1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

A few questions related to wide area network

Discussion in 'Routing & Switching' started by kobem, Feb 19, 2011.

  1. kobem

    kobem Megabyte Poster

    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.
    Last edited: Feb 19, 2011
    Certifications: CCNA
  2. UKDarkstar
    Honorary Member

    UKDarkstar Terabyte Poster

    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).
    Certifications: BA (Hons), MBCS, CITP, MInstLM, ITIL v3 Fdn, PTLLS, CELTA
    WIP: CMALT (about to submit), DTLLS (on hold until 2012)
  3. Fergal1982

    Fergal1982 Petabyte Poster

    Not a chance.
    Last edited: Feb 19, 2011
    Certifications: ITIL Foundation; MCTS: Visual Studio Team Foundation Server 2010, Administration
    WIP: None at present
  4. TheITCrowd

    TheITCrowd Kilobyte Poster


    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.
    Certifications: Network + |CCNA |MCTS-70-680,MCTS-70-401, MCTS-70-656, MCTS-70-351 |HP AIS ProCurve Networking -2011 | HP2-896 |VCD-CP27|JNCIA |Hewlett Packard ASE - Network Infrastructure (2011)
    WIP: 642-813
  5. greenbrucelee
    Highly Decorated Member Award

    greenbrucelee Zettabyte Poster

    PPP uses CHAP and EAP authentications to establish sessions i.e connect to the ISP
    Certifications: A+, N+, MCDST, Security+, 70-270
    WIP: 70-620 or 70-680?
  6. Bluerinse
    Honorary Member

    Bluerinse Exabyte Poster

    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.
    Certifications: C&G Electronics - MCSA (W2K) MCSE (W2K)
  7. cisco lab rat

    cisco lab rat Megabyte Poster


    serial line address resolution protocol
    Certifications: Yes I pretty much am!!
    WIP: Fizzicks Degree

Share This Page