AirWorks AWK-3131A
Web Console Configuration
3-24
•
Certificate issued by
: Shows the certificate issuer
•
Certificate expiration date
: Indicates when the certificate has expired
EAP-TTLS
It is usually much easier to re-use existing authentication systems, such as a Windows domain or Active
Directory, LDAP directory, or Kerberos realm, rather than creating a parallel authentication system. As a result,
TTLS (Tunneled TLS) and PEAP (Protected EAP) are used to support the use of so-called “legacy authentication
methods.”
TTLS and PEAP work in a similar way. First, they establish a TLS tunnel (EAP-TLS for example), and validate
whether the network is trustworthy with digital certificates on the authentication server. This step establishes
a tunnel that protects the next step (or “inner” authentication), and consequently is sometimes referred to as
“outer” authentication. The TLS tunnel is then used to encrypt an older authentication protocol that
authenticates the user for the network.
As you can see, digital certificates are still needed for outer authentication in a simplified form. Only a small
number of certificates are required, which can be generated by a small certificate authority. Certificate
reduction makes TTLS and PEAP much more popular than EAP-TLS.
The AWK-1137C provides some non-cryptographic EAP methods, including
PAP
,
CHAP
,
MS-CHAP
, and
MS-CHAP-V2
. These EAP methods are not recommended for direct use on wireless networks. However, they
may be useful as inner authentication methods with TTLS and PEAP.
Because the inner and outer
authentications can use
distinct user names in TTLS
and PEAP, you can use an
anonymous user name for the
outer authentication, with the
true user name only shown
through the encrypted
channel. Keep in mind that
not all client software
supports anonymous
alteration. Confirm this with
the network administrator
before you enable identity
hiding in TTLS and PEAP.
TTL inner authentication
Setting
Description
Factory Default
PAP
Password Authentication Protocol is used
MS-CHAP-V2
CHAP
Challenge Handshake Authentication Protocol is used
MS-CHAP
Microsoft CHAP is used
MS-CHAP-V2
Microsoft CHAP version 2 is used
Anonymous
Setting
Description
Factory Default
Max. of 31 characters A distinct name used for outer authentication
None
User name & Password
Setting
Description
Factory Default
-
User name and password used for internal authentication which
cannot contain the following the special characters: ` ' " | ; & $
None
