DHCP - No Free Leases (pf_2.4.3-release-p1)
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@msf2000 No relay option, just letting the traffic pass...:-)
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Errr...pretty damn dumb....but I just realized that the 3Com was badly configured...LoL
That's the problem of trusting someone else...:-)
You should always check yourself!!!
3Com was configured as a /21 when the network is a /19 and the interface as a dhcp client of the network itself.
Besides all this, the interface IP on another interface, was overlapping my subnet...
I'll wait and see if this was the problem...but I'm starting the clients from 3Com arriving with the proper device name and not the 3Com device name.
I still see some abandoned leases, but it set the timeout for 300s now, to check if that does it...
Really hope that "this was it" coz this was making me go crazy! :-) -
@ihugof
Glad you found it! Improper subnet configuration would definitely do it. Ideally, the 3COM controller would be a static IP, such as 10.0.192.2/19. And of course other interfaces properly set too. :) -
@msf2000 Yeah...but you know how it is...If it was working with all other DHCPs, and I don't even know how, why only pfSense dhcp would have trouble with it...?!
It has been working on top of a cisco router dhcp for years and no issues...
Currently I've around 3000+ active leases and not a single abandoned lease...so everything seems to be looking good! :)
I'll wait until next week, just to be sure...:p
Thank you ALL for your help! :)
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@ihugof said in DHCP - No Free Leases (pf_2.4.3-release-p1):
@msf2000 Yeah...but you know how it is...If it was working with all other DHCPs, and I don't even know how, why only pfSense dhcp would have trouble with it...?!
Just for the record, it's not pfSense DHCP. It's ISC DHCPD from FreeBSD. pfSense just provides a UI, creates the config file and starts the daemon.
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@grimson I know what you're saying...but before this I tried setting up the dhcp server on Debian, AIX, Solaris...and none gave problems...hence I kept saying "pfSense dhcp"...just that...:-)
But you're right! Thx!
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@ihugof said in DHCP - No Free Leases (pf_2.4.3-release-p1):
Debian, AIX, Solaris...and none gave problems..
And what were they running for DHCPd? Was it ISC dhcpd? What version - maybe they were the ones broken since it seems you for sure had some mask issues and problems with the setup.. Seems like they might of been masking the underlying problem?
While with pfsense and ISC dhcpd the problem presented itself with symptoms
Might be good idea to try and duplicate the setup and try and figure out why you where not seeing the issue with the other dhcpds
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@ihugof said in DHCP - No Free Leases (pf_2.4.3-release-p1):
Abandoned leases happen when dhcp-server sends ICMP ECHO to client, before assigning a lease
I've never seen that happen and I have looked for it. What I have seen is either gratuitous ARP or duplicate address detection (DAD), both of which are performed by the client. As I understand it, an abandoned lease is one that had previously been assigned, but no longer used resulting in the lease expiring. The default lease time with pfSense is 7200 seconds or 2 hours, whichever comes first.
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Problem is solved! :-)
I only get now "expired leases" and not "abandoned leases", so everything is working as it should!
Thank you all for the time and help! -
@ihugof I had this problem before and since my network lease isn't huge as yours, manual (deleting expired leases) manipulation on dhcp service was my workaround.