Dasan Networks (now DZS) is a Korean maker of fiber ONTs and gateways (the H640 and H660 series) supplied by ISPs such as Viettel, Chunghwa Telecom and others.
Dasan Guides
- How to Login to A Dasan Router
- How to Reset A Dasan Router
- Dasan Router Passwords
- Dasan Router IP Addresses
Default Dasan Login Details
Most Dasan routers are at http://192.168.1.1. The most common login is user / user. Other models use user / 1234 or admin / the password on the label. See the Dasan passwords and Dasan IP address pages.
Most Dasan devices are supplied by an Internet provider, so some settings may be locked, and a factory reset can remove the ISP's settings.
More Than Router Guides
To forward ports on a Dasan router, see our sister site: Dasan port forwarding guides on Portforward.com.
Dasan Models We Cover
H640DW Viettel, H660EW, H660GM, H660RM, H660WM