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xen-users
Re: [Xen-users] Packet modification on Xen virutal Bridge
Thank you for prompt response.
So, what i actually try to do is to append data to payloads of packets whcih
are sent by domain U, and then restransmit the packets to the destinations.
After I posted the first message of this thread, I found that libipq API
provided by Netfilter might suit my purpose.
Thaddeus Hogan wrote:
>
> I'm not sure how you would generically intercept and modify packets short
> of writing a module for netfilter. But if you are looking specifically to
> encrypt in tunnel packets to another location I would recommend OpenVPN.
>
> Xen bridges are just Linux bridge interfaces, and so can be used to bridge
> any networking devices. For example you could run OpenVPN and create a
> tap0 device for the VPN, then add that device to xenbr0. Now when you
> connect an OpenVPN client to that host, all traffic on the xenbr0 bridge
> will be mirrored to tap0, which will then be present on tap0 on the other
> side of the VPN link.
>
> I would suggest thought that you try to accomplish your task at layer-3
> since IMHO routing is simpler in implementation than bridging over a VPN.
>
> Can you provide more details on what it is you're trying to do?
>
>
> ----- Original Message -----
> From: "nikki-2009" <n.kawaguti@xxxxxxxxx>
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Sent: Saturday, June 27, 2009 10:28:12 AM GMT -06:00 US/Canada Central
> Subject: [Xen-users] Packet modification on Xen virutal Bridge
>
>
> Hi guys,
>
> Now, I'm looking for a method to modify packet headers/contents when they
> arrive at xen bridges (e.g. xenbr0). For example, I consider a following
> operation; when a xen bridge recieves a packet(frame), it firstly encrypts
> the content using a predefined key, and then forwards it to other
> host/router.
>
> Is is possible to add such functionality to the xen bridge ?
> Any ideas, comments or suggestions are welcome.
>
> Thanks in advance.
>
> --
> View this message in context:
> http://www.nabble.com/Packet-modification-on-Xen-virutal-Bridge-tp24234052p24234052.html
>
> Sent from the Xen - User mailing list archive at Nabble.com.
>
>
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>
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>
--
View this message in context:
http://www.nabble.com/Packet-modification-on-Xen-virutal-Bridge-tp24234052p24241186.html
Sent from the Xen - User mailing list archive at Nabble.com.
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