I have two remote hosts, they are both behind a NAT so have a public and a private address. I made sure, to have life easier, the subnets are the same (I assigned static local ips to prevent problems). So, we have host1 public ip: ##### private ip: 192.168.1.2
host2 public ip: yyyyy private ip: 192.168.1.3 now, I added eth0 to both bridges (so internal interfaces br0 have to local ips specified above) and estabilished a couple gre tunnels host1: ovs-vsctl add-port br0 eth0 ovs-vsctl add-port br0 gre0 -- set interface gre0 type=gre options:remote_ip=yyyy host2: ovs-vsctl add-port br0 eth0 ovs-vsctl add-port br0 gre0 -- set interface gre0 type=gre options:remote_ip=xxxx anyway if, from host1, I try to ping host2 ping 192.168.1.3 ping fails. So I take that some ports have to be opened on the NATs or some more options have to be specified in order to make the process work...am I right? Regards, Pasquale
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