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  3. snmp v3 не работает?

snmp v3 не работает?

Scheduled Pinned Locked Moved Support (Russian)
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  • T
    T
    tarkvsg
    wrote on last edited by
    #1

    Добрый день, подключаю коммутатор от хуавея по snmpv3.
    И не могу. Eсли пробовать подключиться через
    nxsnmpget -u USER -v 3 -a SHA1 -A PASSWD -e AES -E PASSWD 192.168.0.1  1.3.6.1.4.1
    получаю ошибку "SNMP Error: Decryption error", а на железке - decoded PDU error"

    в то же время если спросить через
    snmpget -u USER -v 3 -l authPriv -a SHA1 -A PASSWD -e AES -E PASSWD 192.168.0.1  1.3.6.1.4.1

    • все отрабатывает на ура.

    версия netxms - 5.2.1

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    • A
      A
      Alex Kirhenshtein
      wrote on last edited by
      #2

      Похоже на баг, или в прошивке, или у нас. Я только что проверил на микротике и циске - там всё стабильно работает. Что это за устройство, и какая там стоит прошивка?

      И попробуйте nxsnmpwalk, возможно устройство не понимает запрос на несуществующий OID?
      1.3.6.1.4.1 - это вся ветка private, ее нельзя запросить гетом.

      Пример, как я проверял:

      [admin@MikroTik] /snmp/community> add name=v3user addresses=::/0 authentication-password=UFDz3XGjYUhVEjTS encryption-password=ZwtM5KlwSsVQxsyc authentication-protocol=SHA1 encryption-protocol=AES security=private read-access=yes write-access=no
      
      ❯ nxsnmpget -a SHA1 -A UFDz3XGjYUhVEjTS -e AES -E ZwtM5KlwSsVQxsyc -u v3user -v 3 10.40.4.18 1.3.6.1.2.1.1.1.0
      1.3.6.1.2.1.1.1.0 [STRING]: RouterOS RB5009UPr+S+
      
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      • T
        T
        tarkvsg
        wrote on last edited by
        #3

        Все-таки v3 работает, когда на коммутаторе прописан протокол шифрования AES-128, а не рекомендованный AES-256

        vsg@netxms:~$  nxsnmpget -a SHA1 -A PASS -e AES -E PASS -u USER -v 3 192.168.0.246 1.3.6.1.2.1.1.1.0
        1.3.6.1.2.1.1.1.0 [STRING]: S5731-S48P4X
        Huawei Versatile Routing Platform Software
         VRP (R) software,Version 5.170 (S5731 V200R022C00SPC500)
         Copyright (C) 2007 Huawei Technologies Co., Ltd.
        
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