ProSafe Quad WAN Gigabit Firewall FR538G Reference Manual
Connecting the FR538G
2-21
v1.0, November 2007
3.
Edit the default information you want to change.
•
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
have to reduce the MTU. But this is rarely required, and should not be done unless you are
sure it is necessary for your ISP connection.
•
Port Speed
– In most cases, your router can automatically determine the connection speed
of the Internet (WAN) port. Most new devices with Ethernet ports run at full-duplex,
100Mbps modes. The router can automatically negotiate the speed with the other end of
the Ethernet connection. AutoSense is the default. However, if the Internet LED blinks
continuously, you may need to set the port speed manually. This could occur with some
older broadband modems.
If you know that the Ethernet port on your broadband modem supports 100BaseT, select
100M; otherwise, select 10M. Use the half-duplex settings unless you are sure you need
full duplex.
•
Router's MAC Address
– Each computer or router on your network has a unique 48-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
–
Use this Computer's MAC address to have the router 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 XX:XX:XX:XX:XX:XX (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.
Summary of Contents for ProSafe Quad WAN FR538G
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Page 26: ...ProSafe Quad WAN Gigabit Firewall FR538G Reference Manual 1 10 Introduction v1 0 November 2007...
Page 27: ...ProSafe Quad WAN Gigabit Firewall FR538G Reference Manual Introduction 1 11 v1 0 November 2007...
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