Quick Reference Guide

Chapter 3. Performing Network and System Management | 55
ProSecure Web/Email Security Threat Management (STM) Appliance
3. Click Apply to save your settings. (If you click Reset, the STM restarts to restore the
default network settings.) Changing the network settings has the following consequences:
• Changing any of the settings in the Management Interface Settings section of the
screen causes the STM to restart.
• Changing any of the settings in the Interface Speed & Duplex Settings section of the
screen causes the network to restart.
• Changing the MTU setting causes services such as HTTP and SMTP to restart.
STM600
(see Figure 32 on
page 53)
MGMT From the Set Speed/Duplex drop-down list, make one of the
following selections:
• auto. Speed autosensing. This is the default setting.
• 10baseT/Half. Ethernet speed at half duplex.
• 10baseT/Full. Ethernet speed at full duplex.
• 100baseT/Half. Fast Ethernet speed at half duplex.
• 100baseT/Full. Fast Ethernet speed at full duplex.
PAIR1 UPLINK
PAIR1 DOWNLINK
PAIR2 UPLINK
PAIR2 DOWNLINK
STM300
(see Figure 33 on
page 53)
MGMT From the Set Speed/Duplex drop-down list, make one of the
following selections:
• auto. Speed autosensing. This is the default setting.
• 10baseT/Half. Ethernet speed at half duplex.
• 10baseT/Full. Ethernet speed at full duplex.
• 100baseT/Half. Fast Ethernet speed at half duplex.
• 100baseT/Full. Fast Ethernet speed at full duplex.
UPLINK
DOWNLINK
STM150
(see Figure 34 on
page 54)
LAN1
LAN2
LAN3
LAN4
From the Set Speed/Duplex drop-down list, make one of the
following selections:
• auto. Speed autosensing. This is the default setting, which can
sense 1000BaseT speed at full duplex.
• 10baseT/Half. Ethernet speed at half duplex.
• 10baseT/Full. Ethernet speed at full duplex.
• 100baseT/Half. Fast Ethernet speed at half duplex.
• 100baseT/Full. Fast Ethernet speed at full duplex.
Note: All LAN interfaces share the same MAC address, speed,
and duplex mode.
Note: The STM150 does not provide a dedicated management
interface.
WAN
MTU Settings
Maximum
Transmission Unit
The maximum transmission unit (MTU) is the largest physical packet size that a
network can transmit. Packets that are larger than the MTU value are divided into
smaller packets before they are sent, an action that prolongs the transmission process.
For most Ethernet networks the MTU value is 1500 bytes, which is the default setting.
Note: NETGEAR recommends synchronizing the STM’s MTU setting with that of your
network to prevent delays in transmission.
Table 13. Network Settings (Continued)
Setting Description (or Subfield and Description)