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Configuring Linksys WRT54GS Series Routers - Nextiva
https://www.nextiva.com/support/articles/linksys-wrt54gs-series.html
The ideal network involves your Internet Service Provider (ISP) connecting onsite to a stand-alone modem that connects to a router, preferably a router recommended to you from Nextiva. If you have more devices on your network than ports on your router, you can connect a switch to your router to expand the number of ports....
Linksys Official Support - Linksys WRT54G Wireless-G ...
https://www.linksys.com/us/support-article?articleNum=142393
The default IP Address is 192.168.1.1. On the log in window, leave the username blank and the password is “admin”. 3. Can the router act as a DHCP server? Yes. The router is capable of acting as a DHCP server. 4. What is the maximum number of IP Addresses that the router can support? The router can support up to 253 IP Addresses. 5.
Linksys WRT54G, WRT54GL and WRT54GS - OpenWrt Wiki
https://openwrt.org/toh/linksys/wrt54g
Linksys WRT54G, WRT54GL and WRT54GS This device is NOT RECOMMENDED for future use with OpenWrt due to low flash/ram. DO NOT BUY DEVICES WITH 4MB FLASH / 32MB RAM if you intend to flash an up-to-date and secure OpenWrt version (18.06 or later) onto it! See
RoutersVoip - Diamondcard.us Wiki. Support for VOIP, IAX2 ...
http://wiki.diamondcard.us/podwiki?page=RoutersVoip
However there have been interesting issues with Linksys WRT54 routers. X-Lite SIP phone wasn't working behind generic setup with WRT54 router when it was running on a computer connected over Wi-Fi. It was working fine when computer was connected to Ethernet port. Same issue was found with WRT54GL running OpenWrt firmware.
Turn a WRT54GL into an igate! - Dimebank
http://www.dimebank.com/cak/k6dbg/k6dbg_igate.html
The WRT54 is a Broadcom device (brcm) so you need to choose the kernel carefully if you want wifi. Connect your computer to one of the four LAN ethernet ports. The WRT54 will be happy with a normal cable (crossover not needed). Note that, depending on your OS, you may lose your network route to the "outside world" at this point.
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