Modem or gateway

D-Link DSL-2740U

Projects for this device

Replacement firmware

OpenWrt

Replace router software with a customizable system for network controls and community packages.

How to get started

Follow the guide for your exact router version. The first installation may use its web interface, recovery mode or a serial connection.

Setup: Firmware replacement; route varies by router
You’ll need: Exact hardware revision, an appropriate OpenWrt release and its model-specific installation guide.

C2: Retired support documentedOpen device guide
C2: Open hardware record

Original project github.com

Recorded configuration: 4 MB flash; 32 MB RAM

Device support in source: Retired; check the documented hardware and older release resources.
Limitations: DSL modem
First installation: CFE web recovery

Sources

Features & details

Check the project and hardware shown for each feature.

Device details

d-link dsl-2740u c2 — device documentation (github.com)Device details — Source documentation (openwrt.org)

Hardware revision: C2

OpenWrt · C2

OpenWrt · C2 — Source documentation (openwrt.org)

Installation routes recorded: CFE web recovery
Recovery routes recorded: CFE web recovery

Hardware details

Documented hardware

d-link dsl-2740u c2 — device documentation (github.com)Documented hardware — Source documentation (openwrt.org)

Processor: Broadcom BCM6358
Hardware revision: C2
Flash: 4 MB
Processor: Broadcom BCM6358
Memory: 32 MB
Hardware revision: C2
Wi-Fi chip: Broadcom BCM4321 (mini-PCI)

Security

Saved scan 18 Oct 2026

No device-specific advisory matched our saved CVE research.

Check security advisories for this device · CVE.org