How to set the Ethernet-port IP address on your Alcatel SpeedTouch Home/Pro ADSL modem?
This document describes how you can set the Ethernet-port IP address on an Alcatel SpeedTouch Home/Pro ADSL modem.
Messing with the software settings of your modem and/or messing with the registry or internal settings of your operating system can render your modem or operating system useless. Read the whole article and manual before you do any changes. Following these steps might work for you. It did for me and for many others, but that does not necessarily mean they will! I take no responsibility for anything bad that might happen to your OS or modem, and since you’re on your own – Do not ask me for help! It’s your modem!
Applying this hack will definitely VOID WARRANTY! If you are not experienced with tricks like these STOP NOW! Besides, some ISPs might stop supporting you if they find out that you messed up with your modem.
The modem offers a unique method to supply an IP address to the modem’s Ethernet port.
This method, called the Ping-of-Life, allows to provide the modem with an IP address without affecting other configurational settings.
The principle is fairly simple: a special ping packet will deliver an IP address to your modem.
Generally the procedure is as follows:
Most TCP/IP packages support the ARP and PING command. The Ping-of-Life can be executed from any PC on your local network.
Note: Make sure that the intended modem IP address and your PC share the same IP network ID. If not, the ping will be submitted with the MAC address of the default router instead of the special MAC group address.
Proceed as follows:
C:\WINDOWS>arp -d
C:\WINDOWS>arp -a No ARP Entries Found
This allows you to overview the current entries in the ARP cache (which should be empty. If not, clean it again).
C:\WINDOWS>arp -s 01-90-d0-80-01-01
<IP address> is a placeholder for the IP address to be assigned to the modem. It can be any address within your subnet as long as it is not used by any other member of your local network.
Note: Copy paste the above line. The MAC address should be exactly the same as written above.
C:\WINDOWS>arp -a Interface: 10.0.0.100 --- 0x4 Internet Address Physical Address Type 10.0.0.145 01-90-d0-80-01-01 static
(10.0.0.145 is used as an example, use your own preferred IP address).
C:\WINDOWS>ping 10.0.0.145 -t Pinging 10.0.0.145 with 32 bytes of data: Request timed out. Request timed out. Request timed out.
… and so on …
(10.0.0.145 is used as an example, use your own preferred IP address).
C:\WINDOWS>arp -d
C:\WINDOWS>ping 10.0.0.145 Pinging 10.0.0.145 with 32 bytes of data: Reply from 10.0.0.145: bytes=32 time