snmpwalk 语法

1 背景
snmpwalk是SNMP的一个工具，它使用SNMP的GETNEXT请求查询指定OID（SNMP协议中的对象标识）入口的所有OID树信息，并显示给用户。通过snmpwalk也可以查看支持SNMP协议（可网管）的设备的一些其他信息，比如cisco交换机或路由器IP地址、内存使用率等。

https://cloud.tencent.com/developer/article/1366179

1.1 命令语法

D:\soft\SnmpWalk>  SnmpWalk.exe
SnmpWalk v1.01 - Copyright (C) 2009 SnmpSoft Company
[ More useful network tools on http://www.snmpsoft.com ]

Description:
  Lists existing SNMP variables on any network device that supports SNMP.
  SNMP is widely used for administration and monitoring purposes.

Usage:
  SnmpWalk.exe [-q] -r:host [-p:port] [-t:timeout] [-v:version] [-c:community]
        [-ei:engine_id] [-sn:sec_name] [-ap:auth_proto] [-aw:auth_passwd]
        [-pp:priv_proto] [-pw:priv_passwd] [-ce:cont_engine] [-cn:cont_name]
                [-os:start_oid] [-op:stop_oid] [-csv]

   -q               Quiet mode (suppress header; print variable values only).
   -r:host          Name or network address (IPv4/IPv6) of remote host.
   -p:port          SNMP port number on remote host. Default: 161
   -t:timeout       SNMP timeout in seconds (1-600). Default: 5
   -v:version       SNMP version. Supported version: 1, 2c or 3. Default: 1
   -c:community     SNMP community string for SNMP v1/v2c. Default: public
   -ei:engine_id    Engine ID. Format: hexadecimal string. (SNMPv3).
   -sn:sec_name     SNMP security name for SNMPv3.
   -ap:auth_proto   Authentication protocol. Supported: MD5, SHA (SNMPv3).
   -aw:auth_passwd  Authentication password (SNMPv3).
   -pp:priv_proto   Privacy protocol. Supported: DES, IDEA, AES128, AES192,
                    AES256, 3DES (SNMPv3).
   -pw:priv_passwd  Privacy password (SNMPv3).
   -cn:cont_name    Context name. (SNMPv3)
   -ce:cont_engine  Context engine. Format: hexadecimal string. (SNMPv3)
   -os:start_oid    Object ID (OID) of first SNMP variable to walk. Default:.1
   -op:stop_oid     Object ID (OID) of last SNMP variable to walk.
                    Default: walk to the very last variable.
   -csv             Output in CSV (Comma Separated Values) format.


Examples:
  SnmpWalk.exe -r:MainRouter -csv
  SnmpWalk.exe -r:10.0.0.1 -t:10 -c:"admin_rw" -os:.1.3.6.1.2.1.1
  SnmpWalk.exe -r:"::1" -v:3 -sn:SomeName -ap:MD5 -aw:SomeAuthPass -pp:DES
               -pw:SomePrivPass -os:.1.3.6.1.2.1 -op:.1.3.6.1.2.65535 -q


D:\soft\SnmpWalk>

1.2 操作Example

获取 10.248.1.100 这台主机的OID
Community为 cisco@123
版本为: v2c

D:\soft\SnmpWalk> SnmpWalk.exe -r:10.248.1.100  -c:cisco@123 -v:2c
SnmpWalk v1.01 - Copyright (C) 2009 SnmpSoft Company
[ More useful network tools on http://www.snmpsoft.com ]

OID=.1.0.8802.1.1.2.1.1.1.0, Type=Integer, Value=30
OID=.1.0.8802.1.1.2.1.1.2.0, Type=Integer, Value=4
OID=.1.0.8802.1.1.2.1.1.3.0, Type=Integer, Value=2
OID=.1.0.8802.1.1.2.1.1.4.0, Type=Integer, Value=2
OID=.1.0.8802.1.1.2.1.1.5.0, Type=Integer, Value=5
OID=.1.0.8802.1.1.2.1.1.6.1.2.83886080, Type=Integer, Value=3
OID=.1.0.8802.1.1.2.1.1.6.1.2.436207616, Type=Integer, Value=3
OID=.1.0.8802.1.1.2.1.1.6.1.2.436208128, Type=Integer, Value=3
OID=.1.0.8802.1.1.2.1.1.6.1.2.436208640, Type=Integer, Value=3
OID=.1.0.8802.1.1.2.1.1.6.1.2.436209152, Type=Integer, Value=3
OID=.1.0.8802.1.1.2.1.1.6.1.3.436225536, Type=Integer, Value=2
OID=.1.0.8802.1.1.2.1.1.6.1.3.436226048, Type=Integer, Value=2

1.3 下面是执行失败的示例

D:\soft\SnmpWalk> SnmpWalk.exe -r:10.248.1.101  -c:cisco@123  -v:2c
SnmpWalk v1.01 - Copyright (C) 2009 SnmpSoft Company
[ More useful network tools on http://www.snmpsoft.com ]

%Failed to get value of SNMP variable. Timeout.

D:\soft\SnmpWalk>