Cisco Cius Overview page 19

Overview of Cisco Cius
and also security in the system. The following table provides information about changes to call security levels
when Barge is used.
Table 10: Call Security Interactions When Barge Is Used
Initiator device
security level
Nonsecure
Secure
The following table provides information about changes to conference security levels depending on the initiator
device security level, the security levels of participants, and the availability of secure conference bridges.
Table 11: Security Restrictions With Conference Calls
Initiator device
security level
Nonsecure
Secure
Secure
Supporting 802.1X Authentication on Cisco Cius
These sections provide information about 802.1X support on Cisco Cius:
•
•
•
Overview
Cisco Cius and Cisco Catalyst switches traditionally use Cisco Discovery Protocol (CDP) to identify each
other and determine parameters such as VLAN allocation and inline power requirements. Cisco Cius also
uses CDP; however, CDP does not identify any locally attached PCs; therefore, an EAPOL pass-through
mechanism is used, whereby a PC that is attached locally to Cisco Cius may pass EAPOL messages to the
OL-26938-01
Feature used
Barge
Barge
Feature used
Conference
Conference
Conference
Overview, on page 19
Required Network Components, on page 20
Requirements and Recommendations, on page 20
Supporting 802.1X Authentication on Cisco Cius
Call security level Results of action
Encrypted call Call barged and identified as nonsecure
call
Encrypted call Call barged and identified as secure call
Security level of Results of action
participants
Secure Nonsecure conference bridge
Nonsecure conference
At least one member Secure conference bridge
is nonsecure
Nonsecure conference
Secure Secure conference bridge
Secure encrypted level conference
Cisco Cius Administration Guide, Release 9.2(3)
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