Linux network behavior wierdness

[Paul Lussier]

Paul Lussier <p.lussier at comcast.net> writes:

>> Watch out for /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts.  The
>> default was changed between 2.6.13 and 2.6.14 to ignore by default.
>
> Ooh, I didn't know that, thanks!

Fascinating, so how does this work?

 $ ssh farm-519 ping -b 10.95.255.255 -c 1
 64 bytes from 10.95.34.112: icmp_seq=1 ttl=64 time=0.074 ms
 1 packets transmitted, 1 received, 0% packet loss, time 0ms

 $ ssh farm-519 cat /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
 1

-- 
Seeya,
Paul