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[Xen-users] VLANs in domU?

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Peter Mellon <knascent@xxxxxxxxx>
  • Date: Wed, 24 Jun 2009 16:11:30 -0400
  • Delivery-date: Wed, 24 Jun 2009 13:12:20 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

I'm using Xen 3.1 that comes with the Fedora 7 DVD. It turns out that it only supports 3 network interfaces in domU, so I want to try making VLANs in domU to compensate. Here is my setup:
Computer A (regular Fedora 7 installation, no Xen installed)
---eth0 (physical)
---eth0.400 (VLAN) ---
Computer B dom0 (Xen 3.0 installed)
---eth0 (physical)
---eth0.400 (VLAN)
---br0 (bridges eth0.400 and vif1.0)
Computer B domU
---eth0 (bound to vif1.0)
---eth0.400 (VLAN) ---
So A's eth0 and B's eth0 are connected with an ethernet cable. I am trying to ping (computer A) from (domU). The ping request packets arrive at A (visible on Wireshark and tcpdump), but A is not replying to them for some reason (the IP addresses and routes are set correctly). Does anyone know why, or if this is the correct way to set up VLANs in domU? Thanks
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