In many cases,
you won??™t find any classes defined. Use the asterisk (*) wildcard to obtain class identifiers for all
of the adapters on the local machine. Most servers won??™t have any DHCP class identifiers
defined for the installed adapters. The easiest way to detect this setup information is to type
IPConfig /showclassid *
and press Enter.
/setclassid
Modifies or sets the DHCP class identifier for the specified adapter. Use the
asterisk (*) wildcard to set the class identifier for all adapters on the local machine. Using this
command line switch without specifying a class identifier clears the class identifier information
for the specified adapter. Using the network shown in Figures 11.1 and 11.2 as an example, if you
wanted to set the DHCP class identifier for the second adapter to TEST, you??™d type
IPConfig /
setclassid ???Local Area Connection 2??? TEST
and press Enter. You??™ll find an article on how
setting DHCP class identifiers improves security at
http://articles.techrepublic.com.com/
5100-1035_11-5498436.html
.
296 CHAPTER 11
WORKING WITH TCP/IP
Figure 11.3
Discover DNS
information for your
network using the
/displaydns switch.
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