Computer Help forum

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Reply from Ping 127.0.0.1?

by rbt / February 23, 2007 5:02 AM PST

For a long time, I thought that when I issue the PING 127.0.0.1 command, the modem or the COM port would reply.

However, if I remove the modem and disable the COM ports, I still receive a reply. What device\software is replying to the command?

Any word or two about will be appreciate.

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If TCP/IP is installed, then 127.0.0.1 is
by R. Proffitt Forum moderator / February 23, 2007 5:10 AM PST

Put simply, it's a basic feature of all machines that have TCP/IP installed. 127.0.0.1 is your machine. It's mine too IF I have TCP/IP installed.

Not busted.

Bob

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It seems like your thinking of Hyperterminal
by scoolio / February 23, 2007 6:09 AM PST

Launch Hyperterminal and type in an AT command and hit enter. You will not see the AT string appear onscreen you will only get a result after hitting enter.

Depending on the connection type you choose you will get an OK on the screen if the device responding to the AT query.

Scoolio

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Thanks you for the clarifications.
by rbt / February 23, 2007 8:12 AM PST

So, the only way to test your dialup modem is to issue the commands:

ECHO ATA > COM1 for a dial tone.

ADTT 222-2222 to actually dial this phone number.

And so, I am assuming that if the modem responds to these commands, it is ready to connect to an ISP? Maybe!

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