dhcpv6 server missing client's hostname(fqdn)

YC ycflash at gmail.com
Fri Jul 22 23:07:45 UTC 2016

Unlike IPv4 dhcpd log messages, IPv6 dhcpd log messages come with no 
client hostname (OPTION 39).  After trying to use lookup_option() in 
dhcpv6.c like bellow:

oc = lookup_option(&dhcpv6_universe, packet->options, D6O_CLIENT_FQDN);

Tests shows it won't work.  Is there a way to lookup client hostname?


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