icmp and raw sockets on linux

[Alan Bateman]

On 28/11/2020 02:42, Jamie Le Tual wrote:
> :
>
> It all seems to check out (at least on my machine,) the icmp packets 
> look good in wireshark, so the first thing I'm wondering is what the 
> catch must be, because this seems like a simple solution and I'm 
> wondering why it was never done like this.
>
The isReachable methods were added in Java 5 so they pre-date the kernel 
support for non-privileged ICMP. It seems a good idea to explore this 
now and work through any implications for using it.

-Alan.
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