Table Of Contents

Support for IPv6

Understanding IPv6 Support in Campus Manager

Viewing IPv6 Addresses Report

Interpreting IPv6 Addresses Report

Support for IPv6

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This chapter the Internet Protocol version 6 (IPv6) support provided in Campus Manager. It contains the following topics:

•Understanding IPv6 Support in Campus Manager

•Viewing IPv6 Addresses Report

•Interpreting IPv6 Addresses Report

Understanding IPv6 Support in Campus Manager

IPv6 support in Campus Manager includes the following network scenarios:

•Devices that may have IPv6 configured on their interfaces, but which have at least one IPv4 interface. Devices are managed using IPv4.

•Hosts running IPv6 are supported in the User Tracking application.

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Note Virtual Network Manager does not support IPv6

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Campus Manager has been updated as follows for IPv6 support:

•User Tracking Changes

•User Tracking Ping Sweep Applicability to IPv6 Subnets

•Topology Changes

User Tracking Changes

In User Tracking, hosts configured with IPv6 address are discovered and shown in the main table. IPv6 name lookup is done if IPv4 name lookup fails. That is, for a given IPv6 address, it returns the host name. IPv6 does not support reverse name lookup.

All global unicast addresses are fetched and used for User Tracking computation but link local addresses are dropped.

User Tracking end host reports have an IPv6 format. Select this format to view the IPv6 address, Prefix Length and Prefix of IPv6 enabled devices.

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Note User Tracking is not supported for IPv6 devices

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User Tracking Ping Sweep Applicability to IPv6 Subnets

Ping Sweep functionality is currently available for Class C or smaller subnets. Since with IPv6 each of the networks can be larger than Class C networks and we cannot determine individual IPv6 addresses that can be present in a given network or sub-network, Ping Sweep is not on any of the IPv6 subnets.

Topology Changes

Topology Services provides the following for IPv6 support:

•IPv6 filter that lets you highlight the IPv6 devices

•Find option for IPv6 devices

•Table for devices running IPv6

•Change Management IP Address displays IPv6 address, if the device is enabled with IPv6 option.

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Note IPv6 support for the following STP options has not been tested : Per VLAN STP Recommendations, Cisco MISTP Recommendations, and IEEE 802.1s Recommendations.

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Viewing IPv6 Addresses Report

You can view IPv6 addresses report for IPv6 enabled devices. To view this report:

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Step 1 Right-click the LAN Edge View or Layer 2 View from Network Views in the Topology Services window.

Step 2 Click Display View.

The Network Topology window appears.

Step 3 Select an IPv6 enabled device.

Step 4 Right-click the device then select IPv6 Addresses, or choose Reports > IPv6 Addresses.

The IPv6 Addresses report appears.

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Interpreting IPv6 Addresses Report

See Table 12-1 for interpreting the fields in the IPv6 Addresses Report.

Table 12-1 IPv6 Addresses Report 

Field	Description
Interface Name	Name of the IPv6 address interface.
IPv6 Address	IPv6 address of the device. An IPv6 address typically has four groups of 8 bits each. Example: 2001:5:A:3:0:0:0:2
Prefix Length	Length of the prefix. This is a decimal value representing how many of the left-most contiguous bits of the address comprise the prefix.
Prefix Address	Prefix portion of the IPv6 address. This is similar to CIDR in IPv4 and is written in CIDR notation. An IPv6 address prefix is represented by the notation: IPv6-address/prefix-length
Address Type	Type of IPv6 address. Campus Manager supports unicast addresses. The Address Type can be global, link-local, or site-local. Global addresses are identified by the Format Prefix of 001. Addresses of this type are designed to be aggregated or summarized to produce an efficient routing infrastructure. Link-local addresses are used to communicate between hosts on the link with no router. Site-local addresses are used between nodes that communicate with other nodes in the same site. Site-local addresses are identified by the Format Prefix of 1111 1110 11.