Pfsense Dhcp Log
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@johnpoz said in Pfsense Dhcp Log:
Well stop your client from sending out a request every freaking minute then ;)
As a client gets closer and closer to the lease expire - it will frantically attempt to renew..
Figure out why your clients are doing what they are doing, set your lease time to be longer, etc. But yeah the log is going to show what was asked for and what was offered, etc.
Maximum lease time 900 set to
Keeping logs according to this time should communicate with the client
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What is the device asking for it? Phones can do this is as they connect and disconnect from the wifi for example..
Again this is not a pfsense thing.. If something asks for something, it will be logged.. If your log is filling up or has too many entries for your liking - the stop the thing from asking so much.
Setting the IP static on the device would be one way to "fix" the perceived problem ;)
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SG-4860 24.11 | Lab VMs 2.8, 24.11 -
no connectivity issues with clients
Static IP dynamic IP clients communicate in the same 1 minute with pfsense
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@ahmetakkaya said in Pfsense Dhcp Log:
no connectivity issues with clients
I didn't ask that - look at the lease on the client, when was it last renewed.. If it asks for lease and gets an offer, it should renew its lease, etc. if its not - then it could continue to ask again for whatever reason only the client would know..
What part are you not getting this is not a pfsense thing... If you keep asking me, and I keep giving you an answer.. Why do you keep asking ;)
A dhcp reservation is not static on the device.. Still a lease - even if just the same IP every time, etc. And only for that client. If you don't want a client to ask for dhcp, because you think its asking too often. Then set the IP on the device you want it to use - and it will never ask for dhcp.. And your log will be empty ;)
What is this device that keeps asking? Something mobile on your wifi? A wired device?
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Setting the IP static on the device would be one way to "fix" the perceived problem ;)
What is the solution for static ip clients? fix ?
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Set your device with an IP on the device vs setting it to dhcp..
Dude if this is phone for example - this is what its going to do.. Iphone are horrible for this.. They go to sleep, and then want to check something - dhcp request, etc.
This was a huge issue many years ago with
https://www.net.princeton.edu/apple-ios/ios40-requests-DHCP-too-often.htmlSo again this is a client thing.. If you think a client is asking too much for dhcp - fix the client.. There is nothing you can do on pfsense to stop it from asking..
edit:
I notice this with my wife's iphone now and then.. Its running 14.3 - and loves to request dhcp all the time.. Its sitting on the nightstand charging at the moment.. It doesn't do this when she is using it.. But yeah does it when its just sitting there doing nothing ;)
If you don't like the static idea - turn off its wifi when your not using it ;)
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my clients are not mobile
2 access points (AP)
I also did static ip identification
the result has not changed :( -
@ahmetakkaya said in Pfsense Dhcp Log:
I also did static ip identification
No you didn't.. If you set a client for static - IT wouldn't ask for dhcp.. Because would not be enabled on the device... If it is - again nothing pfsense can do about that... Its a client ISSUE!!
When set a static IP on a device - it doesn't ask for dhcp... Not talking about setting reservation in the dhcp server to that mac always gets the same IP.. Talking about on the client setting the IP and mask and dns..
Example
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Here I went picked up my wifes phone.. Guess what as soon as I started using it..
Its stupid dhcp requests stopped..
It was asking every minute or so.. now its been 7 minutes without a request
This is a client thing - nothing pfsense can do to stop a client from asking.. If its asked - it will be logged..
An intelligent man is sometimes forced to be drunk to spend time with his fools
If you get confused: Listen to the Music Play
Please don't Chat/PM me for help, unless mod related
SG-4860 24.11 | Lab VMs 2.8, 24.11 -
I have a tp link a500 ap device
manual IP identification and result
this message every 1 minuteDec 26 19:30:13 dhcpd DHCPACK on 10.10.45.11 to f4:f2:6d:6a:b1:1c (AP500) via re1
Dec 26 19:30:13 dhcpd DHCPREQUEST for 10.10.45.11 (10.10.45.1) from f4:f2:6d:6a:b1:1c (AP500) via re1 -
@johnpoz Particularly with Apple devices asleep isn't asleep. They, without turning on the screen, wake up see if they need to do something. They often turn their radios on and off when doing this to save battery. You can see this as lots of very short connections.
This can be mitigated, sometimes, by turning on "Unscheduled Automatic Power Save Delivery" on your wireless access point. The access point will then pretend the device is still connected during these naps. In my environment, Unifi, this kinda works a little bit depending on how broken the current firmware is. Better wireless gear handles that situation way better.
Apple devices, at least some, will make DHCP requests every time they wake up, silently, from these naps. Nothing can be done about that. Like @johnpoz said, if the client asks, the server will respond...
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^ Exactly what I have been saying this whole time ;)
"Unscheduled Automatic Power Save Delivery"
Yup you can see a bunch of my wifi devices do this - have many a smart lightbulb/plug/etc..
Those little leaves mean Unscheduled Automatic Power Save Delivery is being used..
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One more thing that can be helpful. If your seeing these disconnect-connect events and the client is changing channels you can try to do one of two things.
Turn the power down on the 2.4GHz radio so they don't flip back and forth. Try this even if you are doing "Band Steering".
If you have more than one AP, disable the 2.4GHz radio on one or more APs. You will want to "survey" your place to determine how to best cover the space with the radios and set them up best. Becomes more involved and more important if you want to be able to roam seamlessly from AP to AP...
There is a bit science and a bigger bit of trial and error unless you have expensive gear to survey the RF environment.
I'm anxiously awaiting WiFi6E. New spectrum and higher speeds over shorter distances. Even thin walls will attenuate that 6GHz signal. Will help the problem of not letting go of a lousy signal and switching to a closer AP. Price to be paid is the need for more APs to cover a given space.
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I looked at his first post again.. And yup its an iphone doing this - just like my wifes does..
So if you don't like it - you could set it never go to sleep ever.. Not sure if that is an option to be honest? ;) But that would sure suck for its battery life.
Other thing is you could set its IP to static for this specific ssid
click the little i when your connected to the specific wifi network
That should stop it from doing any dhcp on this network..
Other option you could do is set your log to show more than 25 entries ;) You can set it up to 2000..
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@johnpoz That would get rid of the log entries. I guess you could also ignore that log unless you are working through a specific issue.
99% sure that you have no control over the power settings on an iPhone.
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Well his whole concern is the log.. I agree with you that wouldn't have effect from the device moving between AP or connecting disconnecting from the wifi.. But it would remove dhcp being done - and fix up his logging issue ;)
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@johnpoz Agree 100%.
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I could see this being problematic if you had lots of iphones doing this ;)
I can easy tell from the logs when the phones are "sleeping" ;) heheheh
With such a low number of entries being shown (his 25 setting) that would fill up quick and that would be all you would see.. I hope he doesn't think seeing the number entries shown keeps the log size small?
That really has nothing to do with the actual size.. But you can adjust that here
https://docs.netgate.com/pfsense/en/latest/monitoring/logs/size.html -
I need to keep my logs for 2 years
pfsense client messages log record size increasing
need a more rational solution
the client is not a mobile device, there is acces point Ap and continuous pfsense dhcp communication
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@ahmetakkaya said in Pfsense Dhcp Log:
I need to keep my logs for 2 years
pfsense client messages log record size increasing
need a more rational solution
Log to an external server
Build a litle linux server with a large disk (or raid) , and stop worrying. With logrotate the logs would even be compressed.
1TB or 4TB disks are cheap
