WAN‑DR Site Communications The following ports must be accessible/inaccessible between your WAN and DR site: Port Protocol Purpose 22 TCP <DR IP> to <HA IP> 81 TCP <DR IP> to <HA IP> 80 TCP Deny ANY PUBLIC / External / Internet to <DR IP> (HTTP protocol) 443 TCP (https) Allow <DR IP> outbound to Public / External / Internet 443 SMTP & SSH Allow SMTP, SSH protocols to alerts.onqcentral.com & lic.onqcentral.com respectively
