Bug ID 719396: DHCP Client on BIG-IP sends host-name 'localhost' in DISCOVER packet after first boot.

Last Modified: May 07, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP DNS, VE(all modules)

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 14.0.0

Fixed In:
14.1.0, 14.0.0.1, 13.1.1

Opened: May 10, 2018
Severity: 3-Major
Related AskF5 Article:
K34339214

Symptoms

DHCP Client on the BIG-IP system sends host-name 'localhost' in DISCOVER packet after first boot. Note: The problem goes away after the first boot.

Impact

This can affect the lease given out by the DHCP server in the given network if the DHCP server is configured in such a way as to dynamically update the DNS based on the host-name option in the lease.

Conditions

-- DHCP is enabled (this is the default on BIG-IP systems). -- Initial startup.

Workaround

-- Empty the /var/lib/dhclient/dhclient.leases file. -- Run the following command: bigstart restart dhclient

Fix Information

DHCP Client on the BIG-IP system no longer sends 'localhost' as the host-name in DISCOVER packet after first boot.

Behavior Change