Network And System Settings; Configuring Ip Settings - Cisco TelePresence Video Communication Server Administrator's Manual

Network and system settings

This section describes all the options that appear under the
These options enable you to configure the VCS in relation to the network in which it is located, for
example its IP settings and the external services used by the VCS (for example DNS, NTP and
SNMP).

Configuring IP settings

The IP page (System >
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
n
between two 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
n
between two 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
n
using 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 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.
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.
However, 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 occasionally required in other
complex network deployments. You can configure routes for up to 50 networks and host
combinations. IP routes can be configured using the CLI only.
LAN configuration
LAN 1 is the primary network port on the VCS.
You can configure the IPv4 address and subnet mask, and IPv6 address for this port.
For VCS Expressway boxes behind a static NAT, you can also configure the NAT's IP address. If you
have Dual Network Interfaces installed, you can also configure these options for the LAN 2 port. The
VCS is shipped with a default IP address of 192.168.0.100 (for both LAN ports). This lets you connect
the VCS to your network and access it via the default address so that you can configure it remotely.
Cisco VCS Administrator Guide (X6.1)
IP) is used to configure the IP protocols and settings of the VCS.
Network and system settings
System menu of the web interface.
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