FIPS 140-2 validated link encryption must be used end-to-end for all data streams connecting to remote access ports of the telephone switch.

FIPS 140-2 validated encryption mechanism is used to provide security of all data streams between the management port of the DSN component and a remote management station whether connected via a modem or network. The most secure authenticated session to any remote system is accomplished via a secure connection. Encryption provides confidentiality and should be used, if possible, to secure remote access connections to DSN administration/maintenance ports.