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Old 02-11-2006, 01:35 PM   #1
ALInux
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Question ping through a specific interface

I want to ping through a specific interface...I looked up man ping...and from what I read I must:

ping -I "desired interface" www.google.com

But Iam a little bit confused about the result I got "never mind about that" can anybody confirm the above command ??
 
Old 02-11-2006, 02:10 PM   #2
win32sux
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works fine for me...

Code:
ping -I eth1 google.com

ping -I eth2 google.com
etc... etc... etc...
 
Old 02-11-2006, 02:14 PM   #3
gilead
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I can run ping -I ppp0 www.google.com and get replies - I can also run ping -I eth0 www.google.com and get destination host unreachable messages. What was the exact command you ran?
 
Old 02-11-2006, 03:20 PM   #4
win32sux
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BTW, when i said "works fine" i did of course mean that i'd get echo replies when pinging google.com through my internet interface, and a " Destination Host Unreachable" message when pinging it through my LAN interface - which is exactly what is supposed to happen - and is the reason i know the command "works fine"...
 
Old 02-12-2006, 06:58 AM   #5
ALInux
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when I do ping www.google.com or ping -I ppp0 www.google.com ....the ping command resolves the IP and that is it it just sits and replies nothing at all....
so I tried ping -I ppp0 -c 3 -W 10 www.google.com

[root@localhost Desktop]# ping -I ppp0 -c 3 -W 30 www.google.com
PING www.l.google.com (66.249.93.99) from 11.0.5.218 ppp0: 56(84) bytes of data.

--- www.l.google.com ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms

Any remedy for this issue ? I need it to check my connection
 
Old 02-12-2006, 12:37 PM   #6
gilead
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Do you have a firewall that could be dropping the packets?
 
Old 02-12-2006, 03:42 PM   #7
ALInux
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highly unlikely that it is something on my part...I checked my firewall and windows ping times out
 
Old 02-12-2006, 03:45 PM   #8
win32sux
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so it doesn't work from windows either?? are you sure your ISP isn't filtering PINGs??
 
Old 02-13-2006, 03:42 AM   #9
ALInux
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Well ...that is most propably the case...anyway to overcome that hurdle..I was trying to implement a script to check if my connection is up...since teh debian box has no monitor ...I use ssh...so that does not seem to help me out alot..
 
Old 02-11-2010, 11:52 AM   #10
web_developer
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I found the following worked on Debian.

ping -I <from-ip-address> <destination>

For example, if I have 2 cards in my machine
I can use:

ping -I 192.168.1.1 www(dot)google(dot)com

and

ping -I 192.168.1.2 www(dot)google(dot)com

My 2 cards would of course be assigned
192.168.1.1 and 192.168.1.2 IP addresses
in this example.
 
  


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