DHCP for IPSec

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Global settings of IPSec with DHCP

Last adaptation to the version: 12.5.0

New:

• Selection for DHCP source changed

notempty

This article refers to a Resellerpreview

v12

Access: UTM-IP:Port or UTM-URL:Port
Port as configured at Network / Appliance Settings / Webserver
Default-Port: 11115
i.e.: https://utm.ttt-point.de:11115
Default: https://192.168.175.1:11115 → VPN →IPSecTab Global

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Preparations

An IP address range for the network of the selected interface must be available on the DHCP server.

On the UTM, this is configured under → Network →Network ConfigurationTab DHCP Pools.
Further setup instructions in the Wiki article on DHCP.

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IPSec DHCP settings

Caption	Value	Description	Dialog for the global DHCP settings of IPSec clients
Mode notempty New as of v12.5.0	ServerInterface	Determines whether DHCP requests are send to a specific server or via an interface as broadcast
DHCP-Server: Only for mode Server	192.168.222.1	Sets a DHCP server address to be used. It can also be a unicast address. For example, to be used with remote DHCP servers that can only be reached via routed networks.
DHCP-Interface: Only for mode Interface	LAN2 (UTM-Pools: xyz)	Specifies an interface through which DHCP requests from the client are forwarded as a broadcast. If applicable the names of the pools configured under → Network →Network ConfigurationTab DHCP Pools and belonging to a network configured on the interface are displayed.
Static DHCP identity:	Off	For On, a static DHCP client identity and MAC address is generated for each client from its IPSec identity (e.g., certificate DN, EAP identity) to allow static IP addresses to be assigned by the server.
Save and restart		Saves the settings and restarts the IPSec service notempty This will interrupt all existing IPSec connections