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Old 08-30-2012, 01:08 PM
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Default Asuswrt-Merlin - custom firmware for Asus routers

This is a customized version of Asuswrt, the firmware developed and used by Asus on many of their routers.

Official support:

Note: the "W" and "R" variants are also supported (for example, RT-N66R, RT-AC68W).

The primary goals of this project are to fix bugs, add a few basic features and tweaks to the original firmware. This firmware will try to remain as close as possible to the original firmware. If you are looking for a slew of advanced features, then this project is not for you. Look at TomatoUSB or DD-WRT, two excellent products that might suit your needs better.

If however you prefer something as close as possible to the manufacturer's firmware, then this is for you

Latest stable release: 376.47
Latest beta release: 376.48 Beta 2


Asuswrt-merlin provides the following changes over the original firmware:

  • Various bugfixes and optimizations
  • Some components were updated to newer versions, for improved stability and security
  • Persistent JFFS partition
  • User scripts that run on specific events
  • Cron jobs
  • Ability to customize the config files used by the router services
  • LED control - put your Dark Knight in Stealth Mode by turning off all LEDs
  • Entware easy setup script (alternative to Optware - the two are mutually exclusive)
  • SNMP support (experimental Asus feature)

Disk sharing:
  • Optionally use shorter share names (folder name only)
  • Disk spindown after user-configurable inactivity timeout
  • NFS sharing (through webui)
  • Better compatibility with 3TB+ and Advanced Format HDDs

  • Force acting as a Master Browser
  • Act as a WINS server
  • SSHD
  • Allows tweaking TCP/UDP connection tracking timeouts
  • CIFS client support (for mounting remote SMB share on the router)
  • Layer7 iptables matching (N16/N66/AC66 only)
  • User-defined options for WAN DHCP queries (required by some ISPs)
  • Improved NAT loopback (based on code from phuzi0n from the DD-WRT forums)
  • Advanced OpenVPN client and server support (all models except RT-N16)
  • Option to control Spanning-Tree Protocol support.
  • Netfilter ipset module, for efficient blacklist implementation
  • Configurable min/max UPNP ports
  • IPSec kernel support (except AC87U)
  • DNS-based Filtering, can be applied globally or per client

Web interface:
  • Improved client list, with DHCP hostnames
  • Optionally save traffic stats to disk (USB or JFFS partition)
  • Enhanced traffic monitoring: added monthly, as well as per IP monitoring
  • Name field on the DHCP reservation list and Wireless ACL list
  • System info summary page
  • Wireless client IP and hostname on the Wireless Log page
  • Wifi icon reports the state of both radios
  • Display the Ethernet port states
  • The various MAC/IP selection pulldowns will also display hostnames when possible instead of just NetBIOS names
  • Wireless site survey

Hope you folks like it
Asuswrt-Merlin: Customized firmware for Asus routers
Github: - Twitter: RMerlinDev
See the sticky post for more info.

Last edited by RMerlin; 10-26-2014 at 07:19 PM. Reason: Updated for 376.48 Beta 2 release
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Old 02-26-2013, 10:07 AM
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Important Links:

Official website:




Source code:



IRC: #asuswrt on DALnet
Asuswrt-Merlin: Customized firmware for Asus routers
Github: - Twitter: RMerlinDev
See the sticky post for more info.

Last edited by RMerlin; 04-23-2014 at 09:51 AM. Reason: Added IRC channel info
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asuswrt-merlin, custom firmware, rt-ac66u, rt-n16, rt-n66u

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