199.4.212.0/23
You can verify QA Wolf’s ownership of this range through the ARIN WHOIS registry
When this is required
You need this IP range if you restrict access by source IP, for example:- Firewall allow-listing for public or internal services
- Client-based VPNs (such as OpenVPN) that restrict connections by IP
When this is not required
You do not need this IP range for:- Site-to-site IPsec VPNs
- Mesh VPNs (such as Tailscale or Twingate)
- Routing inside a VPN tunnel