User`s guide

ZyWALL IDP 10 User’s Guide
Chapter 4 Interface Screens 36
CHAPTER 4
Interface Screens
This chapter shows you how to configure the ZyWALL ports.
4.1 10/100M Auto-Sensing Ethernet Ports
The ZyWALL supports 10/100Mbps auto-negotiating Ethernet. There are two factors related
to the connection of two Ethernet ports: speed and duplex mode. In a 10/100Mbps fast
Ethernet, the speed can be 10Mbps or 100Mbps and the duplex mode can be half duplex or full
duplex. The auto-negotiation capability makes one Ethernet port able to negotiate with a peer
automatically to obtain the optimal connection speed and duplex mode.
When auto-negotiation is turned on, the Ethernet port of the ZyWALL negotiates with the peer
Ethernet port on the Ethernet cable automatically to determine the optimal connection speed
and duplex mode. If the peer Ethernet port does not support auto-negotiation or turns off this
feature, the ZyWALL determines the connection speed by detecting the signal on the cable
and using half duplex mode. When the ZyWALL’s auto-negotiation is turned off, the Ethernet
port uses the pre-configured speed and duplex mode settings when making a connection, thus
requiring you to check the settings of the peer Ethernet port in order to connect.
4.2 Configuring Link
To change your ZyWALL’s link settings, click INTERFACE, then the Link tab.