[RndTbl] latest kernel rate limits icmp to different hosts? (** nmap shows bug! **)

[Trevor Cordes]

No solution yet, but I was able to reproduce the bug with nmap, yay!!!

#nmap -PE 192.168.101.0/24
Starting Nmap 7.12 ( https://nmap.org ) at 2016-12-01 02:50 CST
sendto in send_ip_packet_sd: sendto(5, packet, 44, 0, 192.168.101.102,16) => Operation not permitted
Offending packet: TCP 192.168.101.1:57520 > 192.168.101.102:21 S ttl=51 id=5430 iplen=44 seq=879361804 win=1024 <mss 1460>

Looks like -sP does more than just ping and it's not fast enough to
trigger the bug.  -PE is what I need to reproduce the conditions of my
script.