RE: [Xen-users] Windows XP guest: Tap device isn't passing the trafficto linux

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> 
> I have installed Windows XP as HVM guest and I cannot get the network
> working. I want Xen to use vlan 15 (10.3.0.1/24) as the base interface
on
> which bridge will be based on. Problem is, the tap0 device isn't
passing
> the traffic to the bridge.
> Pinging from Windows guest to Dom0:
> nanoha scripts # tcpdump -vvv -i tap0
> tcpdump: WARNING: tap0: no IPv4 address assigned
> tcpdump: listening on tap0, link-type EN10MB (Ethernet), capture size
96
> bytes
> 12:48:58.319374 arp who-has 10.3.0.1 tell 10.3.0.2
> 12:49:03.782449 arp who-has 10.3.0.1 tell 10.3.0.2
> 12:49:09.290650 arp who-has 10.3.0.1 tell 10.3.0.2
> 

Last time I checked, the xen network scripts added a firewall rule for
vifX but not for tapX. Just for testing, try adding an allow rule for
'tap+' (eg all interfaces starting with 'tap'). If you aren't using
iptables in dom0 then disregard this advice :)

James

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