Linksys WRT54G Ultimate Hacking

WRTS4G Fundamentals

•

Chapter 1 35

Figure

1.17

WRTSL54GS Block Diagram

SIGe

RangeCharger

2521 A34

Wifi

Broadcom

BCM 4318EKFBG

802.11b/g

NEC

D

720101F1

usB ~.0/2.0

External

USB Port

0 0 0 0 0000 0 |

PWR USB DMZ WLAN 1 2 3 4 Internet

F

i

I CPU t

8MB

Memory

. vlanO vlanl

--eth2 --I~0 --7 I I 32MB

I I Tagging 1 J DOE

Lt I id I so,A,

ethO ~ ethl

/ /

I~ 10/100 Ethernet Switch [ J

vl~nl

,.

I I 1 i I

You will also notice that unlike the other WRT54G models, two adapters connect the CPU to

the Ethernet switch on this model: eth0 and ethl.The WAN port is given its own physical interface,

no longer sharing the same interface as the LAN. This will equate to better throughput and faster

network speed through the router, applying to traffic that travels between the WAN port and any of

the LAN assigned ports. The RAM and flash are among the highest capacity, with 8 MB of flash

(version 1.0) and 32 MB of RAM. The CPU is also the fastest, using the BCM4704 chipset and a

frequency of 266 MHz.

The outside appearance is drastically different. The rear view of the WRTSL54GS, as shown in

Figure 1.19, contains the four LAN, WAN, USB, and power ports.

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36 Chapter 1 • WRT54G Fundamentals

Figure 1.18 WRTSL54GS Internals

Figure 1.19 WRTSL54GS Rear View

WRT54G Fundamentals • Chapter 1 37

The front view displays the LED lights, as shown in Figure 1.20, which are the same as the LEDs

available in other models, except for the addition of the USB light. The USB light will be solid green

if there is a device attached to it.

Figure 1.20 WRTSL54GS Front View

This model also includes the Cisco SES button; however, it is not labeled "Cisco". The button is

yellow in color and is simply labeled "Secure Easy Setup," as shown in Figure 1.20.

.... ~!iiii~iii~i~ i!~'~' If you have, or are planning to install, OpenWrt on this device and you wish to use

~!i{i~!ii~iii ! the USB port to access a USB disk drive, you will need to install the appropriate soft-

ware packages through the following commands:

ipkg install kmod-usb-ohci

ipkg install kmod-usb-storage

ipkg install kmod-vfat

Then you will have to reboot the device.

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