A few questions related to wide area network

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You know, Ethernet networks(LAN) handle MAC addressing during packet transmission. (Destination MAC
address is learned through ARP request if its not placed on its ARP cache before if transmitting device
is a PC or router.
However, on leased lines which packet encapsulation is made via HDLC or PPP protocols, how is the addressing made? I mean, HDLC or PPP frame has an "address" field but does it have a special name as it was on MAC and while packet is on the network layer of transmitting router, what should be learned from the other end instead of MAC?


Second and the last,

On point to point dedicated lines, is the router on one end "directly connected" to the one on the other? or
between these routers, is it possible to mention that WAN switches are interconnecting them even though
this type is called point-to-point ?
Edit : i asked this because it is shown "going through WAN switches following a dedicated path" in my study guides
but it is written "point-to point without any intermediate device sticks its nose into.

 

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Hi kobem

I had to ditch my Cisco studies I'm afraid but I'm sure someone will be along soon who can answer your query sensibly (maybe cisco labrat or BM).

 

Not a chance.

 

Hi

You need to go through the Cisco press books from start to finish, I don't get it? You have your CCNA but you keep asking basic Cisco stuff, are you not studying for the CCNP yet?

•Interconnecting Cisco Network Devices, Part 1 (ICND1)
•Interconnecting Cisco Network Devices, Part 2 (ICND2)

There is alot of info to take in, but I use mine for reference all the time, everything you need is in them.

 

PPP uses CHAP and EAP authentications to establish sessions i.e connect to the ISP

 

Kobem is not asking about authentication, and in any case authentication is *optional* in PPP (Point to Point protocol).

He is asking for clarification on how one network device knows it's destination when there is no mac address in the packets.

I think it's a good question.

 

Slarp

serial line address resolution protocol