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Syntax
Parameters
Defaults
Command Modes
Usage
Information
Related
Commands
ppp authentication
e
Syntax
Parameters
Defaults
Command Modes
Usage
Information
1390
|
SONET
loopback {internal | line}
To delete a loopback setting, use the no loopback {internal | line} command.
internal
Enter the keyword
back through the interface.
line
Enter the keyword
back to the network.
Not configured.
INTERFACE
Use the
show config
command in the INTERFACE mode to determine if the
configured.
show config
Enable Challenge-Handshake Authentication Protocol (CHAP) and/or Password Authentication
Protocol (PAP) authentication on the interface.
ppp authentication {chap | chap pap | pap | pap chap}
To remove all PPP authentication, enter no ppp authenticate.
chap
Enter the keyword
chap pap
Enter the keywords
pap
Enter the keyword
pap chap
Enter the keywords
side.
Not configured.
INTERFACE
Once you configure this command, the remote device must prove its identity before the FTOS sends
traffic.
The two authentication types differ slightly:
•
With CHAP authentication, the E-Series sends a challenge to the remote device, which must
encrypt the response with a shared value and return it to the E-Series with a username. The
E-Series checks the local database for a match on the shared value and username.
•
With PAP authentication, the remote device must send a username/password set which the FTOS
checks against the local database. PAP passwords are sent as "clear text" and could be intercepted
and used.
internal
to test the physical interface by sending incoming traffic
line
to test connectivity to the network by sending incoming traffic
Display
the interface configuration.
chap
to enable CHAP authentication only.
chap pap
to enable CHAP on one side and PAP on the other.
pap
to enable PAP authentication only.
pap chap
to enable PAP on one side and CHAP on the other
loopback
command was
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