Netgate 4200 - Dhcp Server

Security Gateway Manual Netgate-4200
• Uncheck Block private networks
This interface is a private network, this option would prevent it from functioning.
• Uncheck Block bogon networks
The rules on this interface should only allow traffic from the subnet on the interface, making this option unnec-
essary.
• Click Save
• Click Apply Changes
The lack of a selected gateway in the interface configuration causes the firewall to treat the interface as a LAN type
interface.
The firewall uses LAN type interfaces as sources of outbound NAT traffic but does not apply outbound NAT on traffic
exiting a LAN. The firewall does not add any extra properties on firewall rules to influence traffic behavior. The DNS
Resolver will accept queries from clients on LAN type interfaces.
See also:
Interface Configuration
2.6.4 DHCP Server
Next, configure DHCP service for this local interface. This is a convenient and easy way assign addresses for clients
on the interface, but is optional if clients will be statically addressed instead.
This configuration varies slightly depending on the DHCP server and version.
See also:
DHCPv4 Configuration
• Navigate to Services > DHCP Server, OPTx tab (or the custom name)
• Check Enable
• Configure the Address Pool Range, e.g. from 192.168.2.100 to 192.168.2.199
This sets the lower (From) and upper (To) bound of automatic addresses assigned to clients.
• The rest of the settings can be left at defaults
• Click Save
2.6.5 Outbound NAT
For clients on this interface to reach the Internet from private addresses, the firewall must apply Outbound NAT for the
new subnet.
• Navigate to Firewall > NAT, Outbound tab
• Check the current outbound NAT mode and follow the section below which matches the mode.
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