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RoMON stands for "Router Management Overlay Network". RoMON works by establishing an independent MAC layer peer discovery and data forwarding network. RoMON packets are encapsulated with EtherType 0x88bf and DST-MAC 01:80:c2:00:88:bf and its network operate independently from of L2 or L3 forwarding configuration. When RoMON is enabled, any received RoMON packets will not be displayed by sniffer or torch tools.

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RoMON protocol does not provide encryption services. Encryption is provided at the "application" level, by e.g. using ssh or by using a secure WinboxWinBox.

Secrets

RoMON protocol secrets are used for message authentication, integrity check and replay prevention by means of hashing message contents with MD5.

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Code Block
languageros
[admin@MikroTik] > /tool/romon/discover 
Flags: A - active
Columns: ADDRESS, COStCOST, HopsHOPS, PATH, L2MTuL2MTU, IDENTITY, VERSION, BOARD
   ADDRESS            COS  H  PATH               L2MT  IDENTITY   VERSION    BOARD              
A  6C:3B:6B:48:0E:8B  200  1  6C:3B:6B:48:0E:8B  1500  hEX        6.47beta7  RB750Gr3           
A  6C:3B:6B:ED:83:69  200  1  6C:3B:6B:ED:83:69  1500  CCR1009    6.47beta7  CCR1009-7G-1C-1S+  
A  B8:69:F4:B3:1B:D2  200  1  B8:69:F4:B3:1B:D2  1500  4K11       6.47beta7  RB4011iGS+5HacQ2HnD
A  CC:2D:E0:26:22:4D  200  1  CC:2D:E0:26:22:4D  1500  CCR1036    6.47beta7  CCR1036-8G-2S+     
A  CC:2D:E0:8D:01:88  200  1  CC:2D:E0:8D:01:88  1500  CRS328     6.47beta7  CRS328-24P-4S+     
A  E4:8D:8C:1C:D3:0E  200  1  E4:8D:8C:1C:D3:0E  1500  MikroTik   6.47beta7  RB2011iLS          
A  E4:8D:8C:49:49:DB  200  1  E4:8D:8C:49:49:DB  1500  hAP        6.47beta7  RB962UiGS-5HacT2HnT

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Code Block
languageros
[admin@MikroTik] > /tool/romon/port/print
Flags: * - default
Columns: INTERFaceINTERFACE, FOrbidFORBID, COStCOST
#     INTERF  FO  COS
0  *  all     no  100
1     ether7  no  200

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Code Block
languageros
[admin@MikroTik] > /tool/romon/ssh 6C:3B:6B:48:0E:8B

Run RoMON in

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WinBox by using CLI

In order to establish the RoMON session directly by using the command line on a computer, you must specify RoMON agents and desired routers addresses. RoMON agent must be saved on Managed routers list in Winbox WinBox in order to make a successful connection: 

Code Block
languageros

winbox.exe --romon 192.168.88.1 6C:3B:6B:48:0E:8B admin ""

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