Linksys WRT54G

The Cisco/Linksys WRT54G
Linksys Product Page

Because this router has Linux based firmware its possible to replace portions of the firmware with custom programming. Of particular interest to VOIP users, many of the replacement firmware packages add much more usable QOS to the router than the official Cisco/Linksys firmware.

WARNING: newer retail versions of this device no longer support Linux (but read on; there is hope).
The warning above is old and false. LinkSys now actually has an OTS product with the Linux OS firmware installed and is available at retailers such as Frys and Micro Center. There is a price increase for the Linux versions, around $89.00.

As of version 5 of the hardware of the WRT54G(serial numbers starting with CDFA), Cisco has ported the platform to VXWorks, which is closed. See the OpenWRT Table of Hardware for more information on which devices run OpenWRT. In response to community pressure , Linksys also announced that they have released a version (dubbed Linksys WRT54GL) that is based on the version 4 hardware and will run Linux.

Since firmware release: 3.x.x from Oct 2004, limited QOS is now supported by the vendor on all versions of this router.
  • Linksys FAQ on how to configure QoS for this router

Cisco/Linksys download page for WRT54G

The Cisco/Linksys WRT54G
Linksys Product Page

Because this router has Linux based firmware its possible to replace portions of the firmware with custom programming. Of particular interest to VOIP users, many of the replacement firmware packages add much more usable QOS to the router than the official Cisco/Linksys firmware.

NOTE: There is a known SIP registration problem with the WRT54G v5 & v6 with firmware versions below 1.00.6~~:
A bug in the Linksys/VxWorks firmware version 1.00.6 on the WRT54G v5 and v6 can cause SIP registrations to fail regardless of NAT settings in Asterisk or on the phone/ATA. This has been verified with a Cisco 7940 running SIP 6.3 and with X-Lite. Updating to the latest firmware will fix the problem.

The 3rd party replacement firmware listed below offer additional features and more elaborate QOS.

Custom Replacement Firmware

  • sveasoft - adds QOS and other enhancements. Notice that the version 4 has an unstable DHCP server which mandates a reboot every few days. This bug is said to be found and corrected in the forthcoming version 6.See The Individual's Slashdot Journal For GPL source and binary download mirrors.
  • OpenWRT - Linux distribution for WRT54G, small core, with many optional packages including Asterisk!.
  • Wifi
  • EWRT — project closed down
  • DD-WRT - An implimentation originally based on Sveasoft Alchemy pre5, but incorporating many features of OpenWRT as well as RFlow traffic management, RADIUS authentication, SAMBA filesystem, internal FFS2 Partition and a working WDS system.

The Linksys WRT54GS is a newer model with additional memory and other improvements.
Different firmware is required, but most of the replacment firmware options are available for both models.

It is possible to run Asterisk on the WRT54G — see: Asterisk Linksys WRT54G
You can also use the SIP Express Router — consider the SIPatH Project

Cringely article on what you can do with a WRT54G
DSL Reports Forum Thread on custom firmware for the WRT54G
Broadband Reports Forum Thread sveasoft compared to wifi firmware

WRT54G Sites


See Also:


Available from:
  • America - AAVoIP.com Best Service! Best Salesman! Best VoIPstore!
http://simondirect.com/store/ Cisco VoIP IP Phones, Cisco Memory, Routers, Switches, Ships Same Day!

The Cisco/Linksys WRT54G
Linksys Product Page

Because this router has Linux based firmware its possible to replace portions of the firmware with custom programming. Of particular interest to VOIP users, many of the replacement firmware packages add much more usable QOS to the router than the official Cisco/Linksys firmware.

WARNING: newer retail versions of this device no longer support Linux (but read on; there is hope).
The warning above is old and false. LinkSys now actually has an OTS product with the Linux OS firmware installed and is available at retailers such as Frys and Micro Center. There is a price increase for the Linux versions, around $89.00.

As of version 5 of the hardware of the WRT54G(serial numbers starting with CDFA), Cisco has ported the platform to VXWorks, which is closed. See the OpenWRT Table of Hardware for more information on which devices run OpenWRT. In response to community pressure , Linksys also announced that they have released a version (dubbed Linksys WRT54GL) that is based on the version 4 hardware and will run Linux.

Since firmware release: 3.x.x from Oct 2004, limited QOS is now supported by the vendor on all versions of this router.
  • Linksys FAQ on how to configure QoS for this router

Cisco/Linksys download page for WRT54G

The Cisco/Linksys WRT54G
Linksys Product Page

Because this router has Linux based firmware its possible to replace portions of the firmware with custom programming. Of particular interest to VOIP users, many of the replacement firmware packages add much more usable QOS to the router than the official Cisco/Linksys firmware.

NOTE: There is a known SIP registration problem with the WRT54G v5 & v6 with firmware versions below 1.00.6~~:
A bug in the Linksys/VxWorks firmware version 1.00.6 on the WRT54G v5 and v6 can cause SIP registrations to fail regardless of NAT settings in Asterisk or on the phone/ATA. This has been verified with a Cisco 7940 running SIP 6.3 and with X-Lite. Updating to the latest firmware will fix the problem.

The 3rd party replacement firmware listed below offer additional features and more elaborate QOS.

Custom Replacement Firmware

  • sveasoft - adds QOS and other enhancements. Notice that the version 4 has an unstable DHCP server which mandates a reboot every few days. This bug is said to be found and corrected in the forthcoming version 6.See The Individual's Slashdot Journal For GPL source and binary download mirrors.
  • OpenWRT - Linux distribution for WRT54G, small core, with many optional packages including Asterisk!.
  • Wifi
  • EWRT — project closed down
  • DD-WRT - An implimentation originally based on Sveasoft Alchemy pre5, but incorporating many features of OpenWRT as well as RFlow traffic management, RADIUS authentication, SAMBA filesystem, internal FFS2 Partition and a working WDS system.

The Linksys WRT54GS is a newer model with additional memory and other improvements.
Different firmware is required, but most of the replacment firmware options are available for both models.

It is possible to run Asterisk on the WRT54G — see: Asterisk Linksys WRT54G
You can also use the SIP Express Router — consider the SIPatH Project

Cringely article on what you can do with a WRT54G
DSL Reports Forum Thread on custom firmware for the WRT54G
Broadband Reports Forum Thread sveasoft compared to wifi firmware

WRT54G Sites


See Also:


Available from:
  • America - AAVoIP.com Best Service! Best Salesman! Best VoIPstore!
http://simondirect.com/store/ Cisco VoIP IP Phones, Cisco Memory, Routers, Switches, Ships Same Day!

Created by: jht2, Last modification: Thu 14 of Jan, 2010 (09:46 UTC) by VoilensP
Please update this page with new information, just login and click on the "Edit" or "Discussion" tab. Get a free login here: Register Thanks! - Find us on Google+