[ale] OT: question on router

[Alex Carver]

On 2014-06-24 20:35, Scott Castaline wrote:
> I have an ASUS router RT-AC66U set up in wireless router mode which is
> the default. This connected via the WAN port to the Comcast/Xfinity
> Modem,Router,AP through the first LAN port. Would this configuration
> cause NTP not to work on the ASUS router? NTP seems to be working fine
> on my Linux box connected to the first LAN port on the ASUS. I found a
> thread on SmallNetBuilder forum that seems to indicate that a setup
> similar to this won't work, but the OP's description seemed a bit
> sketchy, so I'm not sure if it is the same thing that I'm experiencing.
> 
> Scott C
> 
What are you experiencing?

Most of the routers don't have battery backed RTCs so they have to have
the clock set prior to ntpd starting up.  I run ntpd on my Linksys WRT
operating as a router attached to my AT&T modem and it works fine if and
only if ntpdate/ntpclient (distro dependent) is used prior to ntpd
starting up.  If I start ntpd without using ntpdate/ntpclient, then ntpd
tries to measure the initial clock offset, sees that it's absurd (some
many hundreds of thousands of seconds), and aborts.

My init.d script is modified to call ntpclient first, sleep and run ntpd
which will remain calm after that.