The list has some 300 IP address or network. It means so many thousands of IP address, I don't know how nmap would be useful here. The best logis i figured,

(a) read the list

(b) pick the ip address and process it

(c) if ip address has asterisk(x.x.x.*) expand it to its all possible ip addresses (x.x.x.1/2/3..254) .

(d) process it by script.

(e) if telnet successful the app would throw its name etc .. record it on a file.

(f) if fails go to next ip address.

So the expansion is still a big deal here because 85% of the list is ip addresses like 3.3.3.* (yy.xxx.zz.*) format. I am thinking of Regex here.

About error:

Since my code woould fail to expand ip addresses which has last quadrant I tested the it with a IP list consisting of localhosts like below, 

127.0.0.1
127.0.0.1

[download]

If you know any easier way to expand the list of IP which has asterisk at last quadrant to the whole network i can test that portion. And yes this code is the one that has generated the error, i haven't altered things except IP list etc.

In reply to Re^2: Telnet list of IP and get information stored to a file by sanju7
in thread Telnet list of IP and get information stored to a file by sanju7

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