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I am needing a NTP Server in "Windows Server" in such a way to use the NTP in my infrastructure with cisco routers with authentication supports.
I'm testing with "NTP 4.X". The application works without authentication but I can not run with authentication required.
Someone has already gone through this need?
Help me please.
Meinberg NTP 4.X is the software I am using.
Its documentation is not very understandable to me.
I can't make it work correctly with authentication.
I set up in my "Cisco router" with the command "ntp authenticate". The "NTP server" continues to operate but by entering the command: "show ntp asso detail" don't shows me the message "authenticated".
Do you have a sample configuration? Could you guide me in my setup, please?
The "Windows Server" uses the "SNTP / NTP" and does not work with Cisco IOS NTP.
Ok then. It's either you let the routers go out to the net for an authoritative NTP source or you can purchase a "true" NTP server.
When I mean a "true" NTP server, it's not the kind which has to go out to the internet and to get an authoritative source. I mean the ones with built-in GPS receivers.
You don't need to install the NTP server inside the DC. Find a cabinet that's closest to the ceiling and it'll do fine. The servers normally come with a magnetic antenna.
We didn't planning an acquisition of a GPS for NTP.
Just for that I'm looking for the solution through the Meinberg NTP.
It is not necessary for our infrastructure a NTP server so specialized.
Only one that allows us to maintain uniform time in the network of PCs and routers, that provides NTP authentication.
Hello, I was looking for a solution between many devices on my networks, finally I find a option, use a border router like a NTP Proxy.
I try many setting between MS Windows like a NTP Server over other devices no PCs, in my case don't work, but I try with a Router like NTP Server, perfect work.
Other good practice is send params over DHCP sending to the clients option 42.
Let the commands and screens:
NTP Server ~ Client on the Router:
ntp clock-period 17179973
ntp server 22.214.171.124 source FastEthernet1
ntp server 126.96.36.199 source FastEthernet0
Config NTP on DHCP Server:
ip dhcp pool LAN
network 172.16.1.0 255.255.255.192
update dns both
option 42 ip 172.16.1.1
lease 0 0 5
Analyzing DHCP behavior with Wireshark:
Set on MS Windows:
Depend of MS Windows behaviour, Windows Domain (atomically) Vs Workgroup (set in MS Clients IP or Router FQDN Master NTP)
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