NTP Server

[misses esterhouse]

I know this has probably been asked before, but I wanted to know if it would be possible to run a NTP server for local network/subnet access only using Merlin's firmware build? I have a few linux machines that I am able to modify the ntp.conf file for listening for NTP broadcasts locally only and would like them to be able to sync with my router.

 

[Fitz Mutch]

I wanted to know if it would be possible to run a NTP server for local network/subnet access only using Merlin's firmware build?

Asuswrt does not provide an NTP server. And Merlin is not going to doit because it's not a goal of his project. You must install Entware-ng, or compile it yourself. If you know what you're doing, I can post the compile instructions.

Also, my brother Jon has a mod of the Asuswrt-Merlin firmware with the NTP server compiled in. If you don't want to install his firmware, open it with 7-Zip and copy the programs from /native/bin to your /jffs/bin folder.
https://github.com/blackfuel/asuswrt-merlin/releases

 

[sfx2000]

Asuswrt does not provide an NTP server. And Merlin is not going to doit because it's not a goal of his project. You must install Entware-ng, or compile it yourself. If you know what you're doing, I can post the compile instructions.

RMerlin had a good reason not to include it - might have to search thru the sub-forums, but he was pretty clear as to why it wasn't a good idea to include in the AsusWRT-RMerlin directly.

An alternative might be hosting NTP server on something like a RPi - and this would tie nicely into the GPS thread here on SNB...

And the Model B (not RPi2/RPi3) can be powered easily enough from one of the USB ports on the router, and as an adjunct machine, can support a lot of tasks/processes that would normally be handled by Entware... second hand Model B's are going cheap these days (or find a PiZero even, it'll work just as well)

One can always build OpenWRT for the Pi/Pi2/Pi3, and pull in Entware there, or just run Raspbian and have even more support for 3rd party packages...

 

[kvic]

I know this has probably been asked before, but I wanted to know if it would be possible to run a NTP server for local network/subnet access only using Merlin's firmware build? I have a few linux machines that I am able to modify the ntp.conf file for listening for NTP broadcasts locally only and would like them to be able to sync with my router.

http://forums.smallnetbuilder.com/threads/ntp-daemon-for-asuswrt-merlin.28041/

Works great on ARM. GUI part is optional if you see how the package is working.

Some users reported having issue with MIPS binary (which I won't have time to look into it)

 

[joegreat]

http://forums.smallnetbuilder.com/threads/ntp-daemon-for-asuswrt-merlin.28041/

Works great on ARM. GUI part is optional if you see how the package is working.

I confirm: Runs great on my main router (ARM) and all local devices use it as their time server!

 

[sfx2000]

RMerlin had a good reason not to include it - might have to search thru the sub-forums, but he was pretty clear as to why it wasn't a good idea to include in the AsusWRT-RMerlin directly.

@RMerlin - I recall the objections and discovery in the build, but I can't find the thread - but it was a darn good reason, and there was a fair amount of discussion about it...

 

[RMerlin]

@RMerlin - I recall the objections and discovery in the build, but I can't find the thread - but it was a darn good reason, and there was a fair amount of discussion about it...

I don't recall any particular reasons, but if asked today, I would say no because it doesn't belong in a router, and also because the router itself needs to sync with a remote ntpd as it has no battery-backed clock, so your router's ntpd is not guaranteed to be accurate.

 

[john9527]

I don't recall any particular reasons, but if asked today, I would say no because it doesn't belong in a router, and also because the router itself needs to sync with a remote ntpd as it has no battery-backed clock, so your router's ntpd is not guaranteed to be accurate.

Differences of opinion....what makes the world go 'round I thought that this actually made sense to include in the router, so I enabled the Busybox SNTP server in my fork. I use the watchdog to start it and it will only will start once the router time is set. Been working great for me for several months now.

 

[Nullity]

Do none of the AsusWRT devices have an RTC that will keep consistent time after a reboot?

 

[buddyp]

I was using the entware ntpd on my mips router before I retired it and it worked fine.

 

[sfx2000]

Do none of the AsusWRT devices have an RTC that will keep consistent time after a reboot?

If I recall - they do need to check in to get real-time...

 

[RMerlin]

Do none of the AsusWRT devices have an RTC that will keep consistent time after a reboot?

No.

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