HP 6125XLG R2306-HP 6125XLG Blade Switch IP Multicast Configuration Guide - Page 164
Configuration prerequisites, Configuring an IPv6 multicast data filter
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Configuration prerequisites Before you configure common IPv6 PIM features, complete the following tasks: • Configure an IPv6 unicast routing protocol so that all devices in the domain are interoperable at the network layer. • Configure IPv6 PIM-DM or IPv6 PIM-SM. Configuring an IPv6 multicast data filter In either an IPv6 PIM-DM domain or an IPv6 PIM-SM domain, routers can check passing-by IPv6 multicast data and determine whether to continue forwarding the IPv6 multicast data based on the configured filtering rules. You can configure an IPv6 PIM router as an IPv6 multicast data filter to help implement traffic control and control the information available to downstream receivers. A filter can filter not only independent IPv6 multicast data but also IPv6 multicast data encapsulated in register messages. Generally, a filter nearer to the IPv6 multicast source has a better filtering effect. To configure an IPv6 multicast data filter: Step 1. Enter system view. 2. Enter IPv6 PIM view. 3. Configure an IPv6 multicast data filter: Command system-view ipv6 pim source-policy acl6-number Remarks N/A N/A By default, no IPv6 multicast data filter is configured. Configuring a hello message filter Along with the wide applications of IPv6 PIM, the security requirement for the protocol is becoming increasingly demanding. The establishment of correct IPv6 PIM neighboring relationship is a prerequisite for secure application of IPv6 PIM. To guard against IPv6 PIM message attacks, you can configure a legal source address range for hello messages on interfaces of routers to ensure the correct IPv6 PIM neighboring relationship. To configure a hello message filter: Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number 3. Configure a hello message filter. ipv6 pim neighbor-policy acl6-number Remarks N/A N/A By default, no hello message filter exists. If an IPv6 PIM neighbor's hello messages cannot pass the filter, the neighbor is automatically removed when its maximum number of hello attempts is reached. 157