NET0994 - Management interface is assigned to a user VLAN - 'MGMT VLAN ID'

Information

The management interface is an access switchport and has not been assigned to a separate management VLAN.

The OOBM access switch will connect to the management interface of the managed network elements. The management interface can be a true OOBM interface or a standard interface functioning as the management interface. In either case, the management interface of the managed network element will be directly connected to the OOBM network. If the device does not have an OOBM port, the interface functioning as the management interface must be configured so that management traffic does not leak into the managed network and that production traffic does not leak into the management network.

NOTE: This check is derived from the L3 switch guidance, if the scan target is a router the check can be ignored.
NOTE: Change 'MANAGEMENT_INTERFACE_PORT' to the used to connected to the management VLAN.
NOTE: Change 'MGMT_VLAN_ID' to the VLAN associated with carrying your management traffic.

Solution

If the management interface is an access switchport, assign it to a separate management VLAN while the remainder of the access switchports can be assigned to user VLANs belonging to the managed network. This provides some level of separation between the management network and the managed network.

See Also

https://iasecontent.disa.mil/stigs/zip/U_Network_Perimeter_Router_L3_Switch_V8R32_STIG.zip

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-7(15), CAT|II, Rule-ID|SV-19078r1_rule, STIG-ID|NET0994, Vuln-ID|V-17824

Plugin: Cisco

Control ID: fa368751e4f8a974372d932fd18c90825512fdd9960ca91aafd0a117f353d913