Ports for Incoming Communication Open in LEAF OS
Overview
This article lists the ports open in LEAF OS for incoming communication and describes the associated applications and protocols.
Open Ports – Incoming Communication
| Protocol | Port | Application |
| TCP | 22 | Secure Shell |
| TCP | 5900 | VNC screen shadowing |
| TCP | 6566 | SANE scanner server |
| UDP | 68 | DHCP client |
| UDP | 1027 | vSpace Console management |
| UDP | 1701 | L2TP/IPsec VPN client |
| UDP | 5353 | mDNS
|
Notes & Conditions
- SSH (TCP 22), VNC (TCP 5900), and vSpace Console Management (UDP 1027) are dependent on device configuration and may not be active on all devices.
- When VPN clients are in use, additional UDP ports may open dynamically. Common examples include:
- UDP 500 – IKEv2/IPsec key exchange
- UDP 4500 – IKEv2/IPsec NAT traversal
Article #KB875
Last Edited: 07/2026
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