Appendix D: Port Numbers
Communications between the FortiDDoS-F appliance, clients, servers, and FortiGuard Distribution Network (FDN) require that any routers and firewalls between them permit specific protocols and port numbers.
The following tables list the default port assignments used by FortiDDoS-F.
Default ports used by FortiDDoS-F for incoming traffic (listening)
| Port Number | Protocol / Service | Purpose |
|---|---|---|
| N/A | ICMP |
ping and traceroute responses. |
| 22 | TCP | SSH administrative CLI access. |
| 23 | TCP | Telnet administrative CLI access. |
| 80 | TCP | HTTP administrative web UI access. |
| 161 | UDP | SNMP queries. |
| 443 | TCP | HTTPS administrative web UI access FortiDDoS REST API Cloud Signaling REST API |
| 6065 | UDP | HA heartbeat. Multicast. |
| 6066 | UDP | HA configuration synchronization. Multicast. |
Default ports used by FortiDDoS-F for outgoing traffic
| Port Number | Protocol / Service | Purpose |
|---|---|---|
| 20, 21 | TCP | FTP client. |
| 25 | TCP | SMTP for alert email. |
|
49 |
TCP |
TACAS+ |
| 53 | UDP | DNS client. |
| 69 | UDP | TFTP client for backups, restoration, and firmware updates. See commands such as execute backup or execute restore. |
| 123 | UDP | NTP client. |
| 162 | UDP | SNMP traps. |
| 389 | TCP | LDAP authentication. |
| 443 | TCP | FortiGuard polling and update downloads. FortiDDoS REST API. Cloud Signaling REST API. |
| 514 | UDP | Syslog. |
| 1812 | TCP | RADIUS authentication. |
| 6055 | UDP | HA heartbeat. Multicast. |
| 6056 | UDP | HA configuration synchronization. Multicast. |