Synology DS418 User Manual

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Synology NAS User's Guide

Based on DSM 6.1

39 Chapter 7: Access your Synology NAS from the Internet

Set Up Port Forwarding Rules for Router

If your Synology NAS is within the local network, you can set up port forwarding rules for the router to allow your

Synology NAS to be accessible over the Internet.

Note: Before you start, make sure you have manually assigned a static IP address for your Synology NAS. See

"Network Interface" for more information.

Go to Control Panel > External Access > Router Configuration to set up your router and port forwarding rules.

For more detailed instructions, please see DSM Help.

Note: To configure port forwarding rules and assign static IP address, you must have the administrative permission

to the router.

Set up Router

Before adding port forwarding rules with DSM, you need to set up Synology NAS device’s connection to the

router. To begin, please click the Set up router button.

Add Port Forwarding Rules

Add port forwarding rules to specify the destination ports of your Synology NAS that will receive packages from

specific router ports. Click Create to start creating port forwarding rules.

DDNS (Dynamic Domain Name Service) simplifies connecting to your Synology NAS over the Internet by

mapping a hostname to its IP address. For example, DDNS allows you to access your Synology NAS using a

domain name (e.g. www.john.synology.me), with no need to remember an IP address (e.g. 172.16.254.1).

Service Requirement

 The servers of the DDNS service provider are working normally.

 The Synology NAS is able to connect to the Internet.

 DDNS will only run in a network environment where there is no proxy server required.

 You can only enter one hostname for each DDNS provider.

Go to Control Panel > External Access > DDNS. You can point an existing hostname at the IP address of your

Synology NAS, or register for a new one provided by Synology or several other DDNS providers. Please consult

each provider for more details regarding hostname registration.

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Synology DS418