ASUS RT-AC51U Router Custom Firmware 3.4.3.9.099 Base Download

Posted at December 23, 2024 by PCI-DB Team

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Device Name	ASUS RT-AC51U Router Custom Firmware 3.4.3.9.099 Base
Category	Router Switch Access Point
Manufacturer	ASUS
File Size	7 MB
Supported OS	OS Independent

ASUS RT-AC51U Router Custom Firmware 3.4.3.9.099 Base Description

This package includes a customized firmware developed by Padavan that is targeted at some of ASUS’ routers. The present build brings new improvements, functions, bug fixes, and configurations, and can also boost the overall performance of the device.

Changes:

- Updated busybox to 1.24.1+.
- Updated OpenSSL to 1.0.1r.
- Updated OpenVPN to 2.3.10.
- Updated OpenSSH to 7.1p2.
- Updated ipset to 6.27.
- Updated miniupnpd to 1.9.20160119.
- Updated usb-modeswitch to 2.3.0, updated usb-modeswitch-data up to 2016-01-12.
- Minidlna: fixed external subtitles on Samsung Series J.
- Scripts: fixed broken Entware-ng script in the -098 build.
- Linux kernel: fixed short UDP reads regression introduced in the -098 build.
- Linux kernel: updated USB unusual_devs quirks.
- Linux kernel: updated USB modem tables.
- Linux kernel: fixed SD card driver issue on MT7621/MT7628.
- Ethernet switch: added support MT762x/MT7530 per-VLAN untag control.
- Ethernet switch: use only broadcast storm rate limit for MT762x/MT7530.
- Ethernet switch: fixed isolation after change WAN bridge mode to disable.
- Control: improved skip pre-DMZ rules logic.
- Control: enabled LAN DHCP client by default for AP Mode.
- Wireless: increase CE SKU TxPower limits for 2.4GHz (up to 100mW).
- WebUI: accept ecdsa and ed25519 to 'authorized_keys' textarea.
- WebUI: add control of Cron daemon and Crontabs.
- WebUI: add support SD card and SATA control.

ATTENTION:

- After the first upgrade from official firmware, all settings will be erased. Do not load settings (CFG file) from official firmware!!!
- After upgrade from any official ASUS firmware, WAN MAC address for RT-N14U/N11P is dynamically changed (not permanent) in last octet. Please check MAC binding from your ISP.

These features are NO LONGER AVAILABLE:

- WPS/WSC (completely disabled due to the serious security hole).
- ASUS Download Master is no longer supported. It was replaced by Transmission.

After upgrade to 3.X.3.8-085 (and higher) from any previous builds, please:

- Clear browser cache to properly render WebUI pages.
- Sync OpenVPN client and server settings with new controls.
- Update region timezone (for Russia only).
- Remember that the manual NVRAM reset is not required.

After manual NVRAM reset:

- Both Wireless AP security is WPA2-Personal with pre-shared key 1234567890 by default.
- HTTP and Telnet/SSH login:passw is admin:admin by default.

Base build Description:

[x] Linux kernel-3.0.101+ (with upstream backports).
[x] IPv6 full support (native and SIT tunnels).
[x] NTFS filesystem (Paragon ufsd 8.6 for ASUS).
[x] FAT16/FAT32/exFAT filesystem.
[x] EXT4/EXT3/EXT2 filesystem (EXT3/EXT2 via EXT4 driver).
[x] FUSE kernel modules.
[x] UVC camera kernel modules.
[x] NFS kernel modules (NFSv2/3 client/server).
[x] CIFS client kernel modules.
[x] IPSET kernel modules.
[x] LPR printing daemon.
[x] USB-over-Ethernet printing daemon.
[x] dropbear (SSH client/server).
[x] sftp (SSH FTP server).
[x] vsftpd (FTP server).
[x] samba (SMB server).
[x] xupnpd (multicast IPTV->UPnP proxy).
[x] openvpn (security VPN client/server).
[x] https server for WebUI.
[+] openssl binary (allow generate certificates for openvpn/https).
[+] tcpdump utility.
[-] minidlna (UPnP/DLNA A/V mediaserver).
[-] firefly (iTunes audio mediaserver).
[-] transmission (torrent client).
[-] aria2 (multi-protocol download manager).
[-] QoS kernel modules.
[-] IFB/IMQ kernel modules.
[-] USB HID kernel modules.
[-] XFS filesystem.
[-] openssh (BSD SSH client/server).
[-] parted utility.
[-] Stripped debug messages from Samba server.

Note:

- [x] > Mandatory
- [+] > Included
- [-] > Excluded

Installation Procedure:

- Save the downloadable package.
- Log into the router’s web user interface.
- Navigate to the firmware upgrade section of your wireless unit.
- Select the present firmware and configure your router to install this file.
- Wait as the device carries out this process.
- Reboot the unit if required.

About Router Firmware:

Before you consider downloading this firmware, go to the system information page of the router and make sure that the currently installed version isn’t either newer or matching this release.

Due to the large variety of router models and different methods for upgrading the device, it is highly recommended that you read and, above all, understand the installation steps before you apply the new firmware, even if you are a power user.

In theory, these steps shouldn’t be much of a hassle for anyone, because manufacturers try to make them as easy as possible, even if they don’t always succeed. Basically, you must upload the new firmware to the router through its administration page and allow it to upgrade.

If you install a new version, you can expect increased security levels, different vulnerability issues to be resolved, improved overall performance and transfer speeds, enhanced compatibility with other devices, added support for newly developed technologies, as well as several other changes.

If you’re looking for certain safety measures, remember that it would be best if you perform the upload using an Ethernet cable rather than a wireless connection, which can be interrupted easily. Also, make sure you don’t power off the router or use its buttons during the installation, if you wish avoid any malfunctions.

If this firmware meets your current needs, get the desired version and apply it to your router unit; if not, check with our website as often as possible so that you don’t miss the update that will improve your device.

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.

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