Use the TACACS+ Source Interface Configuration page to specify the physical or logical interface to use as the TACACS+ client source interface. When an IP address is configured on the source interface, this address is used for all TACACS+ communications between the local TACACS+ client and the remote TACACS+ server. The IP address of the designated source interface is used in the IP header of TACACS+ management protocol packets. This allows security devices, such as firewalls, to identify all source packets coming from a specific device.
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TACACS+ Source Interface Configuration Fields
| Field | Description |
|---|---|
| Type | The type of interface to use as the source interface:
|
| Interface | When the selected Type is Interface, select the physical port to use as the source interface. |
| VLAN ID | When the selected Type is VLAN, select the VLAN to use as the source interface. The menu contains only the VLAN IDs for VLAN routing interfaces. |
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