Cisco Systems RJ-45-to-AUX manual Configuring IPX InterVLAN Routing on an External Router, 113

2.Specify an IP routing protocol such as Open Shortest Path First (OSPF), Routing Information Protocol (RIP), Internet Gateway Routing Protocol (IGRP), or Enhanced IGRP (EIGRP) and identify the network:

Cisco7505(config)#router rip

Cisco7505(config−router)#network 192.1.0.0

3.Create a subinterface on a physical interface in Interface Configuration mode for the port connected to the switch:

7505(config−router)#interface fastethernet2/0.100

4. Specify the encapsulation type and VLAN number to use on the subinterface:

7505(config−subif)#encapsulation isl 100

5. Assign an IP address and subnet mask to the subinterface:

7505(config−subif)#ip address 192.1.1.1 255.255.255.0

6.To configure any other interfaces, repeat Steps 3 through 5 for each VLAN between the switches that you want to route traffic:

7505(config−router)#interface fastethernet2/0.200 7505(config−subif)#encapsulation isl 200 7505(config−subif)#ip address 192.1.2.3 255.255.255.0

Configuring IPX InterVLAN Routing on an External Router

In order to understand this section, you should be familiar with Cisco IOS software running on Cisco routers. In this demonstration, we will configure a Cisco 7505:

1.To enable IP routing on the router, enter Global Configuration mode and use the ipx routing command:

7505#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. 7505(config)#ipx routing

2. Specify an IPX routing protocol, such as RIP, and identify all the networks:

Cisco7505(config)#ipx router rip

Cisco7505(config−router)#network all

3.Create a subinterface on a physical interface in Interface Configuration mode for the port connected to the switch:

7505(config−router)#interface fastethernet2/0.1

4. You must specify the encapsulation type and VLAN number to use on the subinterface:

7505 (config−subif)#ipx encapsulation isl 1

5.Assign a network number to the subinterface and identify an encapsulation type for IPX, such as snap, novell−ether, arpa or sap:

7505(config−subif)# ipx network 1 encapsulation sap

6.To configure any other interfaces, repeat Steps 3 through 5 for each VLAN between the switches you want to route traffic:

7505(config−subif)#interface fastethernet2/0.2 7505(config−subif)#encapsulation isl 2 7505(config−subif)#ipx network 2 encapsulation sap

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