Question

What is the range of Anchor IPs?

Posted July 9, 2020 504 views
Networking

I’ve been using Digital Ocean droplets as WireGuard VPN servers. The VPN service uses an internal set of IP addresses, for which I wanted to use 10.A.B.X (where A and B are randomly chosen for each droplet, and X is a separate ID for each client user).

However, I notice that there’s an “Anchor IP” associated with eth0 on each droplet, even when I don’t use Floating IPs. This is fine, but I want to make sure that my randomly chosen IP scheme doesn’t conflict/overlap with the Anchor IP.

So, if I choose A and B to always be between 30 and 250, will that avoid conflicts, or do some droplets use 10.30.x.x as the anchor IP? What range can I use to ensure I don’t overlap?

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1 answer

Hi there @jasongyorog,

I believe that the Anchor IP that you are referring to is the IP address of your VPC IP range.

If you go to your DigitalOcean Control Panel -> Then go to “Networking” -> After that click on VPC -> there you could see all of your VPC IP ranges.

Hope that this helps!
Regards,
Bobby