Objectives

This challenge involves the configuration of the S0 port on a router. The objectives of this challenge are to:

• Setup the IP address on S0 port.
• Setup the subnet mask on S0 port.
• Enable the S0 port.
• Set the description for the S0 port.
• Define the speed of the S0 port.
• Define duplex on the S0 port.

Sample

> enable
# config t
(config)# username fred password bert
(config)# int s0
(config-if)# ip address 138.199.17.1 255.255.255.248
(config-if)# no shutdown
(config-if)# description students
(config-if)# encapsulation ppp
(config-if)# ppp authentication chap
(config-if)# clock rate 56000
(config-if)# carrier-delay 8
(config-if)# bandwidth 198
(config-if)# no ip route-cache
(config-if)# no fair-queue
(config)# end

Example

> enable
# config t
(config)# username fred password bert
(config)# int s0
(config-if)# ip address 138.199.17.1 255.255.255.248
(config-if)# no shutdown
(config-if)# description students
(config-if)# encapsulation ?
  atm-dxi      ATM-DXI encapsulation
  frame-relay  Frame Relay networks
  hdlc         Serial HDLC synchronous
  lapb         LAPB (X.25 Level 2)
  ppp          Point-to-Point protocol
  smds         Switched Megabit Data Service (SMDS)
  x25          X.25
(config-if)# encapsulation ppp
(config-if)# ppp ?
  accm            Set initial Async Control Character Map
  acfc            Options for HDLC Address & Control Field Compression
  authentication  Set PPP link authentication method
  bridge          Enable PPP bridge translation
  chap            Set CHAP authentication parameters
  ipcp            Set IPCP negotiation options
  lcp             PPP LCP configuration
  link            Set miscellaneous link parameters
  max-bad-auth    Allow multiple authentication failures
  multilink       Make interface multilink capable
  pap             Set PAP authentication parameters
  pfc             Options for Protocol Field Compression
  quality         Set minimum Link Quality before link is down
  reliable-link   Use LAPB with PPP to provide a reliable link
  timeout         Set PPP timeout parameters
  use-tacacs      Use TACACS to verify PPP authentications
(config-if)# ppp authentication ?
  chap     Challenge Handshake Authentication Protocol (CHAP)
  ms-chap  Microsoft Challenge Handshake Authentication Protocol (MS-CHAP)
  pap      Password Authentication Protocol (PAP)
(config-if)# ppp authentication chap
(config-if)# clock ?
  rate  Configure serial interface clock speed
(config-if)# clock rate ?
        Speed (bits per second)
  1200
  2400
  4800
  9600
  14400
  19200
  28800
  32000
  38400
  56000
  57600
  64000
  72000
  115200
  125000
  128000
  148000
  192000
  250000
  256000
  384000
  500000
  512000
  768000
  800000
  1000000
  1300000
  2000000
  4000000
  8000000
  <300-4000000>    Choose clockrate from list above
(config-if)# clock rate 56000
(config-if)# carrier-delay 8
(config-if)# bandwidth 198
(config-if)# no fair-queue
(config)# end
# sh running