Bug ID 1682061: DNS over HTTPS queries may fail intermittently when dohprotocol is set to udp

Last Modified: Nov 29, 2025

Affected Product(s):
BIG_IP_NEXT(CNF) CNF(all modules)

Fixed In:
1.4.0

Opened: Sep 29, 2024

Severity: 2-Critical

Symptoms

When dohprotocol is set to UDP, DNS over HTTPS queries may fail intermittently.

Impact

DNS queries may be dropped

Conditions

Dohprotocol is set to UDP

Workaround

The mitigation is to switch dohprotocol to TCP or use the SRIOV driver

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips