Allowing NTP on all interfaces

Unanswered Question
Jul 29th, 2009
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Hi guys,

I have configured my 1841 router to be a Master NTP server.

This router has 5 VLANS and hosts coming from all those VLANs can successfully act as NTP clients to get the proper time from the 1841. However, on one of those VLANs, I have an access list applied and hosts on this VLAN can't talk to the NTP master (the 1841)

What do I need to allow on the ACL to allow hosts on this VLAN to use the 1841 as their master NTP?

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Collin Clark Wed, 07/29/2009 - 11:03
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NTP runs on UDP 123 so you'll have to open up that port.

Hope it helps.


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