Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
10.2.4, 11.2.1, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4
Fixed In:
12.0.0, 11.6.0 HF5, 11.5.4, 11.4.1 HF10
Opened: Apr 10, 2015 Severity: 3-Major
ICMP unreachable errors do not always reset FastL4 connection
Behavior mismatch between clientside and serverside connections when using FastL4 proxy.
ICMP unreachable error is received by serverside of FastL4 proxy ICMP unreachable error is the result of a non-SYN packet
None
ICMP unreachable errors received on serverside handler of FastL4 proxy will generate connection reset.