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Re: [Xen-devel] Bridged Networking in Dom 0 and Virtual NIC in Windows X

To: enming.teo@xxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Bridged Networking in Dom 0 and Virtual NIC in Windows XP Home 32-bit HVM Guest
From: "Mr. Teo En Ming (Zhang Enming)" <enming.teo@xxxxxxxxxxxxxxx>
Date: Mon, 24 Aug 2009 08:10:42 +0800
Cc: cazyokoyama@xxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx
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References: <4A91697E.4080504@xxxxxxxxxxxxxxx> <7D6FDE16725D4797962C2DDCB414234B@xpjpn> <4A9172B6.4080906@xxxxxxxxxxxxxxx> <5F96C422BD754FCA85AE381766AF12F5@xpjpn> <4A9174BB.8040604@xxxxxxxxxxxxxxx> <90BEA6D1FC8B4356BB0116E3BA3CEA57@xpjpn> <4A91D85E.7090806@xxxxxxxxxxxxxxx>
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Hi Caz,

I did a tcpdump on my ethernet bridge eth0.

When the firewall on Dom 0 is up, I see DHCP request packets but NO DHCP reply packets.

When I flushed all the firewall rules on Dom 0, I see both DHCP request and reply packets going to my Win XP Home Dom U.

--
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



On 08/24/2009 08:01 AM, Mr. Teo En Ming (Zhang Enming) wrote:
Hi Caz,

I found out why my Win XP Home HVM dom U couldn't access the outside world. It's because of the firewall rules on my Dom 0. When I flushed all my firewall rules, Dom U could obtain IP address from my wireless router and surf the internet.

So I have to think of adding appropriate firewall rules so that my Dom U could access the outside world when the firewall is enabled.





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