The Arista MLS layer 2 switch must not use the default VLAN for management traffic.
An XCCDF Rule
Description
<VulnDiscussion>Switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with directly connected switches using Spanning-Tree Protocol (STP), Dynamic Trunking Protocol (DTP), VLAN Trunking Protocol (VTP), and Port Aggregation Protocol (PAgP)—all untagged traffic. As a consequence, the default VLAN may unwisely span the entire network if not appropriately pruned. If its scope is large enough, the risk of compromise can increase significantly.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-255983r882291_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Step 1: Configure the Arista MLS switch for a VRF instance for Management Network access by using the following commands:
switch(config)#vrf instance Management_Network
switch(config-vrf-Management_Network)#exit
Step 2: Configure the Ethernet port for VRF Management_Network and IP address for the management network traffic: