Quick Reference Guide

Table Of Contents
Chapter 2: Connecting the VPN Firewall to the Internet | 29
ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336Gv2 Reference Manual
a. MTU Size. The normal MTU (Maximum Transmit Unit) value for most Ethernet
networks is 1500 Bytes, or 1492 Bytes for PPPoE connections. For some ISPs, you
may need to reduce the MTU. This is rarely required, and should not be done unless
you are sure it is necessary for your ISP connection.
b. Port Speed. In most cases, your VPN firewall can automatically determine the
connection speed of the WAN port. If you cannot establish an Internet connection
and the WAN Link or Speed LED blinks continuously, you may need to manually
select the port speed. AutoSense is the default.
If you know that the Ethernet port on your broadband modem supports 100BaseT,
select 100BaseT Half_Duplex; otherwise, select 10BaseT Half_Duplex. Use the
half-duplex settings unless you are sure you need full duplex.
c. Router's MAC Address. Each computer or router on your network has a unique
32-bit local Ethernet address. This is also referred to as the computer's MAC (Media
Access Control) address. The default is Use default address. However, if your ISP
requires MAC authentication, then select either of these options:
Use this Computer's MAC address to have the VPN firewall use the MAC address
of the computer you are now using, or
Use This MAC Address to manually type in the MAC address that your ISP
expects.
The format for the MAC address is 01:23:45:67:89:AB (numbers 0-9 and either
uppercase or lowercase letters A-F). If you select Use This MAC Address and then
type in a MAC address, your entry will be overwritten.
4. Click Apply to save your changes.
Additional WAN Related Configuration
If you want the ability to manage the network storage remotely, enable remote
management at this time (see “Enabling Remote Management Access” on page 139). If
you enable remote management, we strongly recommend that you change your
password (see “Changing Passwords and Administrator Settings” on page 137).
At this point, you can set up the traffic meter for each WAN. See “Enabling the Traffic
Meter” on page 149.