Cisco Cisco Expressway Maintenance Manual
Field
Description
Usage tips
Hop count
The hop count is the number of times a request will
be forwarded to a neighbor gatekeeper or proxy (see
the
be forwarded to a neighbor gatekeeper or proxy (see
the
field specifies the hop count to use when sending a
search request to this particular zone.
search request to this particular zone.
If the search request was received from
another zone and already has a hop count
assigned, the lower of the two values is used.
another zone and already has a hop count
assigned, the lower of the two values is used.
H.323
mode
mode
Determines whether H.323 calls are allowed to
systems and endpoints located using DNS lookups
via this zone.
systems and endpoints located using DNS lookups
via this zone.
SIP mode
Determines whether SIP calls are allowed to systems
and endpoints located using DNS lookups via this
zone.
and endpoints located using DNS lookups via this
zone.
TLS verify
mode and
subject
name
mode and
subject
name
Controls whether the Expressway performs X.509
certificate checking against the destination system
server returned by the DNS lookup.
certificate checking against the destination system
server returned by the DNS lookup.
If TLS verify mode is enabled, a TLS verify subject
name must be specified. This is the certificate
holder's name to look for in the destination system
server's X.509 certificate.
name must be specified. This is the certificate
holder's name to look for in the destination system
server's X.509 certificate.
This setting only applies if the DNS lookup
specifies TLS as the required protocol. If TLS
is not required then the setting is ignored.
See
specifies TLS as the required protocol. If TLS
is not required then the setting is ignored.
See
TLS verify
subject
name
subject
name
The certificate holder's name to look for in the
destination system server's X.509 certificate (must be
in either the Subject Common Name or the Subject
Alternative Name attributes).
destination system server's X.509 certificate (must be
in either the Subject Common Name or the Subject
Alternative Name attributes).
Fallback
transport
protocol
transport
protocol
The transport type to use for SIP calls from the DNS
zone, when DNS NAPTR records and SIP URI
parameters do not provide the preferred transport
information.
zone, when DNS NAPTR records and SIP URI
parameters do not provide the preferred transport
information.
The default is UDP (if enabled).
Media
encryption
mode
encryption
mode
Controls the media encryption policy applied by the
Expressway for SIP calls (including interworked
calls) to the internet.
Expressway for SIP calls (including interworked
calls) to the internet.
ICE
support
support
Controls whether ICE messages are supported by
the devices in this zone.
the devices in this zone.
Zone
profile
profile
Determines how the zone's advanced settings are
configured.
configured.
Default: uses the factory default profile.
Custom: allows you to configure each setting
individually.
individually.
Only use the Custom profile to configure the
individual advanced settings on the advice
of Cisco customer support.
individual advanced settings on the advice
of Cisco customer support.
Zone configuration: advanced settings
The table below describes the advanced zone configuration options for the Custom zone profile. Some of
these settings only apply to specific zone types.
these settings only apply to specific zone types.
Cisco Expressway Administrator Guide (X8.2)
Page 119 of 378
Zones and neighbors
Configuring zones