Hi Pablo,
After doing all the setting using your script:

Even with setting the ip address in windows manually,
I cannot get windows guest to get on the internet.
Windows does connect with tap 0 (i.e windows can ping tap0
ip address).
But I don't get any name resolution.
So, I cannot get out on the internet.

My default name resolver on linux is 192.168.1.1
which is my router and works just fine for linux.

Setting windows' two  resolvers to 192.168.0.1 and 192.168.1.1
also does not yield positive name resolution.

Here is the output of some relevant commands on linux
#ifconfig
br0 Link encap:Ethernet HWaddr 00:03:0D:15:2B:9E inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
         inet6 addr: fe80::203:dff:fe15:2b9e/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:14188 errors:0 dropped:0 overruns:0 frame:0
         TX packets:7496 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:18270317 (17.4 MiB)  TX bytes:541571 (528.8 KiB)

eth0 Link encap:Ethernet HWaddr 00:03:0D:15:2B:9E inet6 addr: fe80::203:dff:fe15:2b9e/64 Scope:Link
         UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
         RX packets:15101 errors:0 dropped:0 overruns:0 frame:0
         TX packets:9251 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:18824196 (17.9 MiB)  TX bytes:857305 (837.2 KiB)
         Interrupt:19 Base address:0xd800

lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:14612 errors:0 dropped:0 overruns:0 frame:0
         TX packets:14612 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:115903559 (110.5 MiB)  TX bytes:115903559 (110.5 MiB)

tap0 Link encap:Ethernet HWaddr 00:FF:32:0D:59:99 inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
         inet6 addr: fe80::2ff:32ff:fe0d:5999/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:422 errors:0 dropped:0 overruns:0 frame:0
         TX packets:315 errors:0 dropped:35 overruns:0 carrier:0
         collisions:0 txqueuelen:500
         RX bytes:43556 (42.5 KiB)  TX bytes:39174 (38.2 KiB)


# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 br0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 tap0
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 br0

# brctl show
bridge name     bridge id               STP enabled     interfaces
br0             8000.00030d152b9e       no              eth0
virbr0          8000.000000000000       yes

# cat /etc/resolv.conf
; generated by /sbin/dhclient-script
search localhost.localdomain
nameserver 127.0.0.1
nameserver 192.168.1.1

# cat /proc/sys/net/ipv4/ip_forward
1
# cat /proc/sys/net/ipv4/conf/br0/proxy_arp
1


Cheers,

JD


Pablo Sanchez wrote:
On Friday 07 March 2008 at 2:40 pm, JD penned
about "Re: [vbox-users] multiple real interfaces and bridging"

Thank you Pablo,

You're welcome.

I guess I can skip iptables thing, because my firewall
is disabled. Is this Right?

Correct.

Also, do I have to enable IP forwarding by

echo 1 > /proc/sys/net/ipv4/ip_forward  ??

Yes you do ... well, I did it ... try it with and if it works, then
try without.  :)  I can't recall why I popped that in there.

Cheers,
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