[c-nsp] ntp configuration

[Chris Marget]

On Mon, Nov 18, 2013 at 2:31 AM, Kirill Bychkov <kirill.bychkov at gmail.com>wrote:

>
> ntp peer <IP ADDRESS>
> Sometimes, after turnoff power, this line disappears from configuration.
>

I've seen similar behavior on IOS 12.x when the router is configured with
'ntp server <name>'

The problem there is that if DNS fails (because, say, we're waiting for
DHCP to tell us about a DNS server), the line is skipped at boot time.

startup-config still retails the configuration, but it does not appear in
running-config. A 'wr mem' at this point wipes it out from the startup
configuration as well.

IOS 15.x tries to resolve DNS names repeatedly, so it's no problem there.

CSCtw45592 describes the problem.

Perhaps it is related? I've not explored the implications of configuring
'ntp peer' when 'ntp server' is missing.

/chris