Clavister SG4300 Series, Getting Started Manual, Page: 41 / 68

If the PPTP tunnel object is deleted, this route is also automatically deleted.
At this point, no traffic can flow through the tunnel since there is no IP rule defined that allows it.
As was done in option A above, we must define an IP rule that will allow traffic from a designated
source network and source interface (in this example, the network ge3_net and interface ge3) to
flow to the destination network all-nets and the destination interface which is the PPTP tunnel that
we have defined.
DHCP Server Setup
If the Clavister Security Gateway is to act as a DHCP server then this can be set up in the following
way:
First create an IP4 Address object which defines the address range to be handed out. Here, we will
assume this is called dhcp_range. We will also assume that an IP4 Address object dhcp_netmask
has been created which specifies the netmask.
We now create a DHCP server object called dhcp_lan which will only be available only on the ge3
interface. To do this, go to System > DHCP > DHCP Servers and select Add > DHCP Server.
We can now specify the server properties.
In addition it is important to specify the Default gateway for the server. This will be handed out to
DHCP clients on the internal networks so that they know where to find the public Internet. The
default gateway is always the IP address of the interface on which the DHCP server is configured. In
this case, ge3_ip.
Also in the Options tab, we should specify the DNS address which is handed out with DHCP leases.
This could be set, for example, to be the IP address object dns1_address.
Syslog Server Setup
Although logging may be enabled, no log messages are captured unless at least one log server is set
up to receive them and this is configured in CorePlus. Syslog is one of the most common server
types.
First we create an IP4 Address object called, for example, syslog_ip which is set to the IP address of
the server. We then configure the sending of log messages to a Syslog server from CorePlus by
selecting System > Log and Event Receivers from the navigation tree and then choosing Add >
3.3. Manual Web Interface Setup
Chapter 3. CorePlus Configuration
41