For security purposes I have dedicated an interface ("ntnet" interface) on our Cisco ASA5520 for NT systems. NT access from the "ntnet" interface to files located on systems on the "inside" interface is insanely slow. The NT systems have no issue if they are located on the same interface as the systems they are trying to access. XP systems don't seem to have an issue no matter where they are located. Packet traces show a delay in NT acknowledging receipt of packets. This is happening with multiple NT systems. All systems use identical hardware. Does this make any sense. I would love to ditch NT but it is required by a contract.