Re: Traceroute and "ping" sockets: some questions

From: Dmitry Butskoy <redacted>
Date: Fri, 19 Aug 2011 15:19:16 +0400

I would like to ask some questions:

- Currently such "ping" sockets implemented for IPv4 only. Are there any
- plans to implement it for IPv6 as well?

I think the original authors of the kernel component said they would
work on this, but it hasn't materialized yet.

- Are there any plans to implement some "rate control" (maybe
- sysctl-configurable too), to restrict unprivileged users to send icmp
- echoes too fast (ie. faster than 200 ms -- the current ping(8)
- restriction)?

Why limit?  He can spam with UDP socket just as easily at any rate
he pleases, and rate limiting is policy issue and there relegated
to netfilter and/or the packet scheduler layer.