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Quidway V100R006C00 Configuration Manual

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Quidway S2700 Series Ethernet Switches
V100R006C00
Configuration Guide - IP Service
Issue
01
Date
2011-07-15
HUAWEI TECHNOLOGIES CO., LTD.

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  • Page 1 Quidway S2700 Series Ethernet Switches V100R006C00 Configuration Guide - IP Service Issue Date 2011-07-15 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

  • Page 3: About This Document

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service About This Document About This Document Intended Audience This document describes the configurations of the IP services of the S2700, including the basic knowledge and configurations of secondary IP addresses, DNS, IP performance, basic IPv6 functions.

  • Page 4: Command Conventions

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service About This Document Command Conventions The command conventions that may be found in this document are defined as follows. Convention Description Boldface The keywords of a command line are in boldface.

  • Page 5: Table Of Contents

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service Contents Contents About This Document........................ii 1 IP Addresses Configuration......................1 1.1 Introduction to IP Addresses..........................2 1.2 Features of IP Addresses Supported by the S2700.....................2 1.3 Configuring IP Addresses for Interfaces......................3 1.3.1 Establishing the Configuration Task......................3 1.3.2 Configuring a Primary IP Address for an Interface...................3...
  • Page 6 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service Contents 2.6.2 Configure an IP Addresses for the Interface....................18 2.6.3 Enabling Proxy ARP Within a VLAN....................18 2.6.4 Checking the Configuration........................18 2.7 Configuring Proxy ARP Between VLANs.......................19 2.7.1 Establishing the Configuration Task.......................19 2.7.2 Configuring an IP Addresses for the Interface..................20...
  • Page 7 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service Contents 4.4.1 Clearing DNS Entries..........................50 4.4.2 Monitoring Network Operation Status of DNS..................51 4.4.3 Debugging DNS............................51 4.5 Configuration Examples...........................52 4.5.1 Example for Configuring DNS........................52 5 Basic Configurations of IPv6.....................56 5.1 Introduction to IPv6............................57 5.2 IPv6 Features Supported by the S2700......................57...
  • Page 8 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service Contents 6.5.1 Example for Configuring IPv6 DNS.......................79 Issue 01 (2011-07-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 9: Ip Addresses Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 1 IP Addresses Configuration IP Addresses Configuration About This Chapter By assigning IP addresses to network devices, you can enable data communications between the network devices. 1.1 Introduction to IP Addresses IP is the core of the TCP/IP protocol suite.

  • Page 10: Introduction To Ip Addresses

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 1 IP Addresses Configuration 1.1 Introduction to IP Addresses IP is the core of the TCP/IP protocol suite. The packets of the Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Internet Control Message Protocol (ICMP), and Internet Group Membership Protocol (IGMP) are all transmitted in the format of IP datagrams.

  • Page 11: Configuring Ip Addresses For Interfaces

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 1 IP Addresses Configuration 1.3 Configuring IP Addresses for Interfaces Assigning an IP address to a device on a network enables the device to communicate with the other devices on the network.

  • Page 12: Optional) Configuring A Secondary Ip Address For An Interface

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 1 IP Addresses Configuration Procedure Step 1 Run: system-view The system view is displayed. Step 2 Run: interface vlanif vlan-id The VLANIF interface view is displayed. Step 3 Run: ip address ip-address { mask | mask-length } A primary IP address is configured.

  • Page 13: Configuration Examples

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 1 IP Addresses Configuration Procedure Run the display ip interface [ brief ] [ interface-type [ interface-number ] ] command to check the IP configuration on the interface. Run the display interface [ interface-type [ interface-number ] ] command to check interface information.
  • Page 14 Step 1 Set the IP address for VLANIF 100 where Ethernet 0/0/1 of the Switch belongs. <Quidway> system-view [Quidway] vlan 100 [Quidway-Vlan100] quit [Quidway] interface ethernet 0/0/1 [Quidway-Ethernet0/0/1] port hybrid pvid vlan 100 [Quidway-Ethernet0/0/1] port hybrid untagged vlan 100 [Quidway-Ethernet0/0/1] quit [Quidway] interface vlanif 100 [Quidway-Vlanif100] ip address 172.16.1.1 24 [Quidway-Vlanif100] ip address 172.16.2.1 24 sub...
  • Page 15 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 1 IP Addresses Configuration ip address 172.16.1.1 255.255.255.0 ip address 172.16.2.1 255.255.255.0 sub interface Ethernet0/0/1 port hybrid pvid vlan 100 port hybrid untagged vlan 100 return Issue 01 (2011-07-15) Huawei Proprietary and Confidential...

  • Page 16: Arp Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration ARP Configuration About This Chapter ARP can map an IP address to a MAC address and implements transmission of Ethernet frames. 2.1 Overview of ARP An Ethernet device must support ARP. ARP implements dynamic mapping between Layer 3 IP addresses and Layer 2 MAC addresses.

  • Page 17: Overview Of Arp

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration 2.1 Overview of ARP An Ethernet device must support ARP. ARP implements dynamic mapping between Layer 3 IP addresses and Layer 2 MAC addresses. Each host or device on the Local Area Network (LAN) can be configured a 32-bit IP address to communicate with others.

  • Page 18: Configuring Static Arp

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration The switch enabled with proxy ARP can also hide the details of the physical networks and implement the communication between hosts that are in different physical networks but on the same network segment.

  • Page 19: Configuring Common Static Arp Entries

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Pre-configuration Tasks Before configuring ARP, complete the following tasks: Configuring physical parameters for the interface and ensuring that the status of the physical layer of the interface is Up...

  • Page 20: Checking The Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Context If static ARP and the Virtual Router Redundancy Protocol (VRRP) are enabled on a device simultaneously, the virtual IP address of the VRRP backup group configured on the VLAN interface cannot be the IP address contained in the static ARP entries;...

  • Page 21: Establishing The Configuration Task

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration 2.4.1 Establishing the Configuration Task This section describes the applicable environment, pre-configuration tasks, data preparation, and configuration procedure for optimizing dynamic ARP. Applicable Environment Dynamic ARP is one of functions owned by a device or host. You do not need to run a command to enable dynamic ARP but you can modify some parameters of dynamic ARP.

  • Page 22: Enabling Arp Suppression Function

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration By default, the aging detection times of the dynamic ARP entries is three, and the aging timeout period is 1200 seconds. Step 5 Run: arp detect-mode unicast The interface is configured to send ARP Aging Detection packets in unicast mode.

  • Page 23: Configuring Routed Proxy Arp

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Prerequisite The configurations of the ARP function are complete. Procedure Run the display arp interface interface-type interface-number command to check information about ARP mapping tables based on interfaces.

  • Page 24: Configure An Ip Addresses For The Interface

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration 2.5.2 Configure an IP Addresses for the Interface The IP address assigned to a routed proxy ARP-enabled interface must be on the same network segment with the IP address of the host on the LAN to which this interface connects.

  • Page 25: Configuring Proxy Arp Within A Vlan

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Prerequisite The configurations of the routed proxy ARP function are complete. Procedure Run the display arp interface interface-type interface-number command to check information about ARP mapping tables based on interfaces.

  • Page 26: Configure An Ip Addresses For The Interface

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration 2.6.2 Configure an IP Addresses for the Interface The IP address assigned to an interface needs to be in the same network segment with the IP addresses of the users of the VLANs associated to this interface.

  • Page 27: Configuring Proxy Arp Between Vlans

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Prerequisite The configurations of the proxy ARP within a VLAN function are complete. Procedure Run the display arp interface interface-type interface-number command to check information about ARP mapping tables based on interfaces.

  • Page 28: Configuring An Ip Addresses For The Interface

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration 2.7.2 Configuring an IP Addresses for the Interface The IP address assigned to an interface needs to be in the same network segment with the IP addresses of the users of all the VLANs associated to this interface.

  • Page 29: Maintaining Arp

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Prerequisite The configurations of Proxy ARP Between VLANs are complete. Procedure Run the display arp interface interface-type interface-number command to check information about ARP mapping tables based on interfaces.

  • Page 30: Debugging Arp

    When faults occur during ARP operation, run the following debugging command in the user view to debug ARP and locate the fault. For more information, see chapter "Information Center Configuration" in the Quidway S2700 Series Ethernet Switches Configuration Guide-System Management. For descriptions about the debugging commands, see the Quidway S2700 Series Ethernet Switches Debugging Reference.
  • Page 31 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration GE 0/0/1 should be added to VLAN 2, and GE 0/0/2 should be added to VLAN 3. To adapt to fast changes of the network and ensure correct forwarding of packets, dynamic ARP parameters should be set on VLANIF 2 of the Switch.
  • Page 32 Step 3 Create a static ARP entry. # Create a static ARP entry with IP address 10.2.2.3, MAC address 00e0-fc01-0000, VLAN ID 3, and outgoing interface GE 0/0/2. [Quidway] arp static 10.2.2.3 00e0-fc01-0000 vid 3 interface gigabitethernet 0/0/2 [Quidway] quit Step 4 Verify the configuration.

  • Page 33: Example For Configuring Routed Proxy Arp

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Configuration Files The following is the configuration file of the Switch. sysname Quidway vlan batch 2 to 3 interface Vlanif2 ip address 2.2.2.2 255.255.255.0 arp expire-time 60...
  • Page 34 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Enable routed proxy ARP on the interface. Data Preparation To complete the configuration, you need the following data: IP addresses of the interfaces IP addresses of the hosts Procedure Step 1 Create VLAN 2 and add GE 0/0/1 to VLAN 2.

  • Page 35: Example For Configuring Intra-Vlan Proxy Arp

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration vlan batch 2 to 3 interface Vlanif2 ip address 172.16.1.1 255.255.255.0 arp-proxy enable interface Vlanif3 ip address 172.16.2.1 255.255.255.0 arp-proxy enable interface GigabitEthernet0/0/1 port link-type access port default vlan 2...
  • Page 36 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Create and configure a Super-VLAN and a Sub-VLAN. Add an interface to the Sub-VLAN. Create a VLANIF interface of the Super-VLAN and assign an IP address to the VLANIF interface.

  • Page 37: Example For Configuring Inter-Vlan Proxy Arp

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration [Quidway-Vlanif3] arp-proxy inner-sub-vlan-proxy enable [Quidway-Vlanif3] quit Step 4 Verify the configuration. # Run the display current-configuration command. You can view the configurations of the Super-VLAN, Sub-VLAN, and VLANIF interface. For query results, see the following configuration file.
  • Page 38 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Figure 2-4 Networking diagram for configuring inter-VLAN proxy ARP Switch VLAN2 VLAN3 VLAN4 VLAN2 VLAN3 Configuration Roadmap The configuration roadmap is as follows: Configure a Super-VLAN and a Sub-VLAN.
  • Page 39 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration [Quidway-Ethernet0/0/1] quit [Quidway] interface ethernet 0/0/2 [Quidway-Ethernet0/0/2] port link-type access [Quidway-Ethernet0/0/2] port default vlan 2 [Quidway-Ethernet0/0/2] quit # Configure Sub-VLAN 3. <Quidway> system-view [Quidway] vlan 3 [Quidway-vlan3] quit # Add Eth0/0/3 and Eth0/0/4 to Sub-VLAN 3.

  • Page 40: Example For Configuring Layer 2 Topology Detection

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Configuration Files The following lists the configuration file of the Switch. sysname Quidway vlan batch 2 to 4 vlan 4 aggregate-vlan access-vlan 2 to 3 interface Vlanif4 ip address 10.10.10.1 255.255.255.0...
  • Page 41 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration Configuration Roadmap The configuration roadmap is as follows: Add two GE interfaces to VLAN 100 in default mode. Enable Layer 2 topology detection and view changes of ARP entries.
  • Page 42 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 2 ARP Configuration IP ADDRESS MAC ADDRESS EXPIRE(M) TYPE INTERFACE VPN-INSTANCE VLAN ---------------------------------------------------------------------------- 10.1.1.2 00e0-c01a-4900 Vlanif100 10.1.1.3 00e0-de24-bf04 GE0/0/2 ------------------------------------------------------------------------------ Total:2 Dynamic:1 Static:0 Interface:1 NOTE According to the displayed information, the ARP entry learned from GE 0/0/1 is deleted after GE 0/0/1 is shut down.

  • Page 43: Ip Performance Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration IP Performance Configuration About This Chapter This chapter describes the basic concepts of IP performance, and provides configuration procedures and examples of IP performance. 3.1 Introduction to IP Performance On certain networks, you need to change IP parameters to optimize the performance of networks.

  • Page 44: Introduction To Ip Performance

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration 3.1 Introduction to IP Performance On certain networks, you need to change IP parameters to optimize the performance of networks. Here, IP performance parameters supported by the S2700 are described.

  • Page 45: Enabling An Interface To Check The Source Ip Addresses Of Packets

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration Setting parameters of the link layer protocol for the interfaces to ensure that the status of the link layer protocol on the interfaces is Up Assigning IP addresses to interfaces...

  • Page 46: Configuring Icmp Attributes

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration The interface is enabled to check the source IP addresses. By default, the function is disabled on all interfaces. ----End 3.3.3 Configuring ICMP Attributes Context By default, sending ICMP redirection packets and unreachable packets is enabled.

  • Page 47: Checking The Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration TCP FIN-Wait timer is an integer that ranges from 76 to 3600, in seconds. By default, the value is 675s. Size of the packet receive or transmit buffer: The value is an integer that ranges from 1 to 32, in Kbytes.

  • Page 48: Maintaining Ip Performance

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration Run the display fib [ slot-id ] [ verbose ] command to check information about the FIB table. Run the display fib acl acl-number [ verbose ] command to check information about the FIB entries that match ACL rules in a certain format.

  • Page 49: Monitoring The Running Status Of Ip Performance

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration 3.4.2 Monitoring the Running Status of IP Performance Context In routine maintenance, you can run the following command in any view to view the running status of IP performance.

  • Page 50: Configuration Examples

    3 IP Performance Configuration When an IP, TCP, UDP, RAWIP, or RAWLINK fault occurs, run the following debugging commands in the user view to locate the fault. For details on debugging commands, see the Quidway S2700 Series Ethernet Switches Debugging Reference. Procedure Run the debugging ip packet [ error ] [ acl acl-number ] [ verbose ] command in the user view to debug IP packets.
  • Page 51 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration Figure 3-1 Networking diagram for disabling the sending of ICMP host unreachable packets Ethernet0/0/2 Ethernet0/0/2 VLANIF11 VLANIF11 2.2.2.2/24 2.2.2.1/24 SwitchB Ethernet0/0/1 SwitchC VLANIF10 1.1.1.2/24 Ethernet0/0/1 VLANIF10 1.1.1.1/24...
  • Page 52 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration [SwitchA] ip route-static 2.2.2.0 24 1.1.1.2 Step 2 Configure Switch B. # Assign an IP address to VLANIF 10 on Switch B and disable the sending of ICMP host unreachable packets.
  • Page 53 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 3 IP Performance Configuration interface Ethernet0/0/1 port hybrid tagged vlan 10 ip route-static 2.2.2.0 255.255.255.0 1.1.1.2 return Configuration file of Switch B sysname SwitchB vlan batch 10 to 11 interface vlanif 10 ip address 1.1.1.2 255.255.255.0...

  • Page 54: Dns Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration DNS Configuration About This Chapter By configuring the Domain Name System (DNS), you can enable network devices to communicate with other through their domain names. 4.1 Introduction to DNS After each host on the Internet is assigned a domain name, you can set up a mapping between the domain name and IP address of a host through.

  • Page 55: Introduction To Dns

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration 4.1 Introduction to DNS After each host on the Internet is assigned a domain name, you can set up a mapping between the domain name and IP address of a host through. In this manner, you can use domain names, which are easy to memorize and are of significance, instead of complicated IP addresses.

  • Page 56: Configuring Static Dns Entries

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration Configuring physical attributes of the interface and ensuring that the physical layer status of the interface is Up Configuring parameters of the link layer protocol of the interface and ensuring that the link...

  • Page 57: Checking The Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration Procedure Step 1 Run: system-view The system view is displayed. Step 2 Run: dns resolve Dynamic domain name resolution is enabled. Step 3 Run: dns server ip-address A DNS server is specified.

  • Page 58: Maintaining Dns

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration Run the display dns dynamic-host command to check the information about dynamic DNS entries in the domain name cache. ----End Example Run the display ip host command. If static DNS entries including the mappings between host names and IP addresses, are displayed, it means that the configuration succeeds.

  • Page 59: Monitoring Network Operation Status Of Dns

    Run the following debugging command in the user view to debug DNS and locate the fault. For more information, refer to the chapter "Information Center Configuration" in the Quidway S2700 Series Ethernet Switches Configuration Guide - System Management. For descriptions about the debugging commands, refer to the Quidway S2700 Series Ethernet Switches Debugging Reference.

  • Page 60: Configuration Examples

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration 4.5 Configuration Examples This section provides a configuration example of DNS. 4.5.1 Example for Configuring DNS This section provides a configuration example of DNS. Networking Requirements As shown in...
  • Page 61 [SwitchA] quit NOTE To complete DNS resolution, configuring routes from Switch A to the DNS server is mandatory. For procedures for configuring routes, refer to the Quidway S2700 Series Ethernet Switches Configuration Guide - IP Routing. Step 2 Verify the configuration.
  • Page 62 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration <SwitchA> display dns dynamic-host Domain-name IpAddress Alias huawei.com 2.1.1.3 3579 NOTE TTL value in the above display indicates the lifetime of an entry. It is in seconds.
  • Page 63 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 4 DNS Configuration Configuration file of Switch C sysname SwitchC vlan batch 100 101 interface Ethernet0/0/1 port hybrid pvid vlan 100 port hybrid untagged vlan 100 interface Ethernet0/0/2 port hybrid pvid vlan 101...

  • Page 64: Basic Configurations Of Ipv6

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 Basic Configurations of IPv6 About This Chapter This chapter describes the basic concept and configurations of IPv6. 5.1 Introduction to IPv6 This section describes the basic principle of IPv6.

  • Page 65: Introduction To Ipv6

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 5.1 Introduction to IPv6 This section describes the basic principle of IPv6. Basic Concepts Internet Protocol Version 6 (IPv6), also called IP Next Generation (IPng), is the standard network protocol of 2nd generation.

  • Page 66: Ipv6 Neighbor Discovery

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 address for an interface. The link-local address manually set must be a valid link-local address (FE80::/10). Automatically generated link-local addresses are recommended because link-local addresses are used only for communications between link-local nodes usually to satisfy the communication request of protocols and irrelevant to communications between users.

  • Page 67: Configuring An Ipv6 Address For An Interface

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 5.3 Configuring an IPv6 Address for an Interface Assigning an IPv6 address to a device on a network enables the device to communicate with the other devices on the network.

  • Page 68: Enabling Ipv6 Packet Forwarding Capability

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 5.3.2 Enabling IPv6 Packet Forwarding Capability You can perform other IPv6 configurations on an interface only when IPv6 is enabled in the interface view. To enable IPv6 packet forwarding on an interface, you must configure IPv6 in the system view.

  • Page 69: Configuring An Ipv6 Global Unicast Address For An Interface

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 address of a link is valid only for the link. A packet with a link-local address as the source or destination address is forwarded only along the local link.

  • Page 70: Checking The Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 ipv6 address { ipv6-address prefix-length | ipv6-address/prefix-length } or ipv6 address { ipv6-address prefix-length | ipv6-address/prefix-length } eui-64 The global unicast address is configured on the interface.

  • Page 71: Configuring Static Neighbors

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 Data Number of interface which needs to be configured with IPv6 ND IPv6 address and MAC address of the static neighbor Intervals, prefix, and life duration of RA messages...

  • Page 72: Setting The Interval For Advertising Ra Messages

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 Procedure Step 1 Run: system-view The system view is displayed. Step 2 Run: interface vlanif vlan-id The VLANIF interface view is displayed. Step 3 Run: ipv6 enable You can enable the IPv6 capability.

  • Page 73: Enabling Stateful Auto Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 5.4.5 Enabling Stateful Auto Configuration After being enabled with stateful auto-configuration, the host can obtain an IPv6 address through stateful auto-configuration, for example, the DHCP server.

  • Page 74: Configuring Other Information To Be Advertised

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 You can enable the IPv6 capability. Step 4 Run: ipv6 nd ra prefix { ipv6-address ipv6-prefix-length | ipv6-prefix/ipv6-prefix- length } valid-lifetime preferred-lifetime [ no-autoconfig ] [ off-link ] The prefix of RA messages is configured.

  • Page 75: Checking The Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 NOTE l When the ipv6 nd ra command is run to set the interval for advertising RA messages, the interval must be less than or equal to the life duration.

  • Page 76: Maintaining Ipv6

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 -------------------------------------------------------- IPv6 Address : 3003::2 Link-layer : 00e0-fc89-fe6e State : STALE Interface : VLANIF10 VLAN IPv6 Address : FE80::2E0:FCFF:FE89:FE6E Link-layer : 00e0-fc89-fe6e State : STALE...

  • Page 77: Monitoring The Running Status Of Ipv6

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 5.5.2 Monitoring the Running Status of IPv6 Context In routine maintenance, you can run the following commands in any view to display the running of IPv6.

  • Page 78: Configuration Examples

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 Run the debugging ipv6 nd command in the user view to debug IPv6 neighbors status and ND messages. Run the debugging ipv6 packet [ error ] [ acl acl-number ] command in the user view to debug IPv6 packet.
  • Page 79 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 Global unicast address of an interface Procedure Step 1 Enable the IPv6 forwarding capability on the Switch. # Configure Switch A. <Quidway> system-view [Quidway] sysname SwitchA [SwitchA] ipv6 # Configure Switch B.
  • Page 80 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 ND retransmit interval is 1000 milliseconds Hosts use stateless autoconfig for addresses # Display information about the interface on Switch B. [SwitchB] display ipv6 interface vlanif 100...
  • Page 81 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 5 Basic Configurations of IPv6 Configuration Files Configuration file of Switch A sysname SwitchA ipv6 vlan 100 interface Vlanif100 ipv6 enable ipv6 address 3001::1/64 interface Ethernet0/0/1 port hybrid pvid vlan 100...

  • Page 82: Ipv6 Dns Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration IPv6 DNS Configuration About This Chapter By configuring the IPv6 Domain Name System (DNS), you can enable network devices to communicate with other through their domain names.

  • Page 83: Introduction To Ipv6 Dns

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration 6.1 Introduction to IPv6 DNS After each host on the Internet is assigned a domain name, you can set up mapping between the domain name and IP address of a host. In this manner, you can use domain names, which are easy to memorize and are of significance, instead of complicated IP addresses.

  • Page 84: Configuring A Static Ipv6 Dns Entry

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration Data Domain name of the static IPv6 DNS entry and the corresponding IPv6 address IPv6 address of the IPv6 DNS server Domain name of the dynamic IPv6 DNS or the domain name list 6.3.2 Configuring a Static IPv6 DNS Entry...

  • Page 85: Checking The Configuration

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration CAUTION If multiple DNS servers are configured, the servers are queried in the order of configuration till proper response is received. If both IPv4 and IPv6 servers are configured, the A query is first sent to the IPv4 server, while AAAA query packets are first sent to the IPv6 server.

  • Page 86: Maintaining Ipv6 Dns

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration Procedure Run the display ipv6 host command to check the static IPv6 DNS table. Run the display dns server command to check the configuration of the DNS server.

  • Page 87: Monitoring Network Operation Status Of Ipv6 Dns

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration Context CAUTION IPv6 DNS entries cannot be restored after being cleared. So, confirm the action before you use this command. Procedure Step 1 Run the reset dns ipv6 dynamic-host command in the user view to clear dynamic IPv6 DNS entries statistics in the domain name cache.

  • Page 88: Networking Requirements

    Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration Networking Requirements As shown in Figure 6-2, Switch A, functioning as the IPv6 DNS client and working jointly whose IPv6 DNS server, can access the host with the IP address as 2002::1/64 based on the domain name huawei.com.
  • Page 89 To resolve the domain name, you also need to configure the route from Switch A to the IPv6 DNS server. For details of how to configure the route, see Configuration example of IP static route in the Quidway S2700 Series Ethernet Switches Configuration Guide - IP Routing.
  • Page 90 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration Configuration Files Configuration file of Switch A sysname SwitchA vlan batch 100 ipv6 ipv6 host SwitchB 2001::2 ipv6 host SwitchC 2002::3 dns resolve dns server ipv6 2003::2...
  • Page 91 Quidway S2700 Series Ethernet Switches Configuration Guide - IP Service 6 IPv6 DNS Configuration interface vlanif100 ipv6 enable ipv6 address 2002::3/64 interface vlanif101 ipv6 enable ipv6 address 2003::1/64 return Issue 01 (2011-07-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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