来自管理 LIF 的不需要的 SNMP 出站流量

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适用场景

ONTAP 9
AFF / FAS
SNMP

问题描述

在某些设备上、 SNMPSNMP 接收到意外流量或身份验证错误。
流量源可以是节点管理LIF、也可以是集群管理LIF。
此类不需要的流量被视为安全问题描述。

Sep 10, 2022, 8:33:15 PM IOS @ 10.xx.xx.1 <131>4231: ]: Sep 10 20:33:14: %SNMP-3-AUTHFAIL: Authentication failure for SNMP req from host 10.xx.xx.2 Sep 10, 2022, 8:31:35 PM IOS @ 10.xx.xx.1 <131>4230: ]: Sep 10 20:31:34: %SNMP-3-AUTHFAIL: Authentication failure for SNMP req from host 10.xx.xx.2 Sep 10, 2022, 8:30:13 PM IOS @ 10.xx.xx.1 <131>4229: ]: Sep 10 20:30:12: %SNMP-3-AUTHFAIL: Authentication failure for SNMP req from host 10.xx.xx.2 Sep 10, 2022, 8:29:00 PM IOS @ 10.xx.xx.1 <131>4228: ]: Sep 10 20:28:59: %SNMP-3-AUTHFAIL: Authentication failure for SNMP req from host 10.xx.xx.2 Sep 10, 2022, 8:27:55 PM IOS @ 10.xx.xx.1 <131>4227: ]: Sep 10 20:27:54: %SNMP-3-AUTHFAIL: Authentication failure for SNMP req from host 10.xx.xx.2 Sep 10, 2022, 8:26:15 PM IOS @ 10.xx.xx.1 <131>4226: ]: Sep 10 20:26:14: %SNMP-3-AUTHFAIL: Authentication failure for SNMP req from host 10.xx.xx.2

或

09/08/22 09:47:46 00236 snmp: Security access violation from 192.xx.xx.4 for the community name or user name : cshm1! (11 times in 60 seconds)