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Two routers are connected through serial interfaces and support PPP encapsulation. Which parameters must be negotiated to establish the PPP connection? (Choose three).
Correct answer ACD
"ip address ppp-negotiate" command::-Enables the function of requesting for an IP address from the peer device.
The Authentication phase is optional. By default, PPP does not perform authentication during PPP link establishment, whereby the two devices proceed to the Network phase and and LCP remains Opened
There are four stages of PPP negotiation"
1. Initiation Configuration Protocol (ICP)
This stage is internal to the local system running SCO PPP. No specified configuration parameters are negotiated here.
2. Link Control Protocol (LCP)
The PPP driver negotiates these parameters with the remote host:
maximum receive units (MRU)
asynchronous control character map (ACCM)
magic number
protocol field compression
address-control field compression
authentication
For these parameters, negotiation means that the local host may change the value or state of a parameter from that specified in its configuration file and accept the value or state suggested by the remote host.
3. Optional authentication
The PPP driver authenticates the remote host using PAP or CHAP if the local or remote side requires it.
4. Internet Protocol Control Protocol (IPCP)
The PPP driver negotiates these parameters with the remote host:
Van Jacobson TCP/IP header compression
IP addresses
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