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Dynex DX-NRUTER v1

Manuf/OEM/ODM Gemtek WRTB-239GN

FCC approval date: 02 September 2008
UPC: 600603119040 (UPC DB, On eBay)
Country of manuf.: China

Amazon image

B0027Z4SZO (Flag of the United States.svg, On Amazon, On CCC)

Type: wireless router

Industry Canada ID: 3623A-DXNRUTER

Power: 12 VDC, 1 A
Connector type: barrel

CPU1: Broadcom BCM4703 (264 MHz)
FLA1: 4 MiB
4,194,304 B
32,768 Kib
4,096 KiB
32 Mib
0.00391 GiB
(Macronix MX29LV320DBTI-70G)
RAM1: 32 MiB
33,554,432 B
262,144 Kib
32,768 KiB
256 Mib
0.0313 GiB
(Qimonda HYB25DC256160CE-5)

Expansion IFs: none specified

WI1 chip1: Broadcom BCM4322
WI1 802dot11 protocols: bgn
WI1 MIMO config: 2x2:2
WI1 antenna connector: none

ETH chip1: Broadcom BCM4703
Switch: Broadcom BCM5325E
LAN speed: 100M
LAN ports: 4
WAN speed: 100M
WAN ports: 1


Additional chips
2.4GHz Power Amplifier IC;Skyworks;SE2528L;;2;

Stock bootloader: CFE 1.0.37

Stock FW OS: Linux 2.4.20

Third party firmware supported: DD-WRT • (List)

Flags: boot log

Default SSID: Dynex (1 addl. devices)
Default IP address:
the IP is used by 279 additional devices
of which 2 are Dynex devices

802dot11 OUI: 00:1C:DF (16 E, 32 W, 2007)
Ethernet OUI: 00:1C:DF (16 E, 32 W, 2007)

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

Product page
User manual

OEM Gemtek WRTB-239GN (Gemtek WRTB-239GN_V01)

"ENG-X10-2001R RoHS" is silkscreened on the board in the FCC photos.

Dynex DX-NRUTER on TechInfoDepot

On the DD-WRT forums (high-res internal images and label shot)

Per the manual, the default network name of your router is "Dynex" followed by six digits that are unique to your router. The default SSID in actuality appears to be just Dynex (at least when reset via the reset button and the web configuration interface).

Wi-Fi Certified (alt.) (as of 09/08/2008)




Pinout appears to be the same as the Belkin F5D8235-4 v1 (another Gemtek device). That pinout is below.

      (   )
(GND) (RxD)
(GND) (   ) --> Right side of board
(VCC) (   )
(VCC) [TxD]

Boot log[edit]

CFE version 1.0.37 for BCM947XX (32bit,SP,LE)
Build Date: Fri Aug 15 12:51:03 CST 2008 (tom@localhost.localdomain)
Copyright (C) 2000,2001,2002,2003 Broadcom Corporation.

Initializing Arena
Initializing PCI. [normal]
PCI bus 0 slot 0/0: vendor 0x14e4 product 0x0800 (flash memory, rev 0x09)
PCI bus 0 slot 1/0: vendor 0x14e4 product 0x4713 (ethernet network, rev 0x09)
PCI bus 0 slot 2/0: vendor 0x14e4 product 0x4713 (ethernet network, rev 0x09)
PCI bus 0 slot 3/0: vendor 0x14e4 product 0x4715 (USB serial bus, interface 0x10, rev 0x09)
PCI bus 0 slot 4/0: vendor 0x14e4 product 0x0804 (PCI bridge, rev 0x09)
PCI bus 0 slot 5/0: vendor 0x14e4 product 0x0816 (MIPS processor, rev 0x09)
PCI bus 0 slot 6/0: vendor 0x14e4 product 0x4712 (modem communications, rev 0x09)
PCI bus 0 slot 7/0: vendor 0x14e4 product 0x4718 (network/computing crypto, rev 0x09)
PCI bus 0 slot 8/0: vendor 0x14e4 product 0x080f (RAM memory, rev 0x09)
Initializing Devices.
Boot partition size = 262144(0x40000)
et0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller
et1: Broadcom BCM47xx 10/100 Mbps Ethernet Controller
CPU type 0x29006: 264MHz
Total memory: 32768 KBytes

Total memory used by CFE:  0x80700000 - 0x807A3EB0 (671408)
Initialized Data:          0x80739480 - 0x8073C370 (12016)
BSS Area:                  0x8073C370 - 0x8073DEB0 (6976)
Local Heap:                0x8073DEB0 - 0x807A1EB0 (409600)
Stack Area:                0x807A1EB0 - 0x807A3EB0 (8192)
Text (code) segment:       0x80700000 - 0x80739480 (234624)
Boot area (physical):      0x007A4000 - 0x007E4000
Relocation Factor:         I:00000000 - D:00000000

Device eth0:  hwaddr 00-1C-DF-EF-64-AF, ipaddr, mask
        gateway not set, nameserver not set
Loader:raw Filesys:tftp Dev:eth0 File:: Options:(null)
Loading: Failed.
Could not load :: Timeout occured
Loader:raw Filesys:raw Dev:flash0.os File: Options:(null)
Loading: ...... 1826816 bytes read
Entry at 0x80001000
Closing network.
Starting program at 0x80001000
CPU revision is: 00029006
Primary instruction cache 16kb, linesize 16 bytes (2 ways)
Primary data cache 16kb, linesize 16 bytes (2 ways)
Linux version 2.4.20 (vic_yu@cvs2) (gcc version 3.2.3 with Broadcom modifications) #3 Wed Aug 20 22:00:35 CST 2008
Setting the PFC to its default value
Determined physical RAM map:
 memory: 02000000 @ 00000000 (usable)
On node 0 totalpages: 8192
zone(0): 8192 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock2 noinitrd console=ttyS0,115200
CPU: BCM4704 rev 9 at 264 MHz
Calibrating delay loop... 263.78 BogoMIPS
Memory: 30180k/32768k available (1577k kernel code, 2588k reserved, 120k data, 68k init, 0k highmem)
Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)
Inode cache hash table entries: 2048 (order: 2, 16384 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
PCI: Initializing host
PCI: Fixing up bus 0
PCI: Fixing up bridge
PCI: Fixing up bus 1
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
devfs: v1.12c (20020818) Richard Gooch (
devfs: boot_options: 0x1
squashfs: version 3.1 (2006/08/19) Phillip Lougher
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0xb8000300 (irq = 3) is a 16550A
ttyS01 at 0xb8000400 (irq = 0) is a 16550A
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
PPP BSD Compression module registered
 Amd/Fujitsu Extended Query Table v1.1 at 0x0040
number of CFI chips: 1
Flash device: 0x400000 at 0x1c000000
Physically mapped flash: squashfs filesystem found at block 1019
Creating 5 MTD partitions on "Physically mapped flash":
0x00000000-0x00040000 : "boot"
0x00040000-0x003e0000 : "linux"
0x000fecd0-0x003e0000 : "rootfs"
0x003e0000-0x003f0000 : "factory"
0x003f0000-0x00400000 : "nvram"
sflash: found no supported devices
IEEE 802.2 LLC for Linux 2.1 (c) 1996 Tim Alpaerts
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
Linux IP multicast router 0.06 plus PIM-SM
ip_conntrack version 2.1 (256 buckets, 2048 max) - 392 bytes per conntrack
ip_conntrack_rtsp v0.01 loading
ip_nat_rtsp v0.01 loading
ip_tables: (C) 2000-2002 Netfilter core team
ipt_time loading
ipt_trigger : register proc success
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Ethernet Bridge 008 for NET4.0
802.1Q VLAN Support v1.7 Ben Greear <>
All bugs added by David S. Miller <>
VFS: Mounted root (squashfs filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 68k freed
Algorithmics/MIPS FPU Emulator v1.5
#sysinit: [/bin/sysinit]
mount: /dev/root is write-protected, mounting read-only
/bin/setPhy: not found
/proc/sys/kernel/panic_on_oops: cannot create
eth0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller
eth1: Broadcom BCM47xx 10/100 Mbps Ethernet Controller
insmod: init_module: bcm57xx: No such device
# interfaces_init......
ifconfig, eth0: Success
PCI: Enabling device 01:01.0 (0004 -> 0006)
eth2: Broadcom BCM4322 802.11 Wireless Controller
Wireless: mssid not enabled...
eth2: Numerical result out of range
eth2: Operation not supported
eth2: Invalid argument
eth2: Invalid argument
eth2: Operation not supported
eth2: Operation not supported
vlan0: Setting MAC address to  00 1c df ef 64 af.
VLAN (vlan0):  Underlying device (eth0) has same MAC, not checking promiscious mode.
vlan0: add 01:00:5e:00:00:01 mcast address to master interface
vlan0: dev_set_promiscuity(master, 1)
device eth0 entered promiscuous mode
device vlan0 entered promiscuous mode
device eth2 entered promiscuous mode
br0: port 2(eth2) entering listening state
br0: port 1(vlan0) entering listening state
# lan services init......
killall: wsccmd: no process killed
br0: port 2(eth2) entering learning state
br0: port 1(vlan0) entering learning state
br0: port 2(eth2) entering forwarding state
br0: topology change detected, propagating
br0: port 1(vlan0) entering forwarding state
br0: topology change detected, propagating
Wi-Fi Simple Config Application - Intel Corp.
Version: Build 1.0.5, November 19 2006
Initializing stack...button monitor start...!
Now starting stack
get mac = 00 1C DF EF 64 AF
DEVICE PIN: 56888799

******* MODE: Access Point *******

DEVICE PIN:56888799
WSC: In unconfiged AP mode, wait for start command....
Start UPnP
(easytest.c->main(395)) Start easytest 20060525
(easytest.c->main(400)) lan_ip is
(easytest.c->main(402)) mcast_ip is
(easytest.c->main(404)) mcast_port is 14675
(easytest.c->main(484)) Waiting product test packet...

easyconf: start 20080820
easyconf: Waiting for client to connect...
route: resolving gw
route: resolving gw
route: resolving gw
route: resolving gw
route: resolving gw
# wan_init......
Error with target_country...set to us!!!
vlan1: Setting MAC address to  00 1c df ef 64 b0.
tlvPtrChar* : func CMasterControl_InitiateRegistration  line 658 allocating memory 0x1000df40 for 0x1000cf90
saveCurrentChannel: not found
Waiting for Registrar to connect...
# Reset LAN port ........
Call lan_restart script to restart LAN ports .

BusyBox v1.1.0 (2008.06.05-03:34+0000) Built-in shell (msh)
Enter 'help' for a list of built-in commands.

# httpd : This is httpd...ssl_enabled is 0