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[libvirt-users] bridge / ubuntu / no arp reply



Hello

I'm trying to setup a bridged guest on an ubuntu 13.10 but it doesn't work.

(Everything is ok with NAT)

Network sniffing shows that arp replies don't come back to the guest.


Test 1
------

Guest : ping host_bridge_ip   (ok)



Test 2
------

Guest: ping other_lan_host (KO)

     other_lan_host

            - receives arp who-is request
            - sends arp reply
            - arp -a   shows the guest macaddr
           

     => Guest doesn't receive reply


Test 3
------

other_lan_host ping the Guest   (KO)

   - arp -a shows "incomplete" addr 
   - Guest receives nothing


On Host
-------

network tcpdump on bridge or vnet interfaces shows request but no reply ...


Thanks in advance for help or ideas


    François






 





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