Great!! i got your point, I am not using DHCP anywhere except internal VM network. All provide network created without enabling DHCP on them.
Thanks again On Fri, Sep 2, 2016 at 2:30 PM, James Denton <[email protected]> wrote: > You typically enable DHCP on networks where you intend to put VMs. Neutron > routers don’t rely on DHCP to obtain their IP. If you enable DHCP on the > external network, and your intention if only to connect routers to it, those > DHCP server(s) Neutron creates will still each consume an IP address, > reducing the total number of IPs available for use as floating IPs. > > -- > James Denton > Network Architect > Rackspace Private Cloud > [email protected] > > > On 9/2/16, 1:26 PM, "Satish Patel" <[email protected]> wrote: > > Thanks James, > > I didn't understand your following statement. > > "You may want to refrain from enabling DHCP on that subnet as well, > otherwise they will each grab an address as well." > > Could you give me example or explain what does that means? > > On Fri, Sep 2, 2016 at 1:53 PM, James Denton <[email protected]> > wrote: > > Hi Satish, > > > > You can create multiple non-contiguous allocation pools for the > external (floating) network, even as small as a single IP address. Keep in > mind that the Neutron router will take an IP address from this pool for its > ‘qg’ interface. You may want to refrain from enabling DHCP on that subnet as > well, otherwise they will each grab an address as well. > > > > James > > > > On 9/2/16, 10:34 AM, "Satish Patel" <[email protected]> wrote: > > > > Its very weird requirement, stay with me to explain. > > > > We have /24 public IP pool which we are using since long time and we > > cherry picked IP address from that pool so they are not in sequence > :( > > > > Now we have openstack and i want to give some floating IP to > openstack > > but because of non-sequence range how do i give individual IP > address > > to floating pool in VLAN? > > > > In single VLAN 10 net how do i put individual IP in subnet? > > > > _______________________________________________ > > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > Post to : [email protected] > > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > > > > > > > _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
