Introduction to IPv6

Configurable IPv6 Security

IP Preserve

IP Preserve operation preserves both the IPv4 and IPv6 addresses configured on VLAN 1 (the default VLAN) when a configuration file is downloaded to the switch using TFTP. Refer to “IP Preserve for IPv6” on page 5-23.

Multicast Listener Discovery (MLD)

MLD operates in a manner similar to IGMP in IPv4 networks. In the factory default state (MLD disabled), the switch floods all IPv6 multicast traffic it receives on a given VLAN through all ports on that VLAN except the port receiving the inbound multicast traffic. Enabling MLD imposes management controls on IPv6 multicast traffic to reduce unnecessary bandwidth usage. MLD is configured per- VLAN. For information on MLD, refer to the chapter titled “Multicast Listener Discovery (MLD) Snooping”.

Web Browser Interface

For the web browser interface, software release K.13.01 adds the following IPv6 functionality:

■configure and display IPv6 addressing

■ping6 diagnostic operation

Configurable IPv6 Security

This section outlines the configurable IPv6 security features supported in software release K.13.01. For further information on these features, refer to the indicated pages.

SSHv2 on IPv6

SSHv2 provides for the authentication between clients and servers, and protection of data integrity, and privacy. It is used most often to provide a secure alternative to Telnet and is also used for secure file transfers (SFTP and SCP). Software release K.13.01 with SSHv2 on IPv6 extends to IPv6 devices the SSH functionality that has been previously available on ProCurve switches running IPv4. This means that SSH version 2 connections are

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