Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP ASM
Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6
Fixed In:
13.0.0
Opened: Oct 30, 2016 Severity: 3-Major
bd crashes, and the bd error log contains the following message: cant add ip entry - second bank
Failover, traffic disruption
Specific rare scenario involving multiple in-progress web scraping or brute force attacks.
Use the internal parameter external_entity_hash_size . The default is 100000. Increasing the value (200000) might allow the system to last longer, but the system still might get to the error state after some time. To configure external_entity_hash_size, run the following commands: /usr/share/ts/bin/add_del_internal add external_entity_hash_size 20000 tmsh restart sys service asm
Fixed a rarely occurring crash scenario.