The WRT54GC is the 'Compact' version of the WRT54G. It has a built-in antenna as well as an SMA antenna connector instead of RP-TNC.
The Linksys WRT54GC is an ADSL gateway with wireless acccess point integrated.
|Version/Model||Launch Date||S/N||OpenWrt Version Supported||Model Specific Notes|
|WRT54GC v2||-||-||non-detachable external antenna|
OEM source code may be available at: http://support.linksys.com/en-eu/gplcodecenter
|@ MHz||4MiB||1MiB||4 x 1||No|
Manufacturer's site: http://support.linksys.com/en-eu/support/routers/WRT54GC
Note: This will void your warranty!
Having spent about seven hours trying to take the thing out of its case, here's what I found out:
→ port.serial general information about the serial port, serial port cable, etc.
How to connect to the Serial Port of this specific device:
→ port.jtag general information about the JTAG port, JTAG cable, etc.
JTAG port on WRT54GC v3 could be the unpopulated 12 solder-point group labeled JP1.
How to connect to the JTAG Port of this specific device:
More stuff about the router:
Pictures and more information available on my website: http://yasha.okshtein.net/wrt54gc/.
I really like this device: it's small and uses only 3.3v. I'd really love to get OpenWrt on it, possibly for a future version of my Wifi Car. Any takers? The router is quite cheap at $39 (i got it for $29 on Black Friday), but at that price, most users would opt for other, fully supported, routers.
Little test :
chtitux@localhost ~/src $ nmap 192.168.2.1 -p 80 -A Starting Nmap 4.01 ( http://www.insecure.org/nmap/ ) at 2006-06-10 19:15 CEST Interesting ports on 192.168.2.1: PORT STATE SERVICE VERSION 80/tcp open http? 1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at http://www.insecure.org/cgi-bin/servicefp-submit.cgi : SF-Port80-TCP:V=4.01%I=7%D=6/10%Time=448AFE26%P=i686-pc-linux-gnu%r(GetReq SF:uest,8A,"HTTP/1\.0\x20401\x20Unauthorized\r\nServer:\x20IP_SHARER\x20WE SF:B\x201\.0\r\nWWW-Authenticate:\x20Basic\x20realm=\"WRT54GC\"\r\nContent SF:-type:\x20text/html\r\n\r\n401\x20Unauthorized");
Is it linux-based? Probably not. It's returning part of your User-Agent message, or some other message that identifies the host OS type of the originating message. All it tells us is that your computer is i686-pc-linux-gnu, but tells us nothing of the router. At 1MB FLASH, my money's on VxDoesntWorks.
The WRT54GC is based on the Sercomm IP806SM reference design, which is same platform as the Airlink101 AR315W, Alloy WRT2454AP, and Hawking HWR54G (Rev. M).
The unit comes with an internal antenna. It's possible to add an external antenna via the R-SMA plug. There seems to be a mechanical switch that gets (de-)activated when you open the tap of the external antenna port.
Chips (from the FCC Internal photos)