QEMU networking quirkiness on 7.0

[Jim Stapleton]

Sorry for the delayed reply, I didn't see this sent.

On Thursday 10 April 2008 22:01:32 Mario Lobo wrote
> I have a virtual Linux (Fedora 5) and winedows (XP) machines in QEMU and they
> are both network functional. I use qemu-launch because it does everything you
> need to create a virtual machine. Here are my pertinent configs:
>
> ------------------------------------------------
> 1) # rc.conf
>
> ifconfig_re0="up polling"               <- no IP here !
> autobridge_interfaces="bridge0"
> autobridge_bridge0="tap0 re0"     <- important even if tap0 does not exist yet
> cloned_interfaces="bridge0"
> # the bridge gets the IP
> ifconfig_bridge0="inet 10.10.10.2 netmask 255.255.255.0"
>

To verify, the 10.10.10.2 is the IP that everyone sees my host as on
the network, correct? That's the IP that used to be set on re0?

> 2) tell QEMU launch to open a tap device

Open a TUN/TAP interface in the network interface configuration

> 3) tap up script to run when invoking the machine(s).
>
> # qemu-net
>
> #!/usr/local/bin/bash
> $1 = tap ifac created
> /sbin/ifconfig $1 up
> # test if tap is already added
> TEST=`ifconfig -a | grep -A 6 bridge | grep $1`
> if [ "$TEST" == "" ]; then
>    /sbin/ifconfig bridge0 addm $1
> fi
> # add a route to the virtual machine
> /sbin/route add -host 10.10.10.100 -iface bridge0

This is the tun/tap configuration script, the IP on the last line is
the IP I want the guest to look like to the network (i.e.
192.168.1.85)?


Thanks, I'll play with this more when I get home (I don't want to mess
with my machine's network configuration while I've only got network
access).


Thanks,
-Jim Stapleton