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[Xen-users] Please help with the configuration of Debian 8 and Xen and networking with only one network card and multiple external IP addresses.

  • To: xen-users@xxxxxxxxxxxxx
  • From: Christian-Josef Schrattenthaler <cjs1976@xxxxxx>
  • Date: Tue, 23 Feb 2016 22:21:46 +0000
  • Delivery-date: Tue, 23 Feb 2016 22:22:16 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

I have a rootserver with only one network card and 4 official (external IPs). The server runs under Debian 8. I installed the Xen of the distribution. I added the 4 IPs to the network card (like it is described in the official Debian documentation). And if I do a checkup and a test, everything seems to work fine.
The idea now is to create a couple of virtual servers under Xen which uses internal IP addresses (e.g. - All of the servers should be able to connect to the internet (would be cool, if I could decide which server uses which external IP address to appeare on the Internet), but only a couple of them should accept incoming request. Depending on the external IP and the used port I need to forward the request to an internal IP address of on of my virtual servers.
I tried to find the solution myself, but I got stucked. After reading a lot of manuals I don't know what would be the right way. I am completely confused about all of the possible options. I found nowhere a documentation or an Howto for this situation.
Can someone help me or give me a hint in the right direction please?
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