CSX200 Configuration with QuickSETCSX200 Family User’s Guide 65This section describes the fields in the first Bridging and Routing configuration window.MAC Bridging — This field allows you to specify whether or not the CSX200 bridges traffic.Click on the check box to turn MAC Bridging on.Spanning Tree Protocol — This field is grayed out until MAC Bridging is turned on. It allowsyou to configure the CSX200 to use the Spanning Tree Protocol, which lets the remote devicecheck for bridging loops, and other sites that use the Spanning Tree Protocol. Click on the checkbox to turn on Spanning Tree Protocol.IP Routing — The IP Routing check box allows you to turn on/off IP Routing. Click on the checkbox to turn on IP Routing.IPX Routing — The IPX Routing check box allows you to turn on/off IPX Routing. Click on thecheck box to turn on IPX Routing.External Ethernet Network # — This field displays the IPX network number assigned to theexternal Ethernet network on the Ethernet port. It is grayed out until IPX Routing is turned on.Frame Type — This field is grayed out until IPX Routing is turned on. It allows you to select thetype of IPX frame in which packets are encapsulated for transmission. Select one of the fouravailable frame types.The Firewall Configuration WindowThe Firewall configuration window shown in Figure 28 displays after clicking on the Firewall...button in the first Bridging and Routing configuration window. The Firewall configuration windowis used to configure an Access Control List (ACL), and to allow or deny specified IP addresses tocommunicate through the CSX200.The Access Control List option allows you to create access control lists that restrict traffic to, from,or between specific IP hosts, subnets, or networks. You can configure access control restrictionsbased on the following:• The source, destination, or a combination of the source and destination address of a packet.• The upper layer protocol type of a packet such as TCP, UDP, ICMP, or all TCP/IP protocols.• The TCP or UDP port number of a packet.
