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September 08, 2026 6 min read
User's guide for the Legrand On-Q DA1054 4-Port Gigabit Enhanced Router/Switch, covering features, installation, and network configuration.
User's guide for the Legrand On-Q 4 Port Gigabit Enhanced Router/Switch (P/N DA1054) — a hardware-configurable network device that operates either as a router with an integrated 4-port Gigabit Ethernet switch, or as a 5-port Gigabit Ethernet switch for use with a third-party external router.
The DA1054 is the perfect solution to connect a small group of PCs to a high-speed broadband Internet connection. Up to 253 users can share high-speed Internet access simultaneously via a single IP address (Internet account) from a Cable/xDSL modem. Built-in NAT technology also serves as an Internet firewall, monitoring and filtering all incoming data packets, with optional Client Filtering to control internal users' Internet access. The built-in 4-port Gigabit Ethernet Switch eliminates the need for an additional hub/switch.
Note: Legrand Unity systems need to be upgraded to firmware release 2.2.x or later to properly function with this router.
The Router/Switch connection area includes: a DC Input connector (power supply), a WAN (Internet) port — 8-position RJ-45 jack to Cable/DSL/FIOS modem, Local Switch Ports — 8-position RJ-45 jacks from room outlets, a Routing Switch that disconnects the router from the 4-port switch when an external router is used (converts the WAN port to a 5th switch port; requires power re-cycle), and a Reset Button (a quick press cycles power; a 10-second press and hold restores factory defaults, clearing all user settings including username, password, IP address, and subnet mask).
Best installed during new construction in two phases: "rough-in" (before drywall) and "trim-out" (after drywall is installed and painted).
Note: Use proper tools and standard TIA 568A rules to prep and terminate Cat 5e/6 cable — a Cat 5 Cable Stripper, RJ45 Crimp Tool, and 110 Punchdown Tool.
Configure from a laptop connected directly to a Local Switch Port, or from a PC in any room connected through an outlet patched back to the enclosure. Either way, the PC needs an Ethernet Network Interface Card set to DHCP (obtain IP addressing automatically). The Router/Switch's default IP address is 192.168.40.254 on subnet 255.255.255.0.
Recommended browser: Microsoft Internet Explorer 6.00+ with Java support (or Firefox/Chrome).
| Mode | Description |
|---|---|
| Bridge | All Ethernet ports are bridged together and the client connects to the ISP access point. NAT is enabled; PCs on Ethernet ports share the same IP to the ISP through the LAN. |
| Gateway | Device connects to the Internet via ADSL/Cable Modem. NAT is enabled; PCs share the same IP to the ISP through the WAN port. Connection type set up in the WAN page: Static, DHCP Client, PPPoE, PPTP, or L2TP. |
| Field | Description / Default |
|---|---|
| IP Address | Default: 192.168.40.254 |
| Subnet Mask | Default: 255.255.255.0 |
| Default Gateway | Default: 192.168.40.254 |
| DHCP Server | Server or Disable — default: Server |
| DHCP Client Range | Default: 192.168.40.100 – 192.168.40.200 |
| Static DHCP | Reserve an IP for a specific MAC address — default: Disable |
| Domain Name | Set up to three alternate DNS servers — default: Null |
| 802.11d Spanning Tree | Enable or Disable — default: Disable |
| Clone MAC Address | Replace WAN MAC address with a specific PC's MAC, if required by your ISP |
| Type | Description |
|---|---|
| DHCP Client | Dynamic IP assignment — the typical setup. Default MTU: 1492 bytes. |
| Static IP | Fixed IP setup with IP Address, Subnet Mask, Gateway, and DNS 1-3 provided by your ISP. Default MTU: 1500 bytes. |
| PPPoE | Requires a User Name and Password from your ISP (case-sensitive), plus Service Name and Connection Type (Continuous, Connect on Demand, or Manual). Default MTU: 1452 bytes. Idle Time default: 5 minutes (1–1000 min range, for Connect on Demand). |
| PPTP | Point-to-Point Tunneling Protocol connection. |
| L2TP | Layer 2 Tunneling Protocol connection. |
Additional WAN options include IGMP Proxy, Ping/Web Server access on WAN, and IPsec/PPTP/L2TP/IPv6 pass-through for VPN connections — all individually enabled via checkbox on the WAN interface page.
Legrand — 301 Fulling Mill Road, Suite G, Middletown, PA 17057 — (800) 321-2343 — www.onqlegrand.com — Doc. 1308150 Rev. C — ©2012 Legrand, Inc.
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