi -hda $HOME/work/image1.img -net nic,macaddr=$macaddr
> -net tap,ifname=tap0,script=no,downscript=no &
This means you'll have 2 devices on your network with the same mac. The tap
device and the guest.
>
> macaddr=$(/sbin/ifconfig tap1 | grep HWaddr | awk -F ' ' '{print $5}')
> kvm -name oss -no-acpi -hda $HOME/work/image2.img -net nic,macaddr=$macaddr
> -net tap,ifname=tap1,script=no,downscript=no &
>
>
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