+ Reply to Thread
Results 1 to 3 of 3
  1. Junior Member Registered Member
    Join Date
    Jan 2012
    Posts
    2
    #1

    Default l2 switch operation - security ACL

    hi dears,

    right now I am preparing for switch exam and concrete I don't know how is possible that L2 switch may to performed some checking (security ACLs) on layer3 and layer4? How is this possible omg, that's L2 switch...


    from switch book:
    security ACLs—Access control lists (ACL) can be used to identify frames according to their MAC addresses, protocol types (for non-IP frames), IP addresses, protocols, and Layer 4 port numbers. The ternary content-addressable memory (TCAM) contains ACLs in a compiled form so that a decision can be made on whether to for-ward a frame in a single table lookup.

    Can someone explain me how it's possible.

    IMPORTANT:I am not talking about MLS I am talking about pure L2 switch.

    THANKS for replies.

    pepso
    Reply With Quote Quote  

  2. SS -->
  3. Registered Member Darril's Avatar
    Join Date
    May 2009
    Location
    Virginia Beach, VA
    Posts
    1,569

    Certifications
    MCT, A+, Net+, Security+, CASP, SSCP, CISSP, MCSE, MCITP...
    #2
    It sounds like you're talking about a Cisco switch exam. You may get a better response if you post your question in one of the Cisco forums.

    Darril Gibson
    Security+ blog
    Security+ Tip Of Day
    Reply With Quote Quote  

  4. Junior Member Registered Member
    Join Date
    Jan 2012
    Posts
    2
    #3
    can you pls be so kind and provide me with concrete URL ?

    I am trying to find some good CCNP/CCIE "live" forum...

    thanks.
    Reply With Quote Quote  

+ Reply to Thread

Social Networking & Bookmarks