[SOLVED] Xcp-ng/XO assign static ip to interface

Networking & Firewalls
1

I would like to assign a static ip to one of my xcpng hosts in XO so that I can connect directly to my truenas box. Both the xcp and truenas have mellanox 40gbe connectx-3 cards installed. I don’t have a 40gbe switch so I wanted to just do peer to peer. I can easily assign a static ip in truenas but I don’t seem to be able to easily do it in XO. I did look at networking documentation on XO website but the only mention of setting an ip was in the mesh network for 3 high availability hosts. Thank you for your help in advance!

2

I am not clear on your ask, you have a TrueNAS VM inside of XCP-NG that you want to set to static? If so they you would set that inside the VM.

3

I have a physical box with truenas with a 40gig mellanox card where I set up a static IP. And I have a separate physical box with xcpng with another 40gig card but I can’t set an ip for xcpng in xo. I’d like to do that to make a direct connection between the two because I don’t have a switch. I don’t see a way to set a static ip to the 40gig interface in xcpng/xo. Thanks!

4

In XO go to the host and choose the network tab then change the mode on the interface from None to Static and then site the IP.

5

Thank you Tom! That was too easy! Pretty embarrassing…

1 Like
6

@LTS_Tom, In order to use TrueNAS as an NFS remote for XCP-NG in this situation, to use it for automated backups, was there any other configuration? I have the static IP assigned in the host for that interface, and I have the interface added to the XOA VM, but when I try to configure the NFS remote I get a network unreachable error.

I can ping each host fine, but it seems NFS doesnt have the route. Are these backups done through the XOA VM or via the XCP-ng host itself ? If its the XOA host, perhaps I need to make sure it also has a static IP on that subnet as well as the host and the truenas server? I don’t remember seeing you do any of this extra config though. Thoughts are appreciated!

7

For anyone else dealing with this, I ended up needing to go into the XOA VM and manually assigning a static IP to the interface which was direct connected to the TrueNAS server (so both the XCP-NG host and the VM have a static IP on that subnet). I guess since DHCP is not running, XCP-NG did not understand how to raise that connection on the host. Maybe I missed this in the documentation somewhere.