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Asus RT-N12 B1

Supported Versions

Hardware Highlights




Architecture: MIPS
Vendor: Broadcom
Bootloader: CFE
System-On-Chip: Broadcom BCM5357B0KFBG
CPU Speed: 300Mhz
Flash size: 8MB
RAM: Winbond W9425G6JH 32MB SDRAM
Wireless: Broadcom BCM5357B0 bgn 2×2:2
Ethernet: Broadcom BCM5357B0 Fast Ethernet
Serial: Yes


Front View (Indicator leds) Rear View (switch ports, antenna connects)

Opening the case

Note: This will void your warranty!

  • To remove the cover remove the rubber feet towards the front of the case then remove all 4 screws from the bottom. The top cover will easily come off.

Main PCB
Top View (CPU, etc)


Console port J3 uses 3.3 V signaling at speed 115200. Header is pre-installed

1 2 3 4


OEM bootlog

CFE version @VERSION_TYPE@ based on BBP 1.0.37 for BCM947XX (32bit,SP,LE) Build Date: �10��圈 6 14:12:09 CST 2011 (root@vm-gitserver) Copyright (C) 2000-2008 Broadcom Corporation. Init Arena Init Devs. Boot partition size = 131072(0x20000) Found a 8MB ST compatible serial flash et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller @VERSION_TYPE@ CPU type 0x19749: 300MHz Tot mem: 32768 KBytes CFE mem: 0x80700000 - 0x8079FAD0 (654032) Data: 0x80735920 - 0x80738B50 (12848) BSS: 0x80738B50 - 0x80739AD0 (3968) Heap: 0x80739AD0 - 0x8079DAD0 (409600) Stack: 0x8079DAD0 - 0x8079FAD0 (8192) Text: 0x80700000 - 0x8073591C (219420) Device eth0: hwaddr 14-DA-E9-81-F7-B0, ipaddr, mask gateway not set, nameserver not set Null Rescue Flag. Loader:raw Filesys:tftp Dev:eth0 File:: Options:(null) Loading: TFTP Server. Failed. Could not load :: Timeout occured Loader:raw Filesys:raw Dev:flash0.os File: Options:(null) Loading: ....... 3846277 bytes read Entry at 0x80001000 Closing network. Starting program at 0x80001000 Linux version 2.6.22 (root@vm-gitserver) (gcc version 4.1.2) #12 PREEMPT Mon Oct 24 17:01:36 CST 2011 CPU revision is: 00019749 Found an ST compatible serial flash with 128 64KB blocks; total size 8MB Determined physical RAM map: memory: 02000000 @ 00000000 (usable) Initrd not found or empty - disabling initrd Zone PFN ranges: Normal 0 -> 8192 HighMem 8192 -> 8192 early_node_map[1] active PFN ranges 0: 0 -> 8192 Built 1 zonelists. Total pages: 8192 Kernel command line: root=/dev/mtdblock2 console=ttyS0,115200 init=/sbin/preinit Primary instruction cache 32kB, physically tagged, 4-way, linesize 32 bytes. Primary data cache 32kB, 4-way, linesize 32 bytes. Synthesized TLB refill handler (20 instructions). Synthesized TLB load handler fastpath (32 instructions). Synthesized TLB store handler fastpath (32 instructions). Synthesized TLB modify handler fastpath (31 instructions). PID hash table entries: 256 (order: 8, 1024 bytes) CPU: BCM5357 rev 2 at 300 MHz Using 150.000 MHz high precision timer. Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory: 27480k/32768k available (3076k kernel code, 5272k reserved, 475k data, 204k init, 0k highmem) Mount-cache hash table entries: 512 NET: Registered protocol family 16 PCI: no core PCI: no core PCI: Fixing up bus 0 Time: MIPS clocksource has been installed. NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 1024 (order: 1, 8192 bytes) TCP bind hash table entries: 1024 (order: 0, 4096 bytes) TCP: Hash tables configured (established 1024 bind 1024) TCP reno registered VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) squashfs: version 3.2-r2 (2007/01/15) Phillip Lougher fuse init (API version 7.8) io scheduler noop registered (default) HDLC line discipline: version $Revision: $, maxframe=4096 N_HDLC line discipline registered. Serial: 8250/16550 driver $Revision: $ 4 ports, IRQ sharing disabled serial8250: ttyS0 at MMIO 0x0 (irq = 8) is a 16550A RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: module loaded PPP generic driver version 2.4.2 PPP Deflate Compression module registered PPP BSD Compression module registered PPP MPPE Compression module registered NET: Registered protocol family 24 PPPoL2TP kernel driver, V0.17 PPTP driver version 0.8.4 pflash: found no supported devices sflash: squashfs filesystem found at block 1620 Creating 4 MTD partitions on "sflash": 0x00000000-0x00020000 : "boot" 0x00020000-0x007f0000 : "linux" 0x001950b0-0x007f0000 : "rootfs" 0x007f0000-0x00800000 : "nvram" nflash_poll: not ready nflash: found no supported devices GACT probability NOT on Mirror/redirect action on netem: version 1.2 u32 classifier Performance counters on input device check on Actions configured Netfilter messages via NETLINK v0.30. nf_conntrack version 0.5.0 (256 buckets, 2048 max) ctnetlink v0.93: registering with nfnetlink. ipt_time loading IPv4 over IPv4 tunneling driver GRE over IPv4 tunneling driver ipgre init: can't add protocol ip_tables: (C) 2000-2006 Netfilter Core Team ipt_time loading TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 Ebtables v2.0 registered 802.1Q VLAN Support v1.8 Ben Greear <> All bugs added by David S. Miller <> VFS: Mounted root (squashfs filesystem) readonly. Freeing unused kernel memory: 204k freed Warning: unable to open an initial console. Failed to execute /init /dev/nvram: No such file or directory [sighandler]: No more events to be processed, quitting. [cleanup]: Waiting for children. [cleanup]: All children terminated. [rc] convert asus values-01 [rc] Start convert_asus_values(0). *** [rc] read from nvram emf: module license 'Proprietary' taints kernel. et_module_init: passivemode set to 0x0 eth0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 5.100.138 wl_module_init: passivemode set to 0x0 eth1: Broadcom BCM4329 802.11 Wireless Controller 5.100.138 (WLTEST) Algorithmics/MIPS FPU Emulator v1.5 [rc] Turn off LAN ports for 10 seconds. [rc] eth_phy_down Hit enter to continue... NVRAM upgrade required. Starting. NVRAM upgrade complete. [shared] wl0_wep:[enabled] [rc] Start convert_asus_values(0). *** [rc] read from nvram insmod: ip_nat_starcraft.ko: no module by that name found insmod: ipt_NETMAP.ko: no module by that name found [rc] START 1808 vlan0: dev_set_allmulti(master, 1) vlan0: dev_set_promiscuity(master, 1) device eth0 entered promiscuous mode device vlan0 entered promiscuous mode vlan0: Operation not supported device vlan0 is already a member of a bridge; can't enslave it to bridge br0. device eth1 entered promiscuous mode eth1: Operation not permitted wlconf: PHYTYPE: 4 eth1: Invalid argument eth1: Invalid argument eth1: Operation not supported eth1: Operation not supported eth1: Invalid argument device eth1 is already a member of a bridge; can't enslave it to bridge br0. br0: port 2(eth1) entering learning state br0: port 1(vlan0) entering learning state br0: topology change detected, propagating br0: port 2(eth1) entering forwarding state br0: topology change detected, propagating br0: port 1(vlan0) entering forwarding state [parental] parental_ctrl_main() [parental] parental_clean_macfilter) [parental] parental_clients_mac(0) [parental] parental_clients_status(0) [parental] parental_macfilter_daytime(0) vlan1: Operation not supported info, udhcp client (v0.9.8) started vlan1: No such process /etc/resolv.conf: No such file or directory [rc] start httpd :[/www] starting... info, udhcp server (v0.9.8) started error, unable to parse 'start 100' syslogd: bad address '0' [rc]upnp_enable:[0] [rc]router_disable:[0] killall: eapd: no process killed lld2d: No such file or directory [rc] End convert_asus_values(0). *** [rc] End convert_asus_values(0). *** Url_filter_time [dhcpd] force set extra option dns cannot get proto entry: No such file or directory cannot get proto entry: No such file or directory killall: wps_monitor: no process killed killall: wps_ap: no process killed killall: wps_enr: no process killed Debug::sharedkeystr=(null) [wanduck]# Enable direct rule Unknown host [networkmap] Starting full scan! [rc] success start all services [rc] Update kernel timezone[1] Hit enter to continue... [rc] Turn on LAN ports. [rc] eth_phy_up


toh/asus/rt-n12b1.txt · Last modified: 2018/04/12 12:34 by danitool