Modify TCP Ports for HA‑DR Communications
You might need to modify the TCP port numbers used for communications between the local and remote onQ Appliances if inter-Appliance communications traverse a firewall that does network address translation (NAT) on the onQ Manager IP addresses.
• Port 22 (ssh) — the default port for securely transmitting data. It’s highly unlikely that you’d ever need to change this port.
• Port 81 — the default port that each onQ Appliance uses to verify that the other is “alive”; no data is transmitted via this port.
To modify the TCP port numbers:
2. Go to APPLIANCE CONFIG tab > onQ (REMOTE) page.
3. Click MODIFY.
The Modify Remote onQ Setup page appears.
4. In the Remote Firewall Port Mapping section, make your changes, then SAVE.