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Find the interface of unknown IP

Created: Nov 30, 2021 11:45:06Latest reply: Nov 30, 2021 11:45:37 191 1 0 0 0
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Hello everyone,

Our company is using the S5720 switch. Because an unknown IP address is connected to the network, we want to find the port through which the IP address is sent, and ask for technical support. 

Thank you.


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DDSN
Admin Created Nov 30, 2021 11:45:37

Hi Planck,

You can execute the command display arp or display mac-address to check the connected devices. Please refer to the examples below:

[Huawei-Vlanif2]display arp
IP ADDRESS      MAC ADDRESS     EXPIRE(M) TYPE INTERFACE      VPN-INSTANCE     
                                          VLAN
------------------------------------------------------------------------------
10.1.1.1        4c1f-ccb0-5615            I -  Vlanif1
10.1.2.1        4c1f-ccb0-5615            I -  Vlanif2
------------------------------------------------------------------------------
Total:2         Dynamic:0       Static:0     Interface:2   
[Huawei-Vlanif2]dis mac-address
MAC address table of slot 0:
-------------------------------------------------------------------------------
MAC Address    VLAN/       PEVLAN CEVLAN Port            Type      LSP/LSR-ID 
               VSI/SI                                              MAC-Tunnel 
-------------------------------------------------------------------------------
xxxx-xxxx-xxxx 1           -      -      Eth0/0/2        dynamic   0/-        
yyyy-yyyy-yyyy 1           -      -      Eth0/0/1        dynamic   0/-        
-------------------------------------------------------------------------------
Total matching items on slot 0 displayed = 2


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DDSN
DDSN Admin Created Nov 30, 2021 11:45:37

Hi Planck,

You can execute the command display arp or display mac-address to check the connected devices. Please refer to the examples below:

[Huawei-Vlanif2]display arp
IP ADDRESS      MAC ADDRESS     EXPIRE(M) TYPE INTERFACE      VPN-INSTANCE     
                                          VLAN
------------------------------------------------------------------------------
10.1.1.1        4c1f-ccb0-5615            I -  Vlanif1
10.1.2.1        4c1f-ccb0-5615            I -  Vlanif2
------------------------------------------------------------------------------
Total:2         Dynamic:0       Static:0     Interface:2   
[Huawei-Vlanif2]dis mac-address
MAC address table of slot 0:
-------------------------------------------------------------------------------
MAC Address    VLAN/       PEVLAN CEVLAN Port            Type      LSP/LSR-ID 
               VSI/SI                                              MAC-Tunnel 
-------------------------------------------------------------------------------
xxxx-xxxx-xxxx 1           -      -      Eth0/0/2        dynamic   0/-        
yyyy-yyyy-yyyy 1           -      -      Eth0/0/1        dynamic   0/-        
-------------------------------------------------------------------------------
Total matching items on slot 0 displayed = 2


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