The RUCKUS ICX switch must implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-273696	SRG-NET-000715-L2S-000120	RCKS-L2S-000300	SV-273696r1110998_rule	2025-06-03	1

Description
Separating critical system components and functions from other noncritical system components and functions through separate subnetworks may be necessary to reduce susceptibility to a catastrophic or debilitating breach or compromise that results in system failure. For example, physically separating the command and control function from the in-flight entertainment function through separate subnetworks in a commercial aircraft provides an increased level of assurance in the trustworthiness of critical system functions. Satisfies: SRG-NET-000715-L2S-000120, SRG-NET-000760-L2S-000160

Description

Separating critical system components and functions from other noncritical system components and functions through separate subnetworks may be necessary to reduce susceptibility to a catastrophic or debilitating breach or compromise that results in system failure. For example, physically separating the command and control function from the in-flight entertainment function through separate subnetworks in a commercial aircraft provides an increased level of assurance in the trustworthiness of critical system functions. Satisfies: SRG-NET-000715-L2S-000120, SRG-NET-000760-L2S-000160

ℹ️ Check
Review the RUCKUS ICX switch configuration. Router# Show Vlans PORT-VLAN 5, Name Organization_A, Priority level0, in single spanning tree domain Untagged Ports: None 2 Tagged Ports: (U1/M1) 4 6 8 10 12 14 Mac-Vlan Ports: None Monitoring: Disabled PORT-VLAN 10, Name Organization_B, Priority level0, in single spanning tree domain Untagged Ports: None 20 21 22 Tagged Ports: (U1/M1) 1 3 5 7 9 11 Mac-Vlan Ports: None Monitoring: Disabled PORT-VLAN 12, Name IP_Phone, Priority level0, in single spanning tree domain Untagged Ports: None Tagged Ports: (U1/M1) 30 31 32 33 34 35 Mac-Vlan Ports: None Monitoring: Disabled If the RUCKUS ICX switch is not configured to implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions, this is a finding.

ℹ️ Check

Review the RUCKUS ICX switch configuration. Router# Show Vlans PORT-VLAN 5, Name Organization_A, Priority level0, in single spanning tree domain Untagged Ports: None 2 Tagged Ports: (U1/M1) 4 6 8 10 12 14 Mac-Vlan Ports: None Monitoring: Disabled PORT-VLAN 10, Name Organization_B, Priority level0, in single spanning tree domain Untagged Ports: None 20 21 22 Tagged Ports: (U1/M1) 1 3 5 7 9 11 Mac-Vlan Ports: None Monitoring: Disabled PORT-VLAN 12, Name IP_Phone, Priority level0, in single spanning tree domain Untagged Ports: None Tagged Ports: (U1/M1) 30 31 32 33 34 35 Mac-Vlan Ports: None Monitoring: Disabled If the RUCKUS ICX switch is not configured to implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions, this is a finding.

✔️ Fix
Configure the layer 2 switch to implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions. 1. Add appropriate VLAN by name. device# configure terminal Router(config)#vlan 5 Name Organization_A Router(config)#vlan 10 Name Organization_B Router(config)#vlan 10 Name IP_Phone 2. Add untagged Ports for the specific ports to the VLANs as needed. Router(config-vlan-5)#untag ethernet 1/1/2 3. Add tagged ports. Router(config-vlan-5)#tag ethernet 1/1/4 4. Save the configuration. Router(config-vlan-5)#write memory

✔️ Fix

Configure the layer 2 switch to implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions. 1. Add appropriate VLAN by name. device# configure terminal Router(config)#vlan 5 Name Organization_A Router(config)#vlan 10 Name Organization_B Router(config)#vlan 10 Name IP_Phone 2. Add untagged Ports for the specific ports to the VLANs as needed. Router(config-vlan-5)#untag ethernet 1/1/2 3. Add tagged ports. Router(config-vlan-5)#tag ethernet 1/1/4 4. Save the configuration. Router(config-vlan-5)#write memory