The HP FlexFabric 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. 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.
- ID
- SV-80577r1_rule
- Version
- HFFS-L2-000025
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Remove the assignment of the default VLAN from all access switch ports.
<HP>display vlan 1
[HP-vlan2]port GigabitEthernet 1/0/1 to GigabitEthernet 1/0/48
[HP-GigabitEthernet1/0/1]shutdown