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Linux - Networking This forum is for any issue related to networks or networking.
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Old 04-05-2012, 08:43 AM   #1
resetreset
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What is needed for a ping to be answered?


Is there a ping daemon or something?
 
Old 04-05-2012, 09:41 AM   #2
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It uses something called icmp protocol. There is no daemon but this protocol can be blocked by firewalls (including iptables at host level). Many things block icmp so it doesn't always work.

There is a discussion of it here:
http://www.techexams.net/forums/netw...rt-number.html
 
Old 04-05-2012, 03:38 PM   #3
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Ping must be sent. Must be received, the received side has to send reply the origination site has to receive.
 
Old 04-06-2012, 07:05 AM   #4
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Quote:
Originally Posted by jefro View Post
Ping must be sent. Must be received, the received side has to send reply the origination site has to receive.
Say what?
 
Old 04-06-2012, 03:15 PM   #5
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I underthought that.
 
  


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