DHCP Configuration
16.1 Configuring DHCP Scopes
SCALANCE W1750D UI
284
Configuration Manual, 02/2018, C79000-G8976-C451-02
(scalance)(DHCP Profile <profile-name>)# domain-name <domain-name>
(scalance)(DHCP Profile <profile-name>)# lease-time <seconds>
(scalance)(DHCP Profile <profile-name>)# option <type> <value>
(scalance)(DHCP Profile <profile-name>)# end
(scalance)# commit apply
To configure a Local, L3 DHCP scope:
(scalance)(config)# ip dhcp <profile-name>
(scalance)(DHCP Profile <profile-name>)# server-type <local,l3>
(scalance)(DHCP Profile <profile-name>)# server-vlan <vlan-ID>
(scalance)(DHCP Profile <profile-name>)# subnet <IP-address>
(scalance)(DHCP Profile <profile-name>)# subnet-mask <subnet-mask>
(scalance)(DHCP Profile <profile-name>)# exclude-address <IP-address>
(scalance)(DHCP Profile <profile-name>)# dns-server <name>
(scalance)(DHCP Profile <profile-name>)# domain-name <domain-name>
(scalance)(DHCP Profile <profile-name>)# lease-time <seconds>
(scalance)(DHCP Profile <profile-name>)# option <type> <value>
(scalance)(DHCP Profile <profile-name>)# end
(scalance)# commit apply
16.1.2
Configuring Distributed DHCP Scopes
SCALANCE W allows you to configure the DHCP address assignment for the branches
connected to the corporate network through Virtual Private Network (VPN). You can
configure the range of DHCP IP addresses used in the branches and the number of client
addresses allowed per branch. You can also specify the IP addresses that must be excluded
from those assigned to clients, so that they are assigned statically.
SCALANCE W supports the following distributed DHCP scopes:
●
Distributed, L2—In this mode, the VC acts as the DHCP server, but the default gateway
is in the data center. Based on the number of clients specified for each branch, the range
of IP addresses is divided. Based on the IP address range and client count configuration,
the DHCP server in the VC controls a scope that is a subset of the complete IP address
range for the subnet distributed across all the branches. This DHCP assignment mode is
used with the L2 forwarding mode.
●
Distributed, L3 —In this mode, the VC acts as the DHCP server and the default gateway.
Based on the number of clients specified for each branch, the range of IP addresses is
divided. Based on the IP address range and client count configuration, the DHCP server
in the VC is configured with a unique subnet and a corresponding scope.