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DHCP 5.4.4 HA
HI,
I have a cluster of 2 X 100D running 5.4.4. DHCP stop giving IP to PC last week, it did not look like pool was exausted. Did not find anything in the system log. I ended up rebooting the master and it did solve the problem. Today exactly 7 days after problem is showing up again. Rebooting the master solved the problem... i'm afraid till next week. Look like the DHCP stop working and last week I noticed wifi client where affected as well ( different interface but FGT also DHCP server ).
Any idea ?
Thanks!
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5.4
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How many did you see in "exe dhcp lease-list" against the number of available IPs? Was there a wide margin?
Have you tried "exe dhcp lease-clear" instead of rebooting it, then did it solve for one week?
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There is an bug which will be fixed in FortiOS 5.4.5.
NSE 4/5/7
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Looking at the know bugs in 5.4.4 I found:
377192: DHCP request after lease expires is sent with former unicast IP instead of 0.0.0.0 as source.
Not sure of the implication... My lease is 172800 ( 48 hours ) so I would be expecting to have the issue after 48 hours not 7 days ?
Bommi : is that what you are refering to or you know something else ?
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One customer had an problem with dhcp, so I opened a ticket where the support send me this:
"There is a bug open for this issue, where the dhcpd process stops working, with no entries in the crashlog - the bug number is 394729"
NSE 4/5/7
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Based on the description of the bug, the particular bug appears to be about DHCP client, not server.
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Bommi: is there any more conditions for the 394729 to occur? Like any particular models? We have a bunch of 5.4.4 with various models but so far we haven't experienced it yet.
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I know only one Fortigate 1000D Cluster with FortiOS 5.4.3 where this happened once.
NSE 4/5/7
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Hi Teche,
are there any DHCPACK messages in the system log after 7 days before you restart?
Relay or Server Mode?
Regards
Edit: oh i didnt see the other posts[&o]
sudo apt-get-rekt
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I currently have the same probleme with 5x of my 100D on v5.4.4,build1117 (GA)
-Dhcp service stop working correctly -Then forti AP wifi Stop working correctly I hope it get fixed on next update