Professional Windows Server 1002003 Security A Technical Reference [Electronic resources] نسخه متنی

Configures
DHCP servers.

Subcontexts

Server

Scope

Mscope

Commands

list

Lists available DHCP commands (more verbose than
help).

dump

Dumps the configuration of the DHCP server as a series of NetShell
commands.

add server [servername | serveraddress]

Adds a DHCP server to the list of authorized DHCP servers stored in
Active Directory. You can specify either the DNS name or IP address
of the server.

delete server [servername | serveraddress]

Removes a DHCP server from the list of authorized DHCP servers.

show server

Lists all authorized DHCP servers in the current domain.

server [\\servername | serveraddress]

Enters the subcontext for the specified DHCP server, which enables
you to configure the DHCP server using the add,
delete, initiate,
scope, mscope,
set, and show commands. These
commands and their options are summarized in Table 5-8.

Note that the scope and mscope
commands enter new subcontexts. The Scope context configures a
specific scope on the server, and Mscope configures multicast scopes.
The commands available in these subcontexts are shown in Table 5-9
and Table 5-10.

You can tell what context you are currently in by the command prompt
during a NetShell session. For example:

C:\>netsh
netsh>dhcp
dhcp>server \\mydhcp
dhcp server>

In the previous example, you move from the Windows command shell to the NetShell global context (netsh>), then to the DHCP context (dhcp>), and finally to the DHCP server context (dhcp server>), which is a subcontext for a particular DHCP server. From here, you could move deeper into the subcontext of a particular scope on the specified server and so on.

Examples

Configure the scope on the DHCP server with IP address 172.16.11.104:

C:\>netsh
netsh>dhcp
dhcp>server 172.16.11.104
dhcp server>show scope
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Scope Address  - Subnet Mask    - State   - Scope Name          
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
172.16.11.0    - 255.255.255.0  -Active   -Building 14
Total No. of Scopes = 1
Command completed successfully.

Switch to subcontext of the defined scope:

dhcp server>scope 172.16.11.0
Changed the current scope context to 172.16.11.0 scope.

Show the range of IP addresses in the current scope:

dhcp server scope>show iprange
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Start Address   -    End Address    -     Address Type
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
172.16.11.220   -    172.16.11.240   -    DHCP ONLY
No. of IPRanges : 1 in the Scope : 172.16.11.0.
Command completed successfully.

Show addresses excluded from the scope:

dhcp server scope>show excluderange
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Start Address   -    End Address
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
172.16.11.233   -   172.16.11.233
No. of ExcludeRanges : 1 in the Scope : 172.16.11.0.
Command completed successfully.

To exclude the addresses 172.16.11.236 through 172.16.11.238 from the
scope, first check the syntax for adding an exclusion range:

dhcp server scope>add excluderange ?
To exclude a range of IP addresses from distribution by the scope.
Syntax:
add excluderange StartIP EndIP
Parameters:
StartIP        - The starting IP address of the 
exclusion range.
EndIP          - The ending IP address of the 
exclusion range.
Example:       add excluderange 10.2.2.10 10.2.2.20
This command excludes IP addresses in the range 10.2.2.10 to 10.2.2.20 from 
distribution in the scope.

Exclude the addresses:

dhcp server scope>add excluderange 172.16.11.236  172.16.11.238
Command completed successfully.

Verify the results:

dhcp server scope>show excluderange
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Start Address   -    End Address
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
172.16.11.233   -   172.16.11.233
172.16.11.236   -   172.16.11.238
No. of ExcludeRanges : 2 in the Scope : 172.16.11.0.
Command completed successfully.

Quit the NetShell shell:

dhcp server scope>quit
C:\>

Notes

• You must be a member of the Enterprise Admins group to configure DHCP
  servers.

• NetShell's DHCP context is particularly useful for
  managing remote DHCP servers over slow WAN links where using the
  remote-administration Terminal Server mode to run the GUI DHCP
  management tool would result in poor performance.

See Also

DHCP