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[About] Asuswrt-Merlin - custom firmware for Asus routers

Discussion in 'Asuswrt-Merlin' started by RMerlin, Aug 30, 2012.

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  1. RMerlin

    RMerlin Super Moderator

    Apr 14, 2012
    This is a customized version of Asuswrt, the firmware developed and used by Asus on many of their routers.

    Official support:
    RT-AC66U_B1 (use the RT-AC68U firmware)
    RT-AC68U/RT-AC68P/RT-AC68UF/RT-AC1900/RT-AC1900P (same firmware)
    RT-AX3000 (use the RT-AX58U firmware)

    No longer actively supported:

    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 :)


    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
    • User scripts that run on specific events
    • Cron jobs
    • Ability to customize the config files used by the router services
    • Ability to turn off router LEDs
    • Entware easy setup script (alternative to Optware - the two are mutually exclusive) (unavailable on RT-AC86U)
    • SNMP support (based on experimental code from Asus)
    • Nano text editor (for more user-friendly script editing)
    • NTP daemon, which can synchronize your client devices
    • TLS 1.3 support for some services (OpenSSL 1.1.1)
    Disk sharing:
    • Enable/disable the use of shorter share names
    • NFS sharing (through webui)
    • Allow or disable WAN access to the FTP server
    • Updated Samba version (3.6), with SMB2.0 support
    • TLS support for the FTP server
    • Force acting as a Master Browser
    • Act as a WINS server
    • SSHD support for key-based authentication
    • Allows tweaking TCP/UDP connection tracking timeouts
    • CIFS client support (for mounting remote SMB share on the router)
    • User-defined options for WAN DHCP queries (required by some ISPs)
    • Advanced OpenVPN client and server support
    • Support for new OpenVPN 2.4 features like NCP and LZ4
    • Netfilter ipset module, for efficient blacklist implementation
    • Configurable min/max UPNP ports
    • IPSec kernel support (N66/AC66 only)
    • DNS-based Filtering, can be applied globally or per client
    • Custom DDNS (through a user script)
    • TOR support, individual client control (based on experimental code from Asus)
    • Policy routing for the OpenVPN client (based on source or destination IPs), sometimes referred to as "selective routing")
    • DNSSEC support
    • fq_codel queue discipline for QoS (ARM-based models only)
    • Full cone NAT support (RT-AC86U only)
    • Detailed wireless troubleshooting information (RT-AC86U only)
    • Modern DDNS client (In-a-Dyn), with HTTPS support
    • DNS-over-TLS support
    • Redirect NTP client queries to the router's own NTP daemon
    Web interface:
    • Performance improvements
    • Optionally save traffic stats to disk (USB or JFFS partition)
    • Enhanced traffic monitoring with graphical reports of historical data
    • Traffic report per IP (except on RT-AC86U)
    • Hostname field on the DHCP reservation page
    • System information summary page
    • Wifi icon reports the state of both radios
    • Wireless site survey
    • Advanced Wireless client list display, including automated refresh
    • Redesigned layout of the various System Log sections
    • Editable fields for some pages
    • User-provided SSL certificate

    Hope you folks like it :)
    Last edited: Apr 5, 2020
  2. RMerlin

    RMerlin Super Moderator

    Apr 14, 2012
    Last edited: Feb 23, 2020
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