Synology Used Ports - SynoCommunity/spksrc GitHub Wiki
Synology has a Knowledge Base entry on which ports are used: What network ports are used by Synology services?
Ports used by Synology Routers [SRM] are documented:
What network ports are used by SRM services?
Additional ports that are only used by SRM are marked in the SRM column.
| Application/Service | SRM | Protocol | Port |
|---|---|---|---|
| FTP | TCP | 20, 21, 55536, 55537 | |
| SSH | TCP | 22 | |
| Telnet | TCP | 23 | |
| SMTP | TCP | 25 | |
| DNS | Both | 53 | |
| DHCP | UDP | 67-68 | |
| TFTP | TCP | 69 | |
| HTTP | TCP | 80 | |
| Kerberos | TCP/UDP | 88 | |
| TCP | 110 | ||
| NFS | TCP | 111, 892, 2049 | |
| NTP | TCP | 123 | |
| High Availability | Both | 123, 874, 5405, 5406, 7400-7999 | |
| CIFS | TCP | 137-139, 445 | |
| IMAP | TCP | 143 | |
| SNMP | TCP | 161 | |
| LDAP | TCP | 389 | |
| HTTPS | TCP | 443 | |
| Kerberos | TCP/UDP | 464 | |
| SMTPS | TCP | 465 | |
| IPSEC | UDP | 500, 4500 | |
| Syslog | TCP/UDP | 514 | |
| LPR Print | TCP | 515 | |
| DHCPv6 | UDP | 546,547 | |
| AFP | TCP | 548 | |
| IPP/CUPS Print | TCP | 631 | |
| LDAP/SSL | TCP | 636 | |
| RSync | TCP | 873 | |
| IMAPS | TCP | 993 | |
| POPS | TCP | 995 | |
| OpenVPN | UDP | 1194 | |
| High Availability (HA) | TCP/UDP | 1234 | |
| Synology Assistant | TCP/UDP | 1234 | |
| IPSEC | TCP | 1701 | |
| PPTP | TCP | 1723 | |
| RADIUS Server | UDP | 1812 | |
| UPnP | UDP | 1900 | |
| Proxy Server | TCP | 3128 | |
| MFP Print | TCP | 3240-3259 | |
| iSCSI | TCP | 3260, 3263, 3265 | |
| LUN Backup | TCP | 3260 | |
| Snapshot Replication | TCP | 3261, 5566 | |
| MySQL | TCP | 3306 | |
| Presto File Server | TCP/UDP | 3360, 3361 | |
| UPS | TCP | 3493 | |
| iTunes | TCP | 3689 | |
| SVN | TCP | 3690 | |
| CIFS Scale-out Cluster | TCP | 4279, 17909, 17913, 19998, 24007, 24008, 24009-24045, 38465-38501, | |
| eMule | TCP | 4662 | |
| eMule | UDP | 4672 | |
| eMule | ✔️ | UDP | 4675 |
| DSM | TCP | 5000-5001 | |
| Video Station | TCP | 5002, 5004, 9025-9040, 65001 | |
| WebDAV, CalDAV | TCP | 5005-5006, 38008, 38443 | |
| Web Filter | ✔️ | TCP | 5010, 5011, 5012 |
| Safe Access | ✔️ | TCP | 5022, 5023, 5032, 5033, 5042, 5043, 5052, 5053 |
| UPnP | ✔️ | TCP/UDP | 49152 (TCP), 5351 (UDP), 19000 (UDP), 55900-55910 (UDP) |
| Bonjour | TCP | 5353 | |
| High Availability (HA) | TCP/UDP | 5405, 5406 | |
| Parent Control | ✔️ | TCP/UDP | 5440 |
| Web Filter (DNS) | ✔️ | TCP/UDP | 5451 |
| Active Backup for Business | TCP | 5510, 5985, 5986 | |
| CardDAV | TCP | 5555 | |
| SMI-S Provider | TCP | 5988, 5989 | |
| AirPlay | UDP | 6001-6010 | |
| AirPlay | TCP | 6011-6030 | |
| Hyper Backup | TCP | 6281 | |
| Drive Server | TCP | 6690 | |
| BiTorrent | UDP | 6881 | |
| File Station | TCP | 7001 | |
| Migration Assistant | TCP/DRBD | 7400-7499 | |
| High Availability (HA) | TCP/UDP | 7400-7499 | |
| C2 Identity Edge-Server | TCP | 7712 | |
| Mesh | ✔️ | TCP/UDP | 7779, 7780, 7781, 7782 (RADIUS Proxy), 9723 (RPC), 7777, 8888 (HYD), 7786, 7787 (LBD) |
| Download Station | ✔️ | TCP | 8000 |
| Download Station | TCP | 8001 | |
| CardDAV Server | TCP | 8008, 8443 | |
| Audio Station | TCP | 8801 | |
| VPN Plus Server (WebVPN) | ✔️ | TCP | 8891, 8591 (when port 443 is used by SSL VPN) |
| TCP | 9002, 3483 | ||
| VPN Plus Server (Remote Desktop) | ✔️ | TCP | 9488 (HTTPS), 9489 (HTTPS) |
| Surveillance Station | TCP | 9900-9901, 19997-19998 | |
| Synology Assistant | TCP/UDP | 9997-9999 | |
| Data Replicator | TCP | 9997-9999 | |
| QuickConnect WOL | ✔️ | UDP | 11022 |
| BiTorrent | TCP | 16881 | |
| Radius | TCP | 18120 | |
| Visual Station | UDP | 19999 | |
| Wi-Fi | ✔️ | TCP | 41087 |
| DLNA | TCP | 50001-50002 | |
| SSDP | UDP | 55900-55910 | |
| ???? | UDP | 4000 |