RE: [Xen-devel] Bridged Networking in Dom 0 and Virtual NIC in Windows XP Home 32-bit HVM Guest

[Caz Yokoyama <cazyokoyama@xxxxxxxxx>]

Hello Teo,
What type of network device do you have? Virtual network or shared physical
device? If you have virtual network, I suspect your domU and dom0 are in
their own sub-network and the domU is not visible to anyone other than dom0.
If you have shared physical device, root cause is something else.
-caz

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Mr. Teo En Ming
(Zhang Enming)
Sent: Sunday, August 23, 2009 9:09 AM
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Bridged Networking in Dom 0 and Virtual NIC in Windows
XP Home 32-bit HVM Guest

Hi,

My Intel DQ45CB motherboard BIOS has VT-d enabled. I am using Xen 3.4.1 
and Jeremy Fitzhardinge's paravirt ops dom 0 kernels 2.6.30-rc3 and 
2.6.31-rc6.

When Xen boots up, it says that I/O virtualisation is enabled (VT-d 
working).

I have Windows XP Home 32-bit installed as a HVM guest. I am not trying 
direct access to physical NIC yet.

I am still using virtual NIC in Win XP Home.

When I configured IP address in Win XP HVM guest, I can ping the IP in 
Dom 0. In Dom 0, I can also ping the IP of my Win XP domU.

However, other network devices/computers in the same LAN cannot see the 
IP of Win XP domU. Only Dom 0 can see. Similary, Win XP dom U can only 
talk to Dom 0 and cannot talk to other computers in the network.

Why is this so?

-- 
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering)
BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx
Alma Maters: Singapore Polytechnic, National University of Singapore



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