NETGEAR SRX5308 Reference Manual page 53

ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
4. Enter the settings as explained in the following table:
Table 11. WAN Advanced Options screen settings
Setting
MTU Size
Make one of the following selections:
Default
Custom
Speed
In most cases, the VPN firewall can automatically determine the connection speed of the WAN port of the
device (modem or router) that provides the WAN connection. If you cannot establish an Internet
connection, you might need to manually select the port speed. If you know the Ethernet port speed of the
modem or router, select it from the drop-down list. Use the half-duplex settings only of the full-duplex
settings do not function correctly.
Select one of the following speeds from the drop-down list:
• AutoSense. Speed autosensing. This is the default setting, which can sense 1000BASE-T speed at full
duplex.
• 10BaseT Half_Duplex. Ethernet speed at half duplex.
• 10BaseT Full_Duplex. Ethernet speed at full duplex.
• 100BaseT Half_Duplex. Fast Ethernet speed at half duplex.
• 100BaseT Full_Duplex. Fast Ethernet speed at full duplex.
• 1000BaseT Full_Duplex. Gigabit Ethernet.
Router's MAC Address
Make one of the following selections:
Use Default Address
Use this computer's MAC
Address
Use this MAC Address
Failure Detection Method
See Configure the Failure Detection Method
Description
Select the Default radio button for the normal maximum transmit unit (MTU)
value. For most Ethernet networks this value is 1500 bytes, or 1492 bytes for
PPPoE connections.
Select the Custom radio button, and enter an MTU value in the Bytes field.
For some ISPs, you might 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.
Each computer or router on your network has a unique 32-bit local Ethernet
address. This is also referred to as the computer's Media Access Control
(MAC) address. To use the VPN firewall's own MAC address, select the Use
Default Address radio button.
Select the Use this computer's MAC Address radio button to allow the VPN
firewall to use the MAC address of the computer you are now using to access
the web management interface. This setting is useful if your ISP requires
MAC authentication.
Select the Use this MAC Address radio button to manually enter the MAC
address in the field next to the radio button. You would typically enter the MAC
address that your ISP is requiring for MAC authentication.
Note: 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 enter a MAC address,
the existing entry is overwritten.
on page 35, including
Connecting the VPN Firewall to the Internet
53
Table 6 on page 36.