I’m using a RUTM08 router with firmware version RUTM_R_00.07.14.2. The routers hostname is set to “RUTM08”. I can access the router’s web interface from the LAN using that hostname, but it doesn’t work from the WAN side.
The network is behind a double NAT. Other devices on the same network broadcast their hostnames just fine and can be resolved locally. I’ve also enabled remote web access on the router, and I can reach it from the WAN using its public IP address. However, trying to access it using the hostname doesn’t work.
Is there any way to make the router’s hostname resolvable from the WAN? Or is the router simply not broadcasting its hostname beyond the LAN?
Hello,
Firstly, to clarify, typically, inside the LAN, devices use mDNS (Multicast DNS) or a local DNS server to resolve hostnames like RUTM08. However, from the WAN side, there is no automatic hostname resolution, this is expected behavior, especially behind a double NAT.
That said, there are a couple of options to achieve hostname resolution from the WAN:
1. Use Dynamic DNS (DynDNS)
You can configure a Dynamic DNS service on the RUTM08 to map a custom domain name (e.g. yourrouter.dyndns.org) to the router’s public IP. This way, the hostname is always accessible from WAN regardless of IP changes.
Detailed instructions for DDNS configuration can be found on the wiki pages below:
DDNS examples
DDNS - Teltonika Networks Wiki
RUTM08 Dynamic DNS - Teltonika Networks Wiki
DDNS Configuration Examples - Teltonika Networks Wiki
2. Manually Add Host Entry on Client Devices
On the client device accessing the router from WAN, you can manually map the hostname to its public IP.
For Windows
Edit the hosts file:
C:\Windows\System32\drivers\etc\hosts
Add:
<Public_IP> RUTM08 #hostname
For Linux/macOS
Edit /etc/hosts with the same format.
This way, typing https://RUTM08 from those devices will resolve to your router’s public IP.
Best regards,