Go to navigation
Essential
Model name WRT54G
RRP $90
Release date 12 Jan 2002
Current model Yes 
Linux capable router has been moved to the WRT54GL
LAN connectivity
10 Mbps LAN ports 0
10/100 Mbps LAN ports 4
10/100/1000 Mbps LAN ports 0
Auto crossover detection Yes 
Power over Ethernet No 
USB ports 0
Router
WAN ethernet port maximum speed (Mbps) 100
BigPond Cable login client Yes 
DHCP relay Yes 
With 3rd party firmware
DMZ Yes 
DNS forwarding Yes 
With 3rd party firmware
IPv6 Support Yes 
With 3rd party firmware
Multi-homed No 
NAT routing Yes 
PCMCIA slot for wireless broadband cards No 
Port forwarding Yes 
Port forwarding of ranges Yes 
Port triggering Yes 
PPP auto-reconnect Yes 
RIPv1 Yes 
With 3rd party firmware
RIPv2 Yes 
With 3rd party firmware
UPnP support Yes 
DHCP server Yes 
PPPoE client Yes 
QoS prioritisation Yes 
QoS for VoIP Yes 
Rate limiting of IP traffic Yes 
Rate limiting of LAN ports Yes 
With 3rd party firmware
ToS prioritisation No 
With 3rd party firmware
WiFi
Default SSID linksys
Multiple SSID Yes 
With 3rd party firmware
Wireless Distribution System (WDS) compatible Yes 
With 3rd party firmware
Access point mode Yes 
Wireless client mode Yes 
Requires 3rd Party Firmware
Wireless bridge mode Yes 
With 3rd party firmware
Multipoint bridge mode Yes 
With 3rd party firmware
Repeater mode Yes 
With 3rd party firmware
WEP-64bit Yes 
WEP-128bit Yes 
WEP-256bit No 
WPA Yes 
WPA-PSK Yes 
WPA2 Yes 
WPA2-PSK Yes 
802.1X EAP support Yes 
RADIUS
802.11a (54 Mbps) No 
802.11b (11 Mbps) Yes 
802.11b+ (22 Mbps) No 
802.11g (54 Mbps) Yes 
802.11g "Super-G" (108Mbps) No 
Draft 802.11n (Pre-N) No 
802.11n (2.4GHz) No 
Internal antenna(s) 0
External antenna(s) 2
External Antenna Removable? Yes 
Firewall
ActiveX blocking Yes 
With 3rd party firmware
Cookie blocking Yes 
With 3rd party firmware
DoS protection Yes 
Firewall Log Yes 
Very rudimentry log (with offical firmware) With 3rd party firmware logging is great
Java blocking Yes 
With 3rd party firmware
Keyword filtering Yes 
MAC filtering Yes 
SPI firewall Yes 
URL filtering Yes 
Maximum number of rules 10
Unlimited With 3rd party firmware
Firewall can be updated Yes 
With 3rd party firmware
VPN
IPSec client Yes 
With 3rd party firmware
IPSec server Yes 
With 3rd party firmware
IPSec simultaneous tunnels 0
Limit not specified for IPSec passthrough.
L2TP passthrough Yes 
PPTP client Yes 
With 3rd party firmware
PPTP passthrough Yes 
With 3rd party firmware
PPTP server Yes 
With 3rd party firmware
RADIUS support Yes 
As client. Also can act as a server with third party firmware.
VoIP
PSTN fallback No 
VoIP Dial Plans Yes 
Asterisk can be installed on the device, using third party firmware. See http://www.voip-info.org/wiki-Asterisk+Linksys+WRT54G
Supports Telephony features (caller ID, call forward, etc) Yes 
Asterisk can be installed on the device, using third party firmware.
VoIP provider config presets No 
Misc hardware info
Warranty period (months) 36
Built-In RAM (MBytes) 0
Varies depending on version
Firmware upgradable Yes 
xDSL Chipset Varies depending on model
PCI card No 
ExpressCard sized No 
PCMCIA card No 
USB dongle sized No 
Wall mountable Yes 
Requires optional $29 plastic mounting plate.
Ruggedised/weatherproof No 
Linux drivers available N/A 
Cross platform - no drivers required.
Mac drivers available N/A 
Cross platform - no drivers required.
NTP client Yes 
NTP server Yes 
With 3rd party firmware
DDNS client Yes 
Supports DynDNS.org and TZO.com.
SNMPv1 capable Yes 
SNMPv2 capable Yes 
SNMPv3 capable Yes 
Event/Syslog logging Yes 
With 3rd party firmware
Configuration
Backup/Restore functionality Yes 
Centralised management No 
Quick configuration wizard Yes 
Through Windows application
Remote configuration Yes 
Has to be enabled in configuration first.
Serial based configuration No 
Serial console port No 
Two internal serial ports. Not connected anywhere unless you solder them.
SSH administration Yes 
With 3rd party firmware
SSL secure web configuration Yes 
Not enabled by default
Telnet/CLI configuration Yes 
With 3rd party firmware
Web based configuration Yes 
Windows application for configuration Yes 
Installation CD contains Windows app to assist with installation, plus Norton Internet Security. Not necessary to use for proper operation of WRT.
Default IP address 192.168.1.1
Default admin username admin
Default admin password admin
Support
Official model website http://www1.linksys.com/international/product...
User Guide/Manual ftp://ftp.linksys.com/international/userguide...
Firmware updates http://www1.linksys.com/international/firmwar...
Manufacturer Datasheet ftp://ftp.linksys.com/international/datasheet...
Print quality high-res image http://www1.linksys.com/press/tiffimage/wrt54...

There are active modding groups for the WRT54G and related devices. These devices are Linux based, and Linksys released the sources to fulfil their obligations under the GPL.

DD-WRT is simply a project which is based on the official GPL Sources of Sveasoft Alchemy. Most Powerful firmware around

OpenWrt is dedicated to creating and maintaining an up-to-date Linux distro for the WRT. There are also guides at this site to adding extra storage, serial ports and other hardware devices. This is not for the faint of heart or weak of bowel.

Tomato Firmware is a small, lean and simple replacement firmware.

v1.0 – v4.0 devices were based on a Linux platform from CyberTAN. v5.0 is VxWorks based.

Linksys have since re-released the old Linux based version as the WRT54GL. They are 100% identical to the original WRT54G v4.0 units.

WRT54G H/W Version Identification:
CDF0 = WRT54G v1.0
CDF1 = WRT54G v1.0
CDF2 = WRT54G v1.1
CDF3 = WRT54G v1.1
CDF5 = WRT54G v2.0
CDF7 = WRT54G v2.2
CDF8 = WRT54G v3.0
CDF9 = WRT54G v3.1
CDFA = WRT54G v4.0
CDFB = WRT54G v5.0
CDFC = WRT54G v5.1
CDFD = WRT54G v6.0
CDFE = WRT54G v7.0
CDFK = WRT54G v7.2
CDFF = WRT54G v8.0
CDFG = WRT54G v8.0
CDFJ = WRT54G v8.2

It is now possible to run Linux on the WRT54G v5.0, with some caveats (ie, half the flash ROM and RAM of true Linux models). Several third party firmwares such as DD-WRT micro already work.
http://www.bitsum.com/openwiking/owbase/ow.asp?WRT54G5%5FCFE

DD-WRT specific information on firmware compatibility for the various WRT54G/GS/GL hardware versions http://www.dd-wrt.com/wiki/index.php/Linksys_WRT54G/GL/GS/GX.