3Com 3CRWER100-75

ASAP I' ll try to improve this article. Now here is step by step installation of OpenWrt for experienced user. NOT for beginners.

From Attitude Adjustment generic repo

• Kernel: openwrt-atheros-vmlinux.lzma
• RootFS: openwrt-atheros-root.squashfs

• TFTP http://tftpd32.jounin.net/tftpd32_download.html
• Putty http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

You are doing everything at your own risk! Nobody is responsible for what you are doing. Don't do it if you don't know what you are doing! Incomplete BETA version of text!

• Set your IP: 10.10.12.2 (alt. 192.168.1.101)
• Mask: 255.0.0.0

• Start server listening on: 10.10.12.2 (alt. 192.168.1.101)

• Telnet to 10.10.12.72 (alt. 192.168.1.1) on port 9000 to get Redboot prompt
• It's better to use .bat (Because port 10.10.12.72:9000 open only 1 second)
• You can use some usefull script from https://gist.github.com/shayas/

:redboot
putty.exe -telnet -P 9000 10.10.12.72
goto redboot 

• Verify config ( last point where you can stop the procedure )

fconfig -l

• Clear flash

fis init

• Agree with format

y

• Download kernel from TFTP server

load -r -b %{FREEMEMLO} openwrt-atheros-vmlinux.lzma

• Create partition for kernel

fis create -r 0x80041000 -e 0x80041000 vmlinux.bin.l7

• Download RootFS from TFTP server

load -r -b %{FREEMEMLO} openwrt-atheros-root.squashfs

• Check free space

fis free

• Create partition for RootFS. Replace 0x2E0000 for number you get as difference between last number of free space and the first number. All in hex.

fis create -l 0x2E0000 rootfs

• Verify partition table

fis list

• Reboot into OpenWrt

reset

• Telnet to 192.168.1.1 on standard port(23)
• If it does not work try:

1) Telnet to 10.10.12.72 (alt. 192.168.1.1) on port 9000 to get Redboot prompt

RedBoot> fis load -l vmlinux.bin.l7
RedBoot> go 0x80041000 

2) Now you can see Open Wrt promt.

root@OpenWrt:/# 

3) Thus you have to correct booting procedure. Reboot device

Telnet to 10.10.12.72
RedBoot> fconfig -l 
RedBoot> fconfig boot_script_data

Enter following:

fis load -l vmlinux.bin.l7
go 0x80041000

Save and reboot.

• brown = gnd
• red = tx
• orange = rx

To find out the dev switch name:

root@OpenWrt:~# swconfig list
Found: switch0 - eth0

To check the switch ports list:

root@OpenWrt:~# swconfig dev switch0 show
Global attributes:
        enable_vlan: 1
        name: IP175C
        phy: 0
        reg: 0
        val: 12544
Port 0:
        status: up, 10 Mbps, full duplex, auto-negotiate
        link: 10
        tagged: 0
        pvid: 1
Port 1:
        status: down, auto-negotiate (in progress)
        link: 0
        tagged: 0
        pvid: 1
Port 2:
        status: down, auto-negotiate (in progress)
        link: 0
        tagged: 0
        pvid: 1
Port 3:
        status: down, auto-negotiate (in progress)
        link: 0
        tagged: 0
        pvid: 1
Port 4:
        status: up, 100 Mbps, full duplex, auto-negotiate
        link: 100
        tagged: 0
        pvid: 2
Port 5:
        status: up, 100 Mbps, cpu port
        link: 100
        tagged: 1
        pvid: 0
VLAN 1:
        vid: 1
        ports: 0 1 2 3 5t 
VLAN 2:
        vid: 2
        ports: 4 5t 

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