[USG FLEX H Series] - NTP Server

Maverick87 · November 10

Hello everyone,
Is it possible to use the USG Flex H as an NTP server?

This way, I wouldn't need to expose my devices to the internet to synchronize their clocks, but the current time/timezone information would come directly from the firewall, as the only true time source.

Thank you,

PeterUK · November 10

Currently does not look like you can best you can do is run a box with OS that can if needed you might need this done on USG.

edit running

vrf main ntp maxdistance 16

commit


copy running startup

Maverick87 · November 10

https://community.zyxel.com/en/discussion/comment/81440#Comment_81440

OK, so you suggest to use an external OS (Raspberry/Linux/Windows) to use as NTP Server?

PeterUK · November 10

Yes I just use windows

Zyxel_Tina · November 11

Hi @Maverick87,

The USG FLEX H series can function as an NTP server for your internal devices. You can configure this via the CLI with the following commands:

>edit running

>running config# / vrf main ntp server-subnet <priority> {allow| deny}{CIDR subnet| all}

>running config# commit

>running config# copy running startup

>running config# exit

Replace CIDR subnet with the specific subnet you want to allow to synchronize with the firewall. You can also use all to permit all subnets to synchronize with this device.

For example, / vrf main ntp server-subnet 0 allow 192.168.1.0/24 or / vrf main ntp server-subnet 1 allow all

[USG FLEX H Series] - NTP Server

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