USER’S GUIDE
194 CyberSWITCH
X.121
ADDRESS
If you choose an SVC for your virtual circuit, you must provide the X.121 address of the remote
device you are currently adding to the Device Table. (The X.121 addresses for both local and remote
devices are provided by your X.25 provider.)
D
IGITAL
M
ODEM
C
ONFIGURATION
E
LEMENTS
Note:
These elements are configured for digital modem devices only.
L
INE
P
ROTOCOL
The available line protocols for ISDN access devices. The only available selection at this time is PPP.
B
AUD
R
ATE
The baud rate at which data will be transmitted. The only selection at this time is Auto, which
implies the CyberSWITCH and remote modem will negotiate the baud rate automatically.
B
EARER
C
APABILITIES
The information transfer capabilities that are used for digitized analog modem signals. Choices are:
Speech or 3.1 kHz Audio. The default value is Speech.
D
IAL
O
UT
P
HONE
N
UMBER
The phone number the CyberSWITCH will use to call out to this device.
A
UTHENTICATION
C
ONFIGURATION
E
LEMENTS
PAP P
ASSWORD
This password is used by PPP line protocol for PAP authentication. This is an unencrypted
password value (a string of 1 to 12 ASCII characters) used as a security check when PAP Password
Security is enabled. (PAP is an authentication protocol defined in RFC 1334 as part of the PPP
protocol suite.) At connection establishment time, the calling party sends an unencrypted device
identifier and password combination over the WAN to the system. The system looks up the Device
Name based on the received device identifier and validates the password for that device. If the
password received matches the password configured for the identified device, the call is accepted.
Otherwise, the call is disconnected.
This value is stored in the same location as the bridge password, so a change to one password
affects the other.
CHAP S
ECRET
This field is used by PPP line protocol for CHAP authentication. This is a string of 1 to 17 ASCII
characters that is used as a security check when CHAP Challenge Security is enabled. (CHAP is an
authentication protocol defined in RFC 1334 as part of the PPP protocol suite.) CHAP is
characterized by a highly secure challenge and response mechanism which is performed at
connection setup, and which can optionally be repeated throughout the existence of the connection.
A shared CHAP Secret is configured for the devices at both ends of the connection. Refer to
System
Information,
system secret. As opposed to a password, a CHAP Secret is not sent across the link, and
therefore is not susceptible to interception. Instead, a calculation is done on the packets transmitted
between the two devices, and the results are compared to the shared CHAP Secret for validation.
If the calculation’s results do not match the expected results, the connection is terminated.
