Bug ID 685340: On an appliance IPv6 management IP config is not correctly preserved through an .iso install

Last Modified: Jul 12, 2023

Affected Product(s):
BIG-IP LTM(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, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1

Opened: Sep 25, 2017

Severity: 4-Minor

Symptoms

If an IPv6 management-ip is configured when an .iso is live-installed, the configuration in the new image will have an incorrect netmask for the IPv6 management IP. Note: This is true only for IPv6 management-IP configurations; IPv4 management-ip configurations work as expected.

Impact

IPv6 management IP config is not correctly preserved through an .iso install. Configuration load fails.

Conditions

-- On any appliance (i.e., not blades in a cluster). -- IPv6 management IP only.

Workaround

Edit the /config/bigip_base.conf file and remove the extraneous netmask, and then load the config by running the command: tmsh load sys config. To do so, follow these steps: 1. Edit /config/bigip_base.conf: -- Change this: sys management-ip <IPv6_IP_address>/64/ffff:ffff:ffff:ffff::{} -- To this: sys management-ip <IPv6_IP_address>/64{} 2. If an IPv6 default-inet6 route is configured, that configuration also must be edited in /config/bigip_base.conf: -- Change this: sys management-route default { gateway <V6_gateway_IP_address> network default } -- To this: sys management-route default-inet6 { gateway <V6_gateway_IP_address> network default-inet6 } 3. After making and saving the changes, run the following command: tmsh load sys config

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips