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ManualsBrandsRed Hat ManualsComputer equipmentENTERPRISE LINUX 5 - VIRTUALIZATION GUIDE
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Chapter 16. Security for virtualization
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• Enabling IP forwarding (net.ipv4.ip_forward = 1) is also required for shared bridges and
the default bridge. Note that installing libvirt enables this variable so it will be enabled when the
virtualization packages are installed unless it was manually disabled.