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Question: Can you block or ignore ICMP packets?

Forum: The Linux Kernel Hackers' Guide
Keywords: ICMP ping Internet echo flood
Date: Sat, 22 Mar 1997 02:46:28 GMT
From: <>

I would like to know if you could block or ignore ICMP packets. If there is no way to block reception, then is there a way to prevent the kernel from replying? The reason is that I want to prevent other people from abusing the "ping" command and flooding me with ICMP packets. In particular, I want to block only when there is an excessive amount of packets being recieved. (ie. 25+ in a 10 sec period)


4. Feedback: ICMP send rate limit / ignoring by Jukka Santala
1. More: Omission in earlier rate-limit... by Jukka Santala
-> News: Patch worked... by Jukka Santala
3. More: Using ipfwadm by Charles Barrasso
1. None: Icmp.c and kernal ping replies by Don Thomas