Network Settings; Configuring Ip Settings - Cisco TelePresence Administrator's Manual

Network settings

Configuring IP settings

The IP page (System > IP) is used to configure the IP protocols and settings of the VCS.
IP protocol configuration
You can configure whether the VCS uses IPv4, IPv6 or Both protocols. The default is Both.
IPv4: it only accepts registrations from endpoints using an IPv4 address, and only takes calls between two
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endpoints communicating via IPv4. It communicates with other systems via IPv4 only.
IPv6: it only accepts registrations from endpoints using an IPv6 address, and only takes calls between two
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endpoints communicating via IPv6. It communicates with other systems via IPv6 only.
Both: it accepts registrations from endpoints using either an IPv4 or IPv6 address, and takes calls using
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either protocol. If a call is between an IPv4-only and an IPv6-only endpoint, the VCS acts as an IPv4 to
IPv6 gateway. It communicates with other systems via either protocol.
Note:
Some endpoints support both IPv4 and IPv6, however an endpoint can use only one protocol when
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registering with the VCS. Which protocol it uses is determined by the format used to specify the IP address
of the VCS on the endpoint. After the endpoint has registered using either IPv4 or IPv6, the VCS only
sends calls to it using this addressing scheme. Calls made to that endpoint from another device using the
other addressing scheme are converted (gatewayed) by the VCS.
All IPv6 addresses configured on the VCS are treated as having a /64 network prefix length.
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IPv4 to IPv6 gatewaying (interworking)
The VCS can act as a gateway for calls between IPv4 and IPv6 devices. To enable this feature, select an IP
protocol of Both. Calls for which the VCS is acting as an IPv4 to IPv6 gateway are traversal calls and
require a traversal call license.
IP gateways and IP routes (static routes)
You can set the default IPv4 gateway and IPv6 gateway used by the VCS. These are the gateways to which
IP requests are sent for IP addresses that do not fall within the VCS's local subnet.
The default IPv4 gateway is 127.0.0.1, which should be changed during the commissioning process.
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The IPv6 gateway, if entered, must be a static global IPv6 address. It cannot be a link-local or a stateless
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auto-configuration (SLAAC) IPv6 address.
You can also configure additional IP routing information (static routes) on the VCS. This is sometimes
required when using the Dual Network Interfaces option and deploying the VCS in a DMZ. They may also be
required occasionally in other complex network deployments.
IP routes can be configured using the CLI only: routes can be added by using the
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command and can be modified by using the
Cisco VCS Administrator Guide (X7.1)
xConfiguration IP Route commands.
Network and system settings
xCommand RouteAdd
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