[ovs-discuss] DHCP IP addresses range of OVN's internal DHCP server
Numan Siddique
nusiddiq at redhat.com
Thu Jan 11 13:01:25 UTC 2018
On Thu, Jan 11, 2018 at 5:31 PM, Dominik Holler <dholler at redhat.com> wrote:
> Hello,
> what is the range of offered IP addresses by OVN's internal DHCP server?
>
Hi Dominik,
Internal DHCP offers the IP address set in the logical_switch_port's
addresses column. So, the CMS (cloud management system) is expected to set
it.
> I am also interested in locating the source code which calculates this
> range.
>
Alternatively, OVN supports basic IPAM implementation which actually
assign's IP address to the logical switch ports from the configured range.
All the documentation is available in "man ovn-nb" (grep for "IP Address
Assignment" and "DHCP") and "man ovn-northd".
For IPAM you can find the code here -
https://github.com/openvswitch/ovs/blob/master/ovn/northd/ovn-northd.c#L1114
For DHCP here -
https://github.com/openvswitch/ovs/blob/master/ovn/northd/ovn-northd.c#L2662
Thanks
Numan
Thanks and regards
> Dominik
>
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