Notification if DHCP-pool gets depleted? (pf 2.1.5)
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Hi!
Got a case where I'm not really sure if the address pool is big enough.
So the questions:
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Can I get a Notification (the built in pf-function) when the pool of addresses is depleted?
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What should I look for in the DHCP-log?
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Any monitoring I could use to get a better picture of the DHCP leases?
Brgs,
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There isn't a way to be notified currently, but what you're looking for in the DHCP log would be something along the lines of "no free leases"
Similar to:
dhcpd: DHCPDISCOVER from xx:xx:xx:xx:xx:xx via em0: network y.y.y.0/24: no free leases
There aren't any monitoring options for pool utilization currently.
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I'm noob here it feels like. Can I see further back in dhcpd-log? Can find the log file.
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The webGUI log display show however many lines you have set it to display.
The whole log is in /var/log/dhcpd.log
From command line:clog /var/log/dhcpd.log
will spew out all the content.
You can "grep" for what you like. -
Thank you!
Of course in /var/log … ::) But no "no free leases" found in the file.Though, I could only see like 2 days back, the logs are trunked at 512KB it looks like. Anyway possible to increase this? Googled a bit on this but didn't find what, where or how to do it.
Next step is to figure out a way to trigger some kind of alert if it runs out of addresses.
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If you are on 2.2, the size of the log file may be increased on the Settings tab under Status > System Logs.
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Thank you sir! A great incentive to upgrade to 2.2.
I have to convince the customer of that this is a good thing to do now. Currently running 2.1.5 with a couple of VLAN, site-to-site IPSEC and OpenVPN connections.
Upgrade and at the same time take them from a /24-subnet to a /16. Internal address space is for the moment 10.200.100.0/24 and i don't see anything that's in the way for that to become /16.Brgs,