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Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R011C10

This document describes IP Unicast Routing configurations supported by the switch, including the principle and configuration procedures of IP Routing Overview, Static Route, RIP, RIPng, OSPF, OSPFv3, IS-IS(IPv4), IS-IS(IPv6), BGP, Routing Policy ,and PBR, and provides configuration examples.

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Configuring an Area Authentication Mode

Configuring an Area Authentication Mode


In area authentication, all the switches in an area must use the same area authentication mode and password. For example, all switches in Area 0 are configured to use simple authentication and a password of abc.

If plain is selected, the password is saved in plaintext in the configuration file. To improve security, select cipher to save the password in ciphertext.

Simple, MD5 authentication, and HMAC-MD5 cipher text authentication have potential security risks. HMAC-SHA256 ciphertext authentication is recommended.


  1. Run system-view

    The system view is displayed.

  2. Run ospf [ process-id ]

    The OSPF process view is displayed.

  3. Run area area-id

    The OSPF area view is displayed.

  4. Run any of the following commands to configure an authentication mode for the OSPF area as required:

    • Run authentication-mode simple [ plain plain-text | [ cipher ] cipher-text ]

      Simple authentication is configured for the OSPF area.

      • plain indicates that the password is stored in plaintext.
      • cipher indicates the password is stored in ciphertext. For MD5 or HMAC-MD5 authentication, the authentication mode is in ciphertext by default.
    • Run authentication-mode { md5 | hmac-md5 | hmac-sha256 } [ key-id { plain plain-text | [ cipher ] cipher-text } ]

      An authentication mode is configured for the OSPF area.

      • md5 indicates that the MD5 ciphertext authentication mode is used.

      • hmac-md5 indicates that the HMAC-MD5 ciphertext authentication mode is used.
      • hmac-sha256 indicates that the HMAC-SHA256 ciphertext authentication mode is used.
      • key-id specifies the authentication key ID of the cipher authentication.
    • Run authentication-mode keychain keychain-name

      Keychain authentication is configured for the OSPF area.


      Before using Keychain authentication, configure Keychain information in the system view. To successfully establish an OSPF neighbor relationship, ensure that the key-id, algorithm, and key-string of the local ActiveSendKey are the same as those of the remote ActiveRecvKey.

Updated: 2019-10-18

Document ID: EDOC1000178324

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