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Topic # 146655 25-May-2014 12:07
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I was having a think about port scanning and security around firewalls and other appliances the other day (probably spurred on by my reading of No Place To Hide).

I have blocked ICMP Ping requests on my WAN for a number of years now, with no adverse affects, but I was wanting to know....


What are the pros and cons of blocking/allowing ping on your WAN?







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  Reply # 1052741 25-May-2014 12:18
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internet does rely on ICMP to function optimally

have a read on http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol

your firewall should be able to disable just certain parts of ICMP

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Biddle Corp
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  Reply # 1052820 25-May-2014 14:52
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What do you see as the benefits?


 
 
 
 




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  Reply # 1052821 25-May-2014 14:53
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sbiddle: What do you see as the benefits?



If I knew the answer to that, I wouldn't be posting here asking :) 

It's blocked by default on dd-wrt.





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