Linksys E2100L

bgn (N300)
Advanced Wireless-N Router

Support	Support page
Wikipedia	Linksys routers
InfoDepot Wiki	Linksys E2100L v1.0
WikiDevi.wi-cat.ru	Linksys E2100L
3rd Party Firmware
dd-wrt	Supported
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	Linksys E2100L
FCC ID	Q87-E2100L
IC ID	3839A-E2100L
Type	wireless router
CPU1	Atheros AR9130
CPU1 Type	MIPS 24K
CPU1 Speed	400 MHz
Flash1 Chip	Macronix MX25L6405DMI-12G
Flash1 Size	8 MiB8,388,608 B <br />65,536 Kib <br />8,192 KiB <br />64 Mib <br />0.00781 GiB <br /> (Serial)
RAM1 Size	64 MiB67,108,864 B <br />524,288 Kib <br />65,536 KiB <br />512 Mib <br />0.0625 GiB <br />
RAM1 Chip	SK hynix HY5DU121622DTP-D43
nvram Size	32K
ETH chip1	Atheros AR9130
Switch	Realtek RTL8306SD
Ethernet Port Count	1-100MbE-WAN 4-100MbE-LAN
Wired Standard	IEEE 802.3/3u
802dot11 OUI: 68:7F:74 (13 E, 16 W) Ethernet OUI: 68:7F:74 (13 E, 16 W)
Stock bootloader	U-Boot 1.1.7
Expansion IF types	USB 2.0
USB ports	1
USB Hub Compatible	Yes
Power	12 VDC, 1.5 A
Connector type	barrel
Serial Port (UART)	yes
JTAG Port	yes
Other
Default IP address: 192.168.1.1 the IP 192.168.1.1 is used by 1326 additional devices of which 155 are Linksys devices Default login user: admin Default login password: admin admin:admin credentials used by 1343 additional devices of which 59 are Linksys devices
Manuf/OEM/ODM	CyberTAN
3rd Party Firmware Support	DD-WRT • (List) , OpenWrt • (List \| Dev \| DLs)
Retail
Availability	End of Life
FCC approval date	08 January 2010
UPC	745883589401 (UPC DB, On eBay)
ASIN	B003BEE6ZC
Country of manuf	China
Physical
Dimensions	7.98" x 6.27" x 1.3"
Radio 1
Chip1	Atheros AR9130
Chip2	Atheros AR9102
Wireless interface OUI	68:7F:74
Antenna Connector Type	RP-SMA
MIMO status	2x2:2
Wireless Standard	IEEE 802.11b/g/n
802.11n	up to 300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz

For a list of all currently documented Atheros (QCA) chipsets with specifications, see Atheros.
For a list of all currently documented Realtek chipsets with specifications, see Realtek.

For a list of all currently documented Linksys device with specifications, see Linksys.

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class

Overview

FCC photos show the device with the 32MB Winbond W9425G6EH-5. The OpenWrt wiki states the device uses the 64MB SK hynix HY5DU121622DTP-D43 (and 8MB Macronix MX25L6405DMI-12G Flash).

Links of Interest

On the OpenWrt wiki
On the DD-WRT forums
Support started
Listed on the 'Linksys routers' page on Wikipedia

Flashing

NOTE: During configuration or flashing a device, the only things that should be hooked to the device is the computer and power.

Flashing dd-wrt

v.24 SP2 - build 14935 - 20100812

You will first need to download this file for the flashing.

ftp://ftp.dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/2011/02-17-11-r16214/linksys_E2100L/e2100l-firmware.bin

Go into the linksys stock firmware and choose to reset to defaults.
Once that is finished, set a static ip on your machine to 192.168.1.6 with subnet 255.255.255.0 and gateway 192.168.1.1
Log back into the linksys firmware and find where to update the firmware.
Select the file linked above and then begin the flash procedure, this usually takes 6-7 minutes for it to finish properly, so be patient!
Once it is finished, close your browser, then reopen and browse to http://192.168.1.1 it should want you to set a user/password, do so.
When you are in dd-wrt's webgui, go to Administration > Factory Defaults
Select to "Restore Factory Defaults" This will effectively hard reset the router and ensure integrity of the flash.
Log back into the webgui @ http://192.168.1.1 and set a user/pass and enjoy dd-wrt!

Should you want to use DHCP you then may want to unset the static ip from your machine.

Flashing OpenWrt

This device is NOT RECOMMENDED for future use with OpenWrt due to low flash/ram.

DO NOT BUY DEVICES WITH 8MB FLASH / 64MB RAM if you intend to flash an up-to-date and secure OpenWrt version onto it! See 8/64 warning for details.

This device does not have sufficient resources (flash and/or RAM) to provide secure and reliable operation.

This means that you will not be able to install many packages, and that you might experience crashes due to OOM situations more or less often. See OpenWrt on 8/64 devices what you can do now.

On the OpenWrt ToH (techdata entry)
On the OpenWrt Wiki
On the OpenWrt Forum
Support started version: ?
Current supported version: ?

Please insert instructions here

Reverting

Reverting dd-wrt

Should you want to revert back to stock firmware then you should be able to download the stock firmware from Linksys's site and flash back using the webgui.