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Question

DHCP 5.4.4 HA

Forum|Forum|9 years ago
May 25, 2017
2 replies
22445 views

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!

5.4

SuperUser

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?

New Member

There is an bug which will be fixed in FortiOS 5.4.5.

New Member

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 ?

Explorer

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]

New Member

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

New Member

5.4.5 is out but I don't see bug id 394729 in the resolved issues.

I will give it a try anyways when I visite the customer next week.