WRT54GS project
From Wildsong
23 Aug 2005
I just checked in on the uClibc site and discovered the new buildroot project. This is the best thing since sliced cheese. I set it up to use subversion and built a complete Linux system from scratch in just a few hours, including the entire gcc tool chain. I have it booting up a VMWARE machine.
Next I will make it boot an old PC using a 32MB compact flash in an IDE adapter.
2004 - So far, I have gotten my WRT54GS (from www.redzuco.com)
and flashed it with OpenWRT thereby voiding the waranty.
Potential projects
Install serial port header.
Install one MAX chip and a DB9 to use as a console port.
Connect the second serial port (at TTL signal levels) to the Garmin GPS-25.
Stream NMEA data from the GPS to clients
Parse NMEA data and make it a NTP server
Play with bandwidth management
Build a weather station
Notes
You can telnet into the router and it gives you a root prompt. It uses a bridged configuration.
# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
vlan0 Link encap:Ethernet HWaddr 00:12:17:0C:CB:37
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:102747 errors:0 dropped:0 overruns:0 frame:0
TX packets:479 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7878788 (7.5 MiB) TX bytes:75863 (74.0 KiB)
vlan1 Link encap:Ethernet HWaddr 00:12:17:0C:CB:38
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:63201 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:37541394 (35.8 MiB)
# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.123.0 * 255.255.255.0 U 0 0 0 br0
# dmesg CPU revision is: 00029007 Primary instruction cache 8kb, linesize 16 bytes (2 ways) Primary data cache 4kb, linesize 16 bytes (2 ways) Linux version 2.4.20 ([email protected]) (gcc version 3.3.3) #1 Mon Dec 6 04:13:50 EST 2004 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 rootfstype=squashfs init=/etc/preinit noinitrd console=ttyS0,115200 CPU: BCM4712 rev 1 at 200 MHz Calibrating delay loop... 199.47 BogoMIPS Memory: 30396k/32768k available (1408k kernel code, 2372k reserved, 100k 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: Disabled PCI: Fixing up bus 0 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 ([email protected]) devfs: boot_options: 0x1 JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB. pty: 256 Unix98 ptys configured 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''' two serial ports internally! Software Watchdog Timer: 0.05, timer margin: 60 sec loop: loaded (max 8 devices) PPP generic driver version 2.4.2 Physically mapped flash: Found an alias at 0x800000 for the chip at 0x0 Physically mapped flash: Found an alias at 0x1000000 for the chip at 0x0 Physically mapped flash: Found an alias at 0x1800000 for the chip at 0x0 number of CFI chips: 1 0: offset=0x0,size=0x20000,blocks=64 Flash device: 0x800000 at 0x1c000000 Physically mapped flash: squashfs filesystem found at block 913 Creating 5 MTD partitions on "Physically mapped flash": 0x00000000-0x00040000 : "pmon" 0x00040000-0x007e0000 : "linux" 0x000e4480-0x001b6435 : "rootfs" mtd: partition "rootfs" doesn't start on an erase block boundary -- force read-only 0x007e0000-0x00800000 : "nvram" 0x001c0000-0x007e0000 : "OpenWrt" sflash: found no supported devices NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 2048 bind 4096) ip_conntrack version 2.1 (256 buckets, 2048 max) - 352 bytes per conntrack ip_conntrack_pptp version 1.9 loaded ip_nat_pptp version 1.5 loaded ip_tables: (C) 2000-2002 Netfilter core team NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. NET4: Ethernet Bridge 008 for NET4.0 Bridge firewalling registered 802.1Q VLAN Support v1.7 Ben Greear <[email protected]> All bugs added by David S. Miller <[email protected]> VFS: Mounted root (squashfs filesystem) readonly. Mounted devfs on /dev Freeing unused kernel memory: 68k freed Algorithmics/MIPS FPU Emulator v1.5 diag boardtype: 00000101 using v2 hardware led -> 00 led -> 01 jffs2.bbc: SIZE compression mode activated. eth0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller 3.50.21.10 eth1: Broadcom BCM43XX 802.11 Wireless Controller 3.50.21.10 (Compiled in . at 20:53:00 on Jan 21 2004) device eth0 entered promiscuous mode vlan0: add 01:00:5e:00:00:01 mcast address to master interface device eth1 entered promiscuous mode br0: port 2(eth1) entering learning state br0: port 1(vlan0) entering learning state br0: port 2(eth1) entering forwarding state br0: topology change detected, propagating br0: port 1(vlan0) entering forwarding state br0: topology change detected, propagating vlan1: Setting MAC address to 00 12 17 0c cb 38. vlan1: add 01:00:5e:00:00:01 mcast address to master interface led -> 00
If eth0 is the wired and eth1 is the wireless, where is the WAN port?
Links
Lud's Linux Corner (WRT54GS page) Kismet, SNMPd
BatBox Linux Installs into a ramdisk, to allow exploring and experimenting with a stock WRT.
