finding external IP

willigiann · 12-14-2005, 04:37 AM

Hello guys!
i have a router to control my internet connection and i am looking for a way to find the external ip. i know thatyou are going to say to me "whatsmyip.com" but what i really want is a console command that will give me back my ip. do you know how?

Sargek · 12-14-2005, 05:19 AM

The easy way to do this is to look in your router's configuration - it will state what the IP is your ISP is providing.

willigiann · 12-14-2005, 06:23 AM

maybe was my mistake for not clear it. i want my computer to find the outside ip automatically and then send it by e-mail somewhere without me be inside the network.

michaelk · 12-14-2005, 07:01 AM

Have you done any googling?
lynx -dump http://whatismyip.com | awk '/Your/ {print $4}'

FYI you can sign up with one of the free dynamic IP DNS sites like www.noip.com. No need to worry about changing IP addresses.

willigiann · 12-14-2005, 04:43 PM

i tried with lynx but i couldn't make it work. anyway i know that about dyndns services but i have a problem, i have a netgear router which is being hacked all the time and as a result they change me my IP, so when i ping my self i get back an IP something like 192.168.4.200 instead of my real IP. so i need someone "from inside" to tell me the true IP. so this command you gave me will be my insider

willigiann · 12-14-2005, 05:01 PM

what i am going to do is this: lynx -dump http://whatismyip.com | awk '/Your/ {print $4}' > test && mail qwerty@qwerty.qw -q test -s mycurrentip
what i still looking for is about the mail program how am i going to say to the program "send" i found that if you are typing a mail you press ctrl+D but what do you do in such a case?

michaelk · 12-14-2005, 06:01 PM

Sounds like you need to fix the leaks.
Is the router updated with the latest firmware?
What services are you allowing through the router?
Is this a wireless router?
What distribution / version of linux are you running?

Quote:

so when i ping my self i get back an IP something like 192.168.4.200 instead of my real IP

Internal or external ping? router or linux PC?
Have you changed the router's default password?

willigiann · 12-15-2005, 03:22 AM

Is the router updated with the latest firmware?
-The only version i found is this> http://kbserver.netgear.com/release_notes/D102358.asp
What services are you allowing through the router?
-apache 80
-ssh 22
-remote configuration 8080
Is this a wireless router?
-yes, 64bit encoding
What distribution / version of linux are you running?
-SuSE 10 updated
Internal or external ping?
-external
router or linux PC?
-both
Have you changed the router's default password?
-yes, a mix of letters,capitals,numbers,symbols.

Hamsjael · 12-15-2005, 04:51 AM

You Can use traceroute to display the outside of the router, just need to figure out which line displays your external router Interface. Then it should be quite easy to mail the rigth line to yourself.

regards

Brian

bruse · 12-15-2005, 05:13 AM

After some exper. i have found that Just pinging the internal IP address will give u the external IP address.

Pls let me know.?

willigiann · 12-15-2005, 05:20 AM

well first of all i want to thank all of you for your answers, but now there is only one thing i don't know. what shall i write after

Quote:

lynx -dump http://whatismyip.com | awk '/Your/ {print $4}' > test && mail qwerty@qwerty.qw -q test -s mycurrentip

in order to send the e-mail?

bruse · 12-15-2005, 05:27 AM

After some exper. i have found that Just pinging the internal IP address will give u the external IP address.

Pls let me know.?

michaelk · 12-15-2005, 07:30 AM

How about
ip='lynx -dump http://whatismyip.com | awk '/Your/ {print $4}''
mail -s $ip qwerty@qwerty.qw

willigiann · 12-15-2005, 11:59 AM

Quote:

Originally Posted by michaelk

How about
ip='lynx -dump http://whatismyip.com | awk '/Your/ {print $4}''
mail -s $ip qwerty@qwerty.qw

its not working on me, does on you?
billg@server:~> ip="lynx -dump http://whatismyip.com | awk '/Your/ {print $4}'"
billg@server:~> mail -s $ip billg@billg.gr
"mp" is not a user of this system

michaelk · 12-15-2005, 01:55 PM

My fault should of been in a script.
#!/bin/bash
ip='lynx -dump http://whatismyip.com | awk '/Your/ {print $4}''
mail -s $ip qwerty@qwerty.qw

Save the file and change its permissions for executable.