Bug ID 1436221: Modify b.root-servers.net IPv4 address to 170.247.170.2 and IPv6 address to 2801:1b8:10::b

Last Modified: Dec 31, 2024

Affected Product(s):
BIG-IP All(all modules)

Fixed In:
17.1.2

Opened: Dec 12, 2023

Severity: 4-Minor

Symptoms

USC/ISI, which operates b.root-servers.net, renumbered the IPv4 and IPv6 addresses on November 27, 2023. The current IPv4 address is 170.247.170.2, and the current IPv6 address is 2801:1b8:10::b. USC/ISI continues to support the root service over the current IPv4 and IPv6 addresses until November 27, 2024,(one year). This enables a stable transition while new root hints files are distributed in software and operating system packages.

Impact

As USC/ISI supports the current IPv4 and IPv6 addresses for a minimum of one year (November 27, 2024), there is minimal impact. A single timeout for pending TLD queries can occur when accessing an old IP address using round-robin. Normally, the hint's TTL which is more than a month can cause a timeout when the old IP stops responding.

Conditions

Several profiles include the b.root-servers.net

Workaround

None

Fix Information

The IPv4 and IPv6 address for b.root-servers.net has been renumbered to 170.247.170.2 and 2801:1b8:10::b

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips