On 06/21/2010 09:51 AM, Kangkook Jee wrote:
Does KVM hook into NetFilter to intercept packets destined for the guest, or 
PF_PACKET?

None of the above.

With -net user, KVM uses techniques derived from SLiRP to simulate a network stack with only traditional userspace UNIX socket calls. With -net tap, it uses the standard ethertap interface. -net socket and -net dump likewise do nothing unconventional.

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