Bug ID 1578581: Cannot update configured IPv4 SNAT pool with IPv6 SNAT pool members

Last Modified: Nov 29, 2025

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

Fixed In:
1.3.1

Opened: Apr 12, 2024

Severity: 3-Major

Symptoms

If you configure an IPv4 SNAT pool and change it to an IPv6 pool by editing the CR, then kernel routes for the IPv6 SNAT pool are not created.

Impact

The IPv6 SNAT pool kernel routes are not created.

Conditions

Updating SNAT pool members from IPv4 to IPv6 in F5BigCneSnatpool CR.

Workaround

Delete the SNAT CR with IPv4 pool members and reapply the CR with IPv6 pool members.

Fix Information

When Snatpool CR is updated, f5ingress sends delete for whole Snatpool config, then sends create with updated Snatpool config.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips