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valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Fri Oct 08, 2021 8:53 am
by Sahafi2001
For the past few months I've been getting messages in logs like this
APV101 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
This is a picture of the DHCP settings
System version v6.47.10 [long-term]
firmware version 6.47.10
I use Nanostation M2 devices to broadcast the Internet wirelessly
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Sat Oct 09, 2021 8:31 pm
by Zacharias
I 've seen this error in many networks, i won't consider it as a problem if it doesn't appear often or if it is not related to a very specific client...
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Mon Oct 11, 2021 9:56 pm
by Sahafi2001
I 've seen this error in many networks, i won't consider it as a problem if it doesn't appear often or if it is not related to a very specific client...
So what's the solution?
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Tue Oct 12, 2021 12:17 am
by Zacharias
A client may not accept a lease offered from a DHCP server for various reasons ...
So, are you getting this error all the time?
Is it related to a specific client ?
You just ask for a solution without giving any information about the network at all ( topology, configuration setup etc. ... )
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Tue Oct 12, 2021 9:34 am
by nichky
why you have ticked always broadcast?
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Fri Oct 15, 2021 8:40 am
by Sahafi2001
A client may not accept a lease offered from a DHCP server for various reasons ...
So, are you getting this error all the time?
Is it related to a specific client ?
You just ask for a solution without giving any information about the network at all ( topology, configuration setup etc. ... )
Yes, most of the time with several devices.. I use the Mikrotik router to organize wireless Internet broadcasts through monthly subscriptions
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Fri Oct 15, 2021 8:42 am
by Sahafi2001
why you have ticked always broadcast?
Do I stop it and how do I prevent hackers from knowing the Mac of the devices in the network
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Fri Oct 15, 2021 2:00 pm
by nichky
Always Broadcast respond to requests with a broadcast instead of unicast.
This can be helpful to diagnostics, and dhcp snooping. Though I've found that many devices don't. accept broadcast responses, AND it causes more "noise" on the LAN.
- IntrusDave -
is that what you after?
Re: valn1 offering lease 172.11.x.xx for 38:30:F9:xx:xx:xx without success
Posted: Sat Oct 16, 2021 2:31 pm
by Sahafi2001
Always Broadcast respond to requests with a broadcast instead of unicast.
This can be helpful to diagnostics, and dhcp snooping. Though I've found that many devices don't. accept broadcast responses, AND it causes more "noise" on the LAN.
- IntrusDave -
is that what you after?
yes