Cisco Cisco Expressway
Expressway-C
Expressway-E
Peer 1 address
Enter the FQDN of the
Expressway-E.
Expressway-E.
Note that if you use an IP
address (not recommended),
that address must be present
in the Expressway-E server
certificate.
address (not recommended),
that address must be present
in the Expressway-E server
certificate.
Not applicable
Peer 2...6 address
Enter the FQDNs of additional
peers if it is a cluster of
Expressway-Es.
peers if it is a cluster of
Expressway-Es.
Not applicable
4. Click Create zone.
Server certificate requirements for Unified Communications
The Expressway certificate signing request (CSR) tool prompts for and incorporates the relevant subject
alternate name (SAN) entries as appropriate for the Unified Communications features that are supported on
that Expressway.
alternate name (SAN) entries as appropriate for the Unified Communications features that are supported on
that Expressway.
The following table shows which CSR alternative name elements apply to which Unified Communications
features:
features:
CSR SAN element
Mobile and remote access
Jabber Guest
XMPP federation
Unified CM registrations domains
ü
(Expressway-E only)
X
X
XMPP federation domains
X
X
ü
(Expressway-E only)
IM and Presence chat node aliases
(federated group chat)
(federated group chat)
X
X
ü
Unified CM phone security profile names
ü
(Expressway-C only)
X
X
Note:
n
A new Expressway-C certificate may need to be produced for the Expressway-C if chat node aliases are
added or renamed, such as when an IM and Presence node is added or renamed, or if new TLS phone
security profiles are added.
added or renamed, such as when an IM and Presence node is added or renamed, or if new TLS phone
security profiles are added.
n
A new Expressway-E certificate must be produced if new chat node aliases are added to the system, or if
the Unified CM or XMPP federation domains are modified.
the Unified CM or XMPP federation domains are modified.
n
You must restart the Expressway for any new uploaded server certificate to take effect.
More details about the individual feature requirements per Expressway-C / Expressway-E are described
below.
below.
Expressway-C server certificate requirements
The Expressway-C server certificate needs to include the following elements in its list of subject alternate
names:
names:
Unified Communications Mobile and Remote Access via Cisco Expressway Deployment Guide (X8.5.1)
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Unified Communications prerequisites