From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Dec 14 2004 - 18:35:53 GMT-3
Hey Chris,
Do you know anything about ntp control queries?
There's a command, ntp access-group query-only <acl #>, which only allows
these control queries.
I have no idea why anyone would want to configure ntp and then only allow
control queries. Doesn't make any sense to me.
Do you have any ideas about this?
Tim
----- Original Message -----
From: "Lord, Chris" <chris.lord@lorien.co.uk>
To: "ccie2be" <ccie2be@nyc.rr.com>; <ccielab@groupstudy.com>
Sent: Tuesday, December 14, 2004 3:41 PM
Subject: RE: NTP Broadcast
> Hi Tim,
>
> Yes, I tried it and things work ok either way in the lab, which is why I
> was intrigued by the book's recommendations. It just made me wonder
> whether there was some subtle reason why ntp broadcast was better over
> NBMA than using a server/client configuration.
>
> Cheers,
>
> Chris
>
> -----Original Message-----
> From: ccie2be [mailto:ccie2be@nyc.rr.com]
> Sent: 14 December 2004 17:29
> To: Lord, Chris; ccielab@groupstudy.com
> Subject: Re: NTP Broadcast
>
> Chris,
>
> I doubt that that is completely true.
>
> I haven't tested this, but I think that if the hub router is configured
> to
> broadcast ntp to the spokes and the spokes are configured to listen for
> ntp
> broadcasts, all will be fine. But, I think ntp will also work if the
> ntp
> clients are configured with the ntp server ip address and the ntp server
> is
> configured with ntp master regardless of which router is the hub and
> which
> routers are spokes in the f/r network.
>
> When I get a chance I lab this up and see what happens.
>
> HTH, Tim
> ----- Original Message -----
> From: "Lord, Chris" <chris.lord@lorien.co.uk>
> To: <ccielab@groupstudy.com>
> Sent: Wednesday, November 10, 2004 10:22 AM
> Subject: NTP Broadcast
>
>
> > Hi Group,
> >
> > I am trying to clarify whether there are any special requirements for
> configuring ntp over a frame relay nbma cloud and was wondering if
> anyone
> could help. I have always configured the peering or server relationships
> manually and it seems to work ok. However, in Benjamin's CCIE Security
> Guide
> it says that "Rx must be must be configured to send NTP traffic over the
> frame relay cloud with the command ntp broadcast". Both static and
> broadcast
> methods seem to work ok in the lab. Does anyone have a view on this.
> >
> > TIA,
> >
> > Chris Lord
> > #13925
> >
> >
> >
> >
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