# HALB

| Source | Destination                           | Protocols                      | Ports                      | Description                                                                                                                |
| ------ | ------------------------------------- | ------------------------------ | -------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| HALB   | HALB                                  | VRRP                           | 112                        | HALB to HALB communication used for automatic assignment of VIP to active HALB.                                            |
|        | RAS Secure Gateway in Forwarding Mode | TCP, UDP                       | 80, 443                    | Management and user session connections.                                                                                   |
|        | RAS Secure Gateway in Normal Mode     | <p>TCP, UDP</p><p>TCP, UDP</p> | <p>80, 443</p><p>20009</p> | <p>Management and user session connections.</p><p>Device Manager shadowing via Firewall (indirect network connection).</p> |