Symptoms

In a few scenarios, the DNS relay proxy does not close when the machine tunnel goes down, and DNS queries still go through DNS proxy.

Impact

If a client that was using the machine tunnel disconnects and then reconnects, the client may be unable to do DNS lookups.

Conditions

-- Using the Machine tunnel feature

Workaround

Restart the DNS Relay Proxy.

Fix Information

None

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips