snmp | 易学教程

Implementing a custom MIB in a PySNMP agent

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问题 I'm having difficulty implementing a custom MIB in a PySNMP agent. I've started with: http://pysnmp.sourceforge.net/examples/4.x/v3arch/agent/cmdrsp.html created my own MIB file, used build-pysnmp-mib to make a Python module and successfully imported the symbol. I can't see where to go next. I need to somehow mount the imported symbol on the list of served MIBs and provide an implementation. (It's currently a MIB with one read-only INTEGER property.) The MIB file passes smilint without

使用snmp4j通过snmpv3协议获取指标

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参考： https://blog.csdn.net/zhouzhiwengang/article/details/46816371 ，本文对此又做了精进先说一下参考链接中没提到的点： 1、通过snmp.getUSM()获取到的USM实例是同一个，因此不要在多线程并发中去往USM中添加用户或修改，否则有时会报找不到securityName的异常，在stackoverflow上有相关问题 2、USM有三种添加用户的方法，其中通过engineID的方式添加的时候，再获取时候也要通过engineID+name去获取，在参考中体现在，设置target的时候要设置AuthoritativeEngineID，否则在执行时查询USM会报找不到securityName //加上这句 target.setAuthoritativeEngineID(new OctetString("0002651100").getValue()); 下面是我自己测试时用到代码段，可以修改调试一下，加深理解： package com.moon.test3; import java.io.IOException; import java.util.List; import java.util.Vector; import java.util.concurrent.TimeUnit; import org.snmp4j

Send trap v2 in Java

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问题 How can I send snmpv2 traps from Java application. I tried to do example on snmp4j, but it didn't work. 回答1: I use SNMP4J for this. This javadoc might help you write your code. You can use the Snmp.trap() method Edit: Well, I dont have code of my own at this moment, but you may refer this one . You have to use Snmp.notify() for sending V2 trap instead of Snmp.trap() as trap() only supports sending V1 traps. 回答2: It took me some time but I finally figured out how to use SNMP4J to send a trap:

H3C SNMP配置解析

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华为交换机snmp配置 snmp-agent /使能snmp服务/ snmp-agent local-engineid 000007DB7F000001000049DD /系统自动生成，无需配置/ snmp-agent community read public /设置读团体名:public/ snmp-agent community write private /设置写团体名:private/ snmp-agent sys-info contact Mr.Wang-Tel:3306 /设置联系方式/ snmp-agent sys-info location 3rd-floor /设置设备位置/ snmp -agent sys-info version v1 v3 / 配置 snmp 版本允许V1（默认只允许 v3 ）/ snmp-agent target-host trap address udp-domain 129.102.149.23 udp-port 5000 par ams securityname public /允许向网管工作站（NMS）129.102.149.23发送Trap报文，使用的团体名为public/ （1） snmp-agent sys-info contact <string>设置管理员的标识及联系邮箱方法，请把替换为你要设置成的值，下同

Implementing SNMP SendTrap using Indy components

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问题 I need to report errors from my application on C++Builder via SNMP. I started implementing SNMP SendTrap using Indy components. void __fastcall TMainForm::btSendTrapClick(TObject *Sender) { UnicodeString myEnterprise = "1.5.5.5.5.5.5.5"; UnicodeString eventType = "1.5.5.5.5.5.5.5.1"; UnicodeString eventDistance = "1.5.5.5.5.5.5.5.2"; TIdSNMP * idSnmp = 0; TSNMPInfo * infoSnmp = 0; idSnmp = new TIdSNMP(NULL); infoSnmp = new TSNMPInfo(idSnmp); idSnmp->Host = edHost->Text; idSnmp->Community =

ASN.1 compiler error token “SYNTAX” unexpected

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问题 I'm currently trying to compile a snippet of ASN.1 code. It looks as follows: RFC1213-MIB DEFINITIONS ::= BEGIN IMPORTS experimental FROM RFC1155-SMI OBJECT-TYPE FROM RFC-1212; mypersonaltest OBJECT IDENTIFIER ::= { experimental 1 } tester OBJECT-TYPE SYNTAX INTEGER ACCESS read-write STATUS optional DESCRIPTION "This is a test" ::= { mypersonaltest 1 } END Now I'm always getting an error on the line SYNTAX INTEGER : ASN.1 grammar parse error near line 9 (token "SYNTAX"): syntax error,

SNMPv3 Discovery

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问题 I have use SNMP v1 and 2c for network discovery of printers by sending broadcast message with community "public" and it works just fine, but when I send broadcast message with version 3 of the protocol I got timeout error. Do somebody share example of SNMPv3 device discovery? Thank you. 回答1: Two things: 1) Doing a broadcast SNMPv1/v2c is actually not defined to work in the protocol. Cheap implementations will simply respond, as you've found, to any packet it sees that the kernel accepts to

SNMPv3 Discovery

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How do I collect bandwidth utilization data on remote devices/switches/servers?

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问题 How do I collect bandwidth usage/utilzation on devices/switches. From what I understand there are systems that do something like this. They seem to all have snmp in common. I am looking for imformation on possibly rolling my own system for collecting this data that will be later used on a web-based front-end. For a real-world but perhaps a bit over complicated example of what I'm talking about take a look at ubersmith de. Most of it will be in a LAMP environment. Thanks. 回答1: On pure SNMP

Zabbix实战-简易教程--监控OSPF

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一、需求背景网络工程师需要对OSPF进行监控，需求如下： 1、状态展示 OSPF区域状态 OSPF接口状态 OSPF邻居状态 2、问题报警触发器设置： a、OSPF区域状态 b、OSPF接口状态 c、OSPF邻居状态不是full状态就报警二、准备工作 1、新建mapping（3个：SNMP OSPF Admin Status、SNMP OSPF Area Status、SNMP OSPF Neighbor State (ospfNbrState)） 2、导入模板（Template SNMP Router OSPF） 3、server上提供OSPF mib文件（OSPF-MIB.mib ），存放路径 /usr/share/snmp/mibs http://www.oidview.com/mibs/0/OSPF-MIB.html 三、故障排错 1、自动发现不支持Invalid SNMP OID:cannot parse expression. 原因1、zabbix3.0版本的lld有变化原因2、server（proxy）上没有OSPF mib文件解决办法：因为3.0版本LLD有变化，The OIDs to discover are defined in SNMP OID field in the following format: discovery[{#MACRO1},