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NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services
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Configuring ICMPv6 Message Control

Configuring ICMPv6 Message Control

In ICMPv6 message control, the token bucket algorithm is adopted, and one token represents one ICMPv6 message. Tokens are placed in the virtual bucket at fixed intervals until the capacity of the token bucket reaches the upper threshold. If the number of ICMPv6 messages exceeds the upper threshold, extra messages are discarded.

Pre-configuration Tasks

Before configuring ICMPv6 message control, complete the following tasks:

  • Connect interfaces and configure physical parameters for the interfaces to ensure that the physical status of the interfaces is Up.

  • Configure link layer protocol parameters for the interfaces to ensure that the link layer protocol status of the interfaces is Up.

  • Configure IPv6 addresses for interfaces.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run ipv6 icmp-error { bucket bucket-size | ratelimit interval } *

    The ICMPv6 error message transmission interval is set.

  3. Run undo ipv6 icmp { icmpv6-type icmpv6-code | icmpv6-name | all } send

    the system is disabled from sending ICMPv6 messages.

  4. Run undo ipv6 icmp { icmpv6-type icmpv6-code | icmpv6-name | all } receive

    the system is disabled from receiving ICMPv6 messages.

  5. (Optional) Run undo ipv6 icmp too-big-rate-limit

    The device is disabled from suppressing ICMPv6 Packet Too Big messages.

  6. Run interface interface-type interface-number

    The interface view is displayed.

  7. Run undo ipv6 icmp hop-limit-exceeded send

    An interface is disabled from sending ICMPv6 Hop Limit Exceeded messages.

  8. Run undo ipv6 icmp host-unreachable send

    An interface is disabled from sending ICMPv6 Host Unreachable messages.

  9. Run undo ipv6 icmp port-unreachable send

    An interface is disabled from sending ICMPv6 Port Unreachable messages.

  10. (Optional) Run ipv6 icmp { hop-limit-exceeded | port-unreachable } source-address

    The source IPv6 address of ICMPv6 Port Unreachable or Time Exceeded messages is configured.

  11. Run commit

    The configuration is committed.

Verifying the Configuration of ICMPv6 Message Control

After configuring ICMPv6 message control, verify the configuration.

  • Run the display ipv6 interface [ interface-type interface-number | brief ] command to check IPv6 configurations on an interface.

  • Run the display icmpv6 statistics [ interface-type interface-number ] command to check statistics about ICMPv6 traffic on an interface.

Run the display ipv6 interface command. The command output shows the IPv6 addresses configured on an interface.

<HUAWEI> display ipv6 interface gigabitethernet 0/1/0
GigabitEthernet0/1/0 current state : UP 
IPv6 protocol current state : UP
link-local address is FE80::200:1FF:FE04:5D00
  Global unicast address(es):
2001::1, subnet is 2001::/64
  Joined group address(es):
    FF02::1:FF00:1
    FF02::1:FF04:5D00
    FF02::2
    FF02::1
  MTU is 1500 bytes
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 1200000 milliseconds
  ND retransmit interval is 1000 milliseconds
  Hosts use stateless autoconfig for addresses

Run the display icmpv6 statistics command. The command output shows statistics about ICMPv6 traffic.

<HUAWEI> display icmpv6 statistics
ICMPv6 protocol:
  Sent packets:

    Total              : 16
    Unreached          : 0              Prohibited         : 0
    Hop count exceeded : 0              Parameter problem  : 0
    Too big            : 0              Echoed             : 5
    Echo replied       : 5              Router solicit     : 0
    Router advert      : 0              Neighbor solicit   : 4
    Neighbor advert    : 2              Redirected         : 0
    Rate limited       : 0

  Received packets:

    Total              : 16             Format error       : 0
    Checksum error     : 0              Too short          : 0
    Bad code           : 0              Bad length         : 0
    Unknown info type  : 0              Unknown error type : 0
    Unreached          : 0              Prohibited         : 0
    Hop count exceeded : 0              Parameter problem  : 2
    Too big            : 0              Echoed             : 5
    Echo replied       : 5              Router solicit     : 0
    Router advert      : 0              Neighbor solicit   : 4
    Neighbor advert    : 2              Redirected         : 0
    Rate limited       : 0
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Updated: 2019-01-02

Document ID: EDOC1100055376

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