Public bug reported:

Binary package hint: ngrep

Package: ngrep 1.45.ds2-9
Release: Ubuntu lucid (development branch) 10.04

ngrep discards ipv6 tcp, udp and icmp6 packets as empty.

Bug occurs in ubuntu maintainers package as well as vanilla ngrep-1.45
(http://ngrep.sourceforge.net) compiled with the following options:

% ./configure --enable-ipv6 --enable-pcre --disable-pcap-restart
% make
% sudo ./ngrep -d eth0

<now i'm generating some ipv6 traffic from other terminal:>
% nc -6 somelocalipv6node 22

ngrep output:
##################

expected output:
T fec0::1337:22 -> fec0::1138:60300 [AP]
  SSH-2.0-OpenSSH_5.1p1 Debian-6ubuntu2..    

ipv4 packets are dumped correctly but ipv6 packets (tcp, udp and icmp6)
are discarded (hash symbols represent empty packets)

** Affects: ngrep (Ubuntu)
     Importance: Undecided
         Status: New

-- 
ngrep ipv6 support seems broken
https://bugs.launchpad.net/bugs/567286
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