Multitech PROXYSERVER MTPSR1-120, User Manual

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32 MTPSR1-120
Dual Ethernet ProxyServer User Guide
Changing IP Parameters
The IP Setup dialog box displays the IP addressing for your private LAN, Public LAN, and (if the
Firewall is connected directly to the Internet) the WAN port. To change the IP Setup parameters that
were configured during the initial setup, click IP on the Firewall Setup menu. The IP Setup dialog is
displayed.
The Secured LAN Port Parameters group is used to assign the Ethernet parameters of your private
LAN (connected to the ETHERNET 1) port. If a router is used to connect a second private LAN, the
IP address of that router is also entered in this group.
IP Address - This field defines the IP address of the private LAN port (ETHERNET 1) on the
Firewall. This must be a unique host IP address that falls within the LAN IP network, and can
be an unregistered address.
Net Mask - This field defines the Subnetwork Mask of the private LAN port (ETHERNET 1)
on the back panel of the Firewall.
Default Route - This field defines the IP address of a router on the private LAN that connects
a second private LAN to the Firewall.
The Internet LAN Port Parameters group is used to configure the public LAN port (ETHERNET 2).
The parameters of this group will vary, depending on the LAN configuration. The Internet LAN Port
Parameters group defines the static or dynamic addressing scheme for the public LAN (connected to
ETHERNET 2 on the back panel of the Firewall).
DHCP Client - The DHCP (Dynamic Host Configuration Protocol) Client option can be used if
your Internet Services Provider (ISP) is able to dynamically provide the registered Internet IP
addresses. However, if your ISP uses static IP addressing, the DHCP Client option must be
deactivated and the IP Address field becomes active. The static IP address is then entered in
this field.
IP Address - If the DHCP Client option is active, this address is dynamically assigned by the
ISP. If the DHCP Client is inactive, then the static IP address of the router connected to the
Internet Services Network is entered in this field.
Net Mask - If the DHCP Client option is active, the Net Mask is dynamically assigned by the
ISP. If the DHCP Client is inactive, then the Net Mask provided by the ISP for the Public LAN
is entered in this field.
DHCP Relay Agent - This option enables the Firewall to relay IP address requests from the
Internet through the WAN to the DHCP server. If this option is enabled, the DHCP Server
Address field becomes active, awaiting entry of the IP address of the DHCP server.
DHCP Server Address - If the DHCP Relay Agent option is active, enter the IP address of
the DHCP server in this field.