Cisco Cisco Virtualization Experience Client 2111 Administrator's Guide

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Cisco Virtualization Experience Client 2112/2212 ICA Administration Guide for WTOS 7.0_214
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Appendix A      Central Configuration: Automating Updates and Configuration
Configuring Network Services
Tip
The zero client conforms to both RFC-compliant DHCP servers (RFC numbers 2131 and 2132) and 
RFC-noncompliant Microsoft servers (which NULL terminate strings sent to the zero client). The 
zero client supports both infinite leases and leases that expire (per RFC 2131 and others).
Tip
Not all options in the range 128 to 254 are strings. Options 186, 190, and 192 are employed for all 
Cisco products that use Cisco VXC Manager. Their format and content are determined by the Cisco 
VXC Manager product.
Configuring DNS
Zero clients accept valid DNS names registered on a DNS server available to the enterprise intranet. In 
most cases, DNS is not required but may be used to allow hosts to be accessed by their registered DNS 
names rather than their IP addresses. Every Windows DNS server in Windows 2000 and later includes 
Dynamic DNS (DDNS) and every server registers dynamically with the DNS server. There are also 
DDNS implementations available for UNIX environments. However, the zero client does not perform 
dynamic registration, and therefore, requires a static or non-variant IP address and manual DNS 
registration in order to provide LPD support by name (for example, in the case where the zero client is 
used as an LPD printer server or if DHCP is not available). For DHCP entry of DNS domain and server 
location information, refer to 
Configuring WINS
The zero client does not do dynamic registration and therefore, requires a static or non-variant IP address 
and manual Windows Internet Naming Service (WINS) registration. Use the network address of an 
available WINS name server. WINS allows the zero client user to specify remote systems by their host 
names rather than IP addresses. If a specific IP address (instead of a name) is entered for a connection, 
it rather than WINS will be used to make the connection. These entries are supplied through DHCP, if 
DHCP is used.
Tip
You may use two WINS server addresses, separated by a semicolon, comma, or space. The first 
address is for the primary WINS server and the second address is for a backup WINS server.
Configuring Cisco VXC Manager Servers
Cisco VXC Manager servers provide network management services to the zero client (complete 
user-desktop control—with features such as remote shadow, reboot, shutdown, boot, rename, automatic 
device check-in support, Wake-On-LAN, change device properties, and so on). Use the IP addresses or 
host names with optional TCP port number for Cisco VXC Manager servers. Each entry with optional 
port number is specified in the form IP:port or name:port, where :port is optional (if not specified, port 
80 is used).