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Re: [Qemu-devel] TUN network

From: Joe Menola
Subject: Re: [Qemu-devel] TUN network
Date: Wed, 28 Jul 2004 20:58:51 -0500
User-agent: KMail/1.6.2

On Thu July 29 2004 10:10 am, Darrin Ritter wrote:
> HI
> I have tried all diferent types of configs arround the IP adresses with
> the host at and the win98 guest at or
> set staticly I cant seem to ping the host at
> or the freesco router at
> any ideas?
Let's try things manually?

Check if  iptables is setup as in
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
(I used webmin to check firewall settings not sure how else to do it)

If host tun0 is, Win98 should be configured staticly to 
192.168.1.<anything but 10>
Set win98 gateway and dns server to

Shutdown Windows, in terminal as root do

/etc/rc.d/init.d/iptables stop
echo "1" >&/proc/sys/net/ipv4/ip_forward
/etc/rc.d/init.d/iptables start

verify that the contents of /proc/sys/net/ipv4/ip_forward is "1"
if content is "0" then ip_forward is not being set, and tun will fail.

start qemu with -n <path to ifup script> (make sure -user-net is not included 
in start command)

If this works then the problem lies in your ifip script(s). If not, I'm lost.


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