A SAN administrator has been advised that access to manage storage and switching devices has been changed to a different VLAN for security reasons. The administrator cannot log into one storage system

When management access is moved to a different VLAN, firewalls must be updated to permit traffic from the management workstation's IP address or network to the storage system's management IP address on the new VLAN. If the firewall rules are not updated, the connection will be blocked, making it impossible to log in.

Jumbo frames are typically related to data transfer efficiency for iSCSI or FCoE, not initial management access or login issues, and are unlikely to prevent a basic management connection.

While an incorrect NIC configuration could cause network issues, it's less likely to be the *most* likely cause than a firewall blocking a specific VLAN, especially since other storage systems might be accessible, indicating the workstation's NIC is generally functional.

Zoning misconfiguration is specific to Fibre Channel (FC) storage networks and affects data path access to LUNs, not management access for logging into the storage system itself.