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31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
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This is attempt to get vlans information from Mikrotik RouterOS.
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# Installation
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Installation is very simple. On mikrotik we need:
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1. one script, named "LNMS_vlans"
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2. snmp community with write permission
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Copy the scripts from librenms-agent/snmp/Routeros and place in /system/scripts
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Set snmp community to have WRITE permission in /snmp/community
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It is strongly recomended that snmp allowed address is narrowed down to /32 because write permission could allow attack on device
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Theory of operation:
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Mikrotik vlan discovery plugin using ability of ROS to "fire up" a script trough SNMP
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At first, LibreNMS check for existence of script, and if it present, it will be started
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Sript try to gather information from:
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a. /interface/bridge/vlan for tagged ports inside bridge
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b. /interface/bridge/vlan for currently untagged ports inside bridge
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c. /interface/bridge/port for ports PVID (untagged) inside bridge
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d. /interface/vlan for plain (old style) vlans
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after information is gathered, it is transmitted to LibreNMS over SNMP
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protocol is:
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type,vlanId,ifName <cr>
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i.e:
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T,254,ether1 is translated to Tagged vlan 254 on port ether1
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U,100,wlan2 is translated to Untagged vlan 100 on port wlan2
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