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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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Setting a Valid BSR Address Range

Setting a Valid BSR Address Range

You can create IPv6 ACL rules on all devices to filter BootStrap router (BSR) addresses. The devices then receive only the Bootstrap messages with the source addresses being in the valid BSR address range. Thus, BSR spoofing is prevented.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Configure a basic numbered ACL6 or a naming ACL6 as needed.

    • Configure a basic numbered ACL6.

      1. Run acl ipv6 [ number ] basic-acl6-number [ match-order { auto | config } ]

        A basic numbered ACL6 is created, and the basic numbered ACL6 view is displayed.

      2. Run rule [ rule-id ] [ name rule-name ] { deny | permit } [ fragment | source { source-ipv6-address prefix-length | source-ipv6-address/prefix-length | any } ] *

        Rules are configured for the basic numbered ACL6.

    • Configure a naming ACL6.
      1. Run acl ipv6 name acl6-name basic [ match-order { auto | config } ]

        A naming ACL6 is created, and the naming ACL6 view is displayed.

      2. Run rule [ rule-id ] [ name rule-name ] { deny | permit } [ fragment | source { source-ipv6-address prefix-length | source-ipv6-address/prefix-length | any } ] *

        Rules are configured for the naming ACL6.

    If a basic numbered ACL6 is used, run the rule command and set the source parameter to the source address range of multicast packets.

    If a naming ACL6 is used, run the rule command and set the source parameter to the source address range of multicast packets.

  3. Run quit

    Return to the system view.

  4. Run pim-ipv6

    The IPv6 PIM view is displayed.

  5. Run bsr-policy { basic-acl6-number | acl6-name acl6-name }

    A valid BSR address range is set.

    • If the source address carried in a Bootstrap message is denied by the IPv6 ACL or no action is defined in the IPv6 ACL for processing such a Bootstrap message, the router discards this Bootstrap message.

    • If basic-acl6-number or acl6-name acl6-name is specified but the corresponding IPv6 ACL is not configured, the router denies all Bootstrap messages.

    NOTE:
    • If a BSR message matches an ACL rule and the action is permit, the device permits this message.
    • If a BSR message matches an ACL rule and the action is deny, the device denies this message.
    • If a BSR message does not match any ACL rule, the device denies this message.
    • If a specified ACL does not exist or does not contain rules, the device denies all BSR messages.

  6. Run commit

    The configuration is committed.

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Updated: 2019-01-03

Document ID: EDOC1100055017

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