Hi List, after lot''s of trial and error I setup three internal networks for LAN, LAN2 and DMZ. All domU''s can connect to each other. My two ethernet devices are passed to a domU. Well, so far - so good... But: After all this "netwrking" I did the following: created another dummy in dom0 ifconfig dummy4 192.168.3.130 up brctl addif brLAN dummy4 Interface came up but ping from domU to dom0 remaind quiet (no tcpdump output). Then I tried to activate arp ip link set dummy4 arp on and tcpdump -i brLAN told me "arp who-has 192.168.3.130 tell 192.168.3.1" Any idea what small detail I missed? I''m feeling quite close to a solution - but the last step.... btw, there''s actually no firewall software running yet (as I''m installing offline). So any connection should be possible for now. On my dom0 the "ip r" is: 192.168.3.0/24 dev dummy4 proto kernel scope link src 192.168.3.130 iptables -L is completely empty and /proc/sys/net/ip4/ip_forward is "0" Any idea what small detail I''m missing??? cheers, mat _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users