Nortel Networks 8000 - Manual (Page 138)

6 PPP and MP configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
6.3.4 Checking the configuration
Run the following commands to check the previous configuration.
Action Command
Check the link status of the
interface and the running
status of LCP
display interface [ interface-type [ interface-number ] ]
Run the display interface command. When LCP is "opened" the authentication succeeds. For
example:
<Nortel> display interface Serial 6/0/0
Serial6/0/0 current state : UP
Line protocol current state : UP
Description : Huawei, Quidway Series, Serial6/0/0 Interface
The Maximum Transmit Unit is 1500 bytes, Hold timer is 10(sec)
Internet Address is 12.1.1.1/24
Link layer protocol is PPP
LCP Opened
QoS max-bandwidth : 64 Kbps
Output queue : (Urgent queue : Size/Length/Discards) 0/50/0
Output queue : (Protocol queue : Size/Length/Discards) 0/1000/0
Output queue : (FIFO queue : Size/Length/Discards) 0/256/0
Physical layer is synchronous, Loopback not set, NRZ Code
Baudrate is 64000 bps, Interface is no cable
Statistics last cleared: never
Last 300 seconds input rate 0 bits/sec, 0.00 packets/sec
Last 300 seconds output rate 0 bits/sec, 0.00 packets/sec
Input: 0 packets, 0 bytes
0 input errors, 0 runts, 0 giants, 0 parity errors
0 CRC, 0 overruns, 0 frame errors
Output:0 packets, 0 bytes
0 output errors, 0 underruns, 0 parity errors, 0 describe errors
0 owner errors, 0 Other errors
DCD=DOWN DTR=DOWN DSR=DOWN RTS=DOWN CTS=DOWN
6.4 Configuring unidirectional CHAP
6.4.1 Establishing the configuration task
Applicable environment
In CHAP authentication, passwords are sent over the link in encrypted text. You can add the
user name and password of the authenticated in AAA mode or through the RADIUS server
into the authenticator's user list.
PAP authentication divides into the following two types:
• Unidirectional where one part works as the authenticator, and the other as the
authenticated.
6-12 Nortel Networks Inc. Issue 5.3 (30 March 2009)