The authentication method you want to apply to the initiator for access to this filer. Select from the following methods:
none–There is no authentication for the initiator.
deny–The initiator is denied access when it attempts to authenticate to the filer.
CHAP–The initiator has to authenticate successfully using Challenge-Handshake Authentication Protocol (CHAP) to access the filer.
In CHAP authentication, the filer sends the initiator a challenge value. The initiator responds with a value calculated using a "one-way hash" function. The filer then checks the response against its own version of the value calculated using the same one-way hash function. If the values match, the authentication is successful. To decrease the risk of having other clients use intercepted information to "steal" the session, the authentication procedure is repeated at random intervals.
If you choose CHAP authentication for this initiator, you must specify a user name and password for inbound and, optionally, outbound connections.