Thanks. root@controller:~# iptables -t nat -L -n Chain PREROUTING (policy ACCEPT) target prot opt source destination quantum-l3-agent-PREROUTING all -- 0.0.0.0/0 0.0.0.0/0
nova-api-PREROUTING all -- 0.0.0.0/0 0.0.0.0/0 Chain INPUT (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination quantum-l3-agent-OUTPUT all -- 0.0.0.0/0 0.0.0.0/0 nova-api-OUTPUT all -- 0.0.0.0/0 0.0.0.0/0 Chain POSTROUTING (policy ACCEPT) target prot opt source destination quantum-l3-agent-POSTROUTING all -- 0.0.0.0/0 0.0.0.0/0 nova-api-POSTROUTING all -- 0.0.0.0/0 0.0.0.0/0 quantum-postrouting-bottom all -- 0.0.0.0/0 0.0.0.0/0 nova-postrouting-bottom all -- 0.0.0.0/0 0.0.0.0/0 Chain nova-api-OUTPUT (1 references) target prot opt source destination Chain nova-api-POSTROUTING (1 references) target prot opt source destination Chain nova-api-PREROUTING (1 references) target prot opt source destination Chain nova-api-float-snat (1 references) target prot opt source destination Chain nova-api-snat (1 references) target prot opt source destination nova-api-float-snat all -- 0.0.0.0/0 0.0.0.0/0 Chain nova-postrouting-bottom (1 references) target prot opt source destination nova-api-snat all -- 0.0.0.0/0 0.0.0.0/0 Chain quantum-l3-agent-OUTPUT (1 references) target prot opt source destination DNAT all -- 0.0.0.0/0 192.168.2.152 to:10.5.5.3 Chain quantum-l3-agent-POSTROUTING (1 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ! ctstate DNAT ACCEPT all -- 10.5.5.0/24 192.168.2.225 Chain quantum-l3-agent-PREROUTING (1 references) target prot opt source destination DNAT tcp -- 0.0.0.0/0 169.254.169.254 tcp dpt:80 to: 192.168.2.225:8775 DNAT all -- 0.0.0.0/0 192.168.2.152 to:10.5.5.3 Chain quantum-l3-agent-float-snat (1 references) target prot opt source destination SNAT all -- 10.5.5.3 0.0.0.0/0 to:192.168.2.152 Chain quantum-l3-agent-snat (1 references) target prot opt source destination quantum-l3-agent-float-snat all -- 0.0.0.0/0 0.0.0.0/0 SNAT all -- 10.5.5.0/24 0.0.0.0/0 to:192.168.2.151 Chain quantum-postrouting-bottom (1 references) target prot opt source destination quantum-l3-agent-snat all -- 0.0.0.0/0 0.0.0.0/0 I can not see anything going through qg-XXXX interface. I have activated net.ipv4.ip_forward in /etc/sysctl.conf. On 25 March 2013 13:03, Sylvain Bauza <sylvain.ba...@digimind.com> wrote: > Le 25/03/2013 12:49, Chathura M. Sarathchandra Magurawalage a écrit : > > >> I have got one question on this. Does quantum directly request leases >> from the gateway of the physical network before reserving them to allocate >> to VMs? >> >> >> > Nope, not at all. It's up to the administrator to make sure the IP ranges > for Openstack are not pooled by any other DHCP server. There is (as per my > knowledge) no way to sync up in between quantum-l3-agent and other DHCP > servers. > > Actually, contrary to fixed ip networks in Quantum, floating IP networks > are not DHCP managed. Eligibility is made upon next IP address available in > Quantum mysql database and directly injected into iptables, that's it. > > -Sylvain >
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