Opened 4 years ago

Last modified 4 years ago

#4223 new defect

Clients not receiving v4 leases and high rate of ALLOC_ENGINE_V4_ALLOC_FAIL

Reported by: cathya Owned by:
Priority: medium Milestone: Outstanding Tasks
Component: dhcp4 Version: 0.9.2
Keywords: Cc:
CVSS Scoring: Parent Tickets:
Sensitive: no Defect Severity: Medium
Sub-Project: DHCP Feature Depending on Ticket:
Estimated Difficulty: 0 Add Hours to Ticket: 0
Total Hours: 0 Internal?: yes


From kea-users posting (held for moderation, due to attaching a large raw pcap to the posting):


Dear KEA Support !

We used kea 0.92 on 2500 Users. We saw a few errors with our end-users.

Their pc couldn’t renew ip.

We monitored with Wireshark and saw tons of DHCP Inform packages from
Clients to KEA DHCP. We didn’t know how to fix it.

We sent Wireshark data to you in attachment file.

Please help us to solve the issues.

Thanks and Best Regards,


The wireshark pcap is not useful because it only shows a high rate of inbound DHCP INFORM requests. What is more interesting is that at the same time as the problem is being seen, the server is repeatedly logging:

2015-11-20 10:13:12.061 WARN [kea-dhcp4.alloc-engine/1883] ALLOC_ENGINE_V4_ALLOC_FAIL [hwtype=1 b4:b5:2f:a9:23:80], cid=[01:b4:b5:2f:a9:23:80], tid=0xb03348d2: failed to allocate an IPv4 address after 239 attempt(s)


Change History (3)

comment:1 Changed 4 years ago by cathya

  • Internal? set

comment:2 Changed 4 years ago by tomek

  • Milestone changed from Kea-proposed to Outstanding Tasks

Moving all bugs to outstanding, we'll triage them with other defects.

comment:3 Changed 4 years ago by tomek

Cathy, any update on this? Do you think we could close it?

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