Configuring Interface Details

• Overview

• Configuring Multiple Interface and Multiple IP address for an Interface

• SNMP Values Updated

• Starting SNMP Agent at Multiple IP address

Overview

The Network Simulator supports to configure multiple interfaces and multiple ip address for each interface, for devices of type Host, Printer and Firewall.  It provides an intuitive user-interface to configure the interface details in an easily understandable format. This enables the user to configure the interface values easily even without having to understand the MIB syntaxes. The SNMP Agent can be started at multiple IP addresses configured for each interface in the device.  

Configuring  Multiple Interface and Multiple IP address for an Interface

To add multiple interface details to a specific device,

• Right-click on the device in the network area/template tree and select SNMP -> Interfaces Info. The Interfaces Table dialog displays the details of the interfaces configured for the device.

• Click Add to add a new interface. The Interface dialog is displayed, wherein you have to specify the following details:

• ifIndex: Specify a unique value for each interface.  

• ifType:  Select the interface type from the list displayed.

• ifMTU:  Specify the size of the largest datagram which can be sent/received on the interface, specified in octets.

• ifSpeed:  Specify the ifSpeed, which is an estimate of the interface's current bandwidth in bits per second

• ifPhysAddress : Specify the ifPhysAddress. The value must be  must be 12 characters using the digits "1 to 9" and characters a to f and must be specified within single quotes followed by h, for example '1486b894f4e3'h.

• Specify  one or more IP address to be assigned to the interface and click Add.

• Click OK to add the interface entry in the device.  

SNMP Values Updated

The following SNMP values are updated in the device based on the configured interface details:

• RFC1213-MIB -> interfaces -> ifNumber : The total number of network interfaces present in the device.

• RFC1213-MIB -> ifTable: The list of interface entries given by the value of ifNumber.

• RFC1213-MIB -> ipAddrTable : The table of addressing information relevant to this entity's IP addresses.

• RFC1213-MIB -> ipNetToMediaTable :The IP Address translation table which gives the mapping from IP addresses to physical addresses.

Starting the SNMP Agent at Multiple IP address

• Select SNMP -> Start option from the right-click menu to start the SNMP Agent at multiple IP addresses configured for each interface in the device.