netshDHCP Context

netsh/DHCP Context

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.

Table 5-8. Commands available in DHCP Server subcontext

Command	Option	Description
add	class	Adds a new class
	mscope	Adds a new multicast scope
	optiondef	Adds a new option
	scope	Adds a scope
delete	class	Deletes a class
	mscope	Deletes a multicast scope
	optiondef	Deletes an option
	optionvalue	Deletes an option value
	scope	Deletes a scope
	superscope	Deletes a superscope
initiate	auth	Reauthorizes the server
	reconcile	Reconciles the DHCP database
mscope	mscope-name	Switches to specified mscope
scope	scope-ip-address	Switches to specified scope
set	auditlog	Configures audit log settings
	databasebackupinterval	Specifies database backup interval
	databasebackuppath	Specifies database backup path
	databasecleanupinterval	Specifies database cleanup interval
	databaseloggingflag	Resets flag for database logging
	databasename	Specifies name of database file
	databasepath	Specifies path of database file
	databaserestoreflag	Resets flag for database restore
	detectconflictretry	Specifies conflict detection attempts
	dnsconfig	Configures Dynamic DNS settings
	optionvalue	Configures global option value
	server	Specifies the current DHCP server
	userclass	Specifies the global user class name
	vendorclass	Specifies the global vendor class name
show	all	Displays all DHCP server settings
	auditlog	Displays the audit log settings
	bindings	Displays bindings
	class	Lists available classes
	detectconflictretry	Displays detect-conflict- retry settings
	dnsconfig	Displays Dynamic DNS settings
	mibinfo	Displays MIB information
	mscope	Lists multicast scopes
	optiondef	Displays DHCP options
	optionvalue	Displays configured option values
	scope	Lists all available scopes
	server	Displays current server
	dbproperties	Displays database configuration
	serverstatus	Shows current status of server
	userclass	Displays current user class name
	vendorclass	Displays current vendor class name
	version	Displays server version number
	optiondef	Deletes an option

Table 5-9. Commands available in DHCP Server Scope subcontext

Command	Option	Description
add	excluderange	Specifies an exclusion
	iprange	Specifies an IP address range
	reservedip	Creates a new reservation
delete	excluderange	Removes an exclusion
	iprange	Removes an IP address range
	optionvalue	Deletes a scope option value
	reservedip	Deletes a reservation
	reservedoptionvalue	Deletes a reservation option value
initiate	reconcile	Reconciles current scope
set	comment	Specifies a comment
	name	Specifies scope name
	optionvalue	Specifies an option value
	reservedoptionvalue	Specifies a reserved option value
	scope	Specifies the current scope
	state	Toggles current scope active/inactive
	superscope	Specifies the current superscope
show	clients	Lists available Version 4 clients
	clientsv5	Lists available Version 5 clients
	excluderange	Lists configured exclusions
	iprange	Lists configured IP address ranges
	optionvalue	Lists configured option values
	reservedip	Lists configured reservations
	reservedoptionvalue	Lists configured reserved option values
	scope	Displays current scope
	state	Displays state of current scope

Table 5-10. Commands available in DHCP Server Mscope subcontext

Command	Option	Description
add	excluderange	Specifies an exclusion
	iprange	Specifies an IP address range
delete	excluderange	Removes an exclusion
	iprange	Removes an IP address range
initiate	reconcile	Reconciles current scope
set	comment	Specifies a comment
	lease	Specifies lease duration
	mscope	Specifies the current scope
	name	Specifies scope name
	state	Toggles current scope active/inactive
	ttl	Specifies time-to-live (TTL) value
show	clients	Lists available clients
	excluderange	Lists configured exclusions
	iprange	Lists configured IP address ranges
	lease	Shows current lease duration
	mibinfo	Displays MIB information
	mscope	Displays current scope
	state	Displays state of current scope
	ttl	Displays time-to-live (TTL) value

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.