The Dell OS10 Switch must not have the default VLAN assigned to any host-facing switch ports.
An XCCDF Rule
Description
In a VLAN-based network, switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with other networking devices using Spanning-Tree Protocol (STP), Dynamic Trunking Protocol (DTP), VLAN Trunking Protocol (VTP), and Port Aggregation Protocol (PAgP)—all untagged traffic. Therefore, 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.
- ID
- SV-269967r1052287_rule
- Version
- OS10-L2S-000220
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Remove the assignment of the default VLAN from all access switch ports:
OS10(config)# interface range eth1/1/4-1/1/58
OS10(conf-range-eth1/1/4-1/1/58)# switchport mode access
OS10(conf-range-eth1/1/4-1/1/58)# switchport access vlan 200