Avaya manual Connecting the SG203/SG208 security gateway to the network, Multi-interface ports

Avaya SG203/SG208 Security Gateway Hardware Installation Guide

Multi-interface ports

Four ports are available on the security gateway, public, private and two other interface ports that are not designated.

The public port provides an interface to the public Internet network, while the private port provides an interface to the private local network. The other two could be used for public-backup, semi-private, DMZ, or management interface zones.

The SG203 requires a crossover cable when connecting to a router and uses a straight-through cable when connecting to a hub or switch. The SG208 can use any type of cable (crossover or straight-through) when connecting to a hub, switch, or router.

NOTE: To realize maximum performance when operating at the 1000 Base-T rate, it is necessary to use CAT5e cables, shipped with the device. Standard CAT5 cables are not rated for full Gigabit data rates.

Connecting the SG203/SG208 security gateway to the network

The supplied Cat5e cables are used to connect the security gateway to the public network and the private LAN. Figure 6 shows a typical network using the SG203 and SG208 security gateway.

20 Installing SG203 and SG208 Security Gateway March 2004