[FS#1337] odhcp6c spamming system log

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Huan Truong (htruong) 

Attached to Project - OpenWrt/LEDE Project
Summary - odhcp6c spamming system log
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Bug:
 - NETGEAR R6100
 - OpenWrt SNAPSHOT r6015-30d3435 / LuCI Master (git-18.036.56624-90369e7)
 - /etc/config/network is as follow:

config interface 'wan6'
        option ifname 'eth0'
        option proto 'dhcpv6'
   

  - Observed the log is filled with:

Fri Feb  9 07:25:30 2018 daemon.notice netifd: Interface 'wan6' is now down
Fri Feb  9 07:25:30 2018 daemon.notice netifd: Interface 'wan6' is setting up now
Fri Feb  9 07:25:31 2018 daemon.notice netifd: wan6 (15006): Usage: odhcp6c [options] 
Fri Feb  9 07:25:31 2018 daemon.notice netifd: wan6 (15006):
Fri Feb  9 07:25:31 2018 daemon.notice netifd: wan6 (15006): Feature options:
Fri Feb  9 07:25:31 2018 daemon.notice netifd: wan6 (15006):    -S        Wait at least  sec for a DHCP-server (0)...


That filled up the syslog and makes the system load extremely high.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1337