Bug ID 453489: userauth_hostbased mismatch: warnings from VIPRION for localhost or slotN

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP All(all modules)

Known Affected Versions:
11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7

Fixed In:
11.6.0, 11.5.3, 11.5.1 HF8

Opened: Mar 21, 2014
Severity: 3-Major
Related Article:


Error messages indicating userauth_hostbased mismatch are posted.


The sshd userauth_hostbased mismatch messages are innocuous only if they appear for the client sending one of the following: localhost, localhost.localdomain, slot1, slot2, slot3, slot4, slot5, slot6, slot7, or slot8. The system might post warning messages from sshd similar to the following: userauth_hostbased mismatch: client sends slot1, but the system resolves to


VIPRION-based system or VIPRION-hosted vCMP guest. This also occurs on a single slot.



Fix Information

The system no longer posts extraneous warning messages caused by SSH connections from peers on the subnet.

Behavior Change