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Use the
show interfaces serial
command to verify
proper configuration of HDLC or PPP encapsulation. The command output in
Figure 
illustrates a PPP configuration. When high-level data link
control (HDLC) is configured, "Encapsulation HDLC" should be reflected
in the output of the
show interfaces serial
command. When PPP is
configured, its Link Control Protocol (LCP) and Network Control Protocol
(NCP) states can be checked using the
show interfaces serial
command.Figure
 lists
commands used when enabling, configuring and verifying PPP.
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Lab Activity
Lab Exercise: Verifying PPP Configuration
In this lab, the
student will configure a serial interface on the Brasilia
and Warsaw routers with the PPP protocol.
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Lab Activity
e-Lab Activity: Verify PPP Protocol
In this lab, the student will configure a serial
interface on the Brasilia and Warsaw routers with the PPP
protocol.
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Web Links