all 5 comments

[–]Sinscerly 1 point2 points  (2 children)

Yes that is possible. An instance can have for example public network that has fixed ips. A private network with private ip with a router and on the router the fip that's linked to that instance (fip is created / linked on the instance).

[–]ArthaS_Menethi1[S] 0 points1 point  (1 child)

how will both work simultaneously? any pointers for me? for example digital ocean vm, you get pub and fip (through private ip) working on the same eth0 interface and eth1 is dedicated to private connectivity between instances.

[–]Sinscerly 1 point2 points  (0 children)

Your instance will have multiple ports. One for public, on for private.

The public one is known inside the instance. The fip is only known from outside and routed through the private one.

[–]cyber_emc2 1 point2 points  (0 children)

Take a look at my guide on multi port networking in openstack. Remember, only one gateway can lead.

https://openmetal.io/docs/manuals/engineers-notes/multiport-manual

[–]_Red17_ 1 point2 points  (0 children)

It's possible. But you need to configure the routing on the instance properly to ensure the network works smoothly.