+ Reply to Thread
Results 1 to 11 of 11
  1. Member
    Join Date
    Feb 2011
    Location
    Hampton, VA
    Posts
    54

    Certifications
    Network+, Security+
    #1

    Default PC MAC Addresses in Packet Tracer

    How is a Packet Tracer switch supposed to learn PC MAC addresses when there seems to be no way to assign them and they aren't pre-configured on the PCs ? Thanks for any help !
    Reply With Quote Quote  


  2. Login/register to remove this advertisement.
  3. Senior Member alan2308's Avatar
    Join Date
    Apr 2010
    Location
    Ann Arbor, MI
    Posts
    1,651

    Certifications
    CCNA, CCNA Sec, MCSA 2008, MCSA 2012
    #2
    They have MAC addresses. Directly from a PC in packet tracer:
    Code:
    PC>ipconfig /all
    
    
    Physical Address................: 0002.4AA8.34EB
    IP Address......................: 0.0.0.0
    Subnet Mask.....................: 0.0.0.0
    Default Gateway.................: 0.0.0.0
    DNS Servers.....................: 0.0.0.0
    And from the switch:
    Code:
    Switch#sh mac-address-table 
              Mac Address Table
    -------------------------------------------
    
    
    Vlan    Mac Address       Type        Ports
    ----    -----------       --------    -----
    
    
       1    0002.4aa8.34eb    DYNAMIC     Fa0/1
    Reply With Quote Quote  

  4. Senior Member ciscoman2012's Avatar
    Join Date
    Mar 2011
    Posts
    308

    Certifications
    ACMP, CCENT, CCNA, CWTS
    #3
    They are pre-configured on the PC's in Packet Tracer.

    For example, add a PC to your topology and then double click on it. A window will come up and then click on the second tab option that says "Config". Then under Interface on the left click on "FastEthernet". Once there you can see the duplex and speed settings for that PC, in addition to the MAC Address and IP configuration information.

    Hope this helps! Packet Tracer is a wonderful program by the way if you haven't figured out already!! Very useful!

    Reply With Quote Quote  

  5. Member
    Join Date
    Feb 2011
    Location
    Hampton, VA
    Posts
    54

    Certifications
    Network+, Security+
    #4
    thanks, fellows !...it seems like i don't know enough about packet tracer, then....just wondering why when i go to " show mac-address-table ", only the vlan1 interfaces show up and no other mac addresses....a switch is supposed to automatically learn directly connected MAC addresses, correct ?...hot damn, this stuff is confusing !...thanks again !.....
    Reply With Quote Quote  

  6. Senior Member ciscoman2012's Avatar
    Join Date
    Mar 2011
    Posts
    308

    Certifications
    ACMP, CCENT, CCNA, CWTS
    #5
    Quote Originally Posted by RyanCorbett View Post
    thanks, fellows !...it seems like i don't know enough about packet tracer, then....just wondering why when i go to " show mac-address-table ", only the vlan1 interfaces show up and no other mac addresses....a switch is supposed to automatically learn directly connected MAC addresses, correct ?...hot damn, this stuff is confusing !...thanks again !.....
    You are correct, but for some reason Packet Tracer won't recognize it until you try to send a frame through to the switch. For example, go on the PC and do a "Ipconfig /renew" in the Command Terminal and then it will appear.
    Reply With Quote Quote  

  7. Member
    Join Date
    Feb 2011
    Location
    Hampton, VA
    Posts
    54

    Certifications
    Network+, Security+
    #6
    Quote Originally Posted by ciscoman2012 View Post
    You are correct, but for some reason Packet Tracer won't recognize it until you try to send a frame through to the switch. For example, go on the PC and do a "Ipconfig /renew" in the Command Terminal and then it will appear.
    thanks, ciscoman...i've noticed ( to my dismay ) that there are quite a few commands that Packet Tracer doesn't support, as well...one would think since this program is of a proprietary nature that cisco would have done a more thorough job on it...oh well.... thanks again !
    Reply With Quote Quote  

  8. Senior Member Ltat42a's Avatar
    Join Date
    Apr 2009
    Location
    on this thread
    Posts
    497

    Certifications
    A+, Network+, CCNA
    #7
    Quote Originally Posted by RyanCorbett View Post
    thanks, fellows !...it seems like i don't know enough about packet tracer, then....just wondering why when i go to " show mac-address-table ", only the vlan1 interfaces show up and no other mac addresses....a switch is supposed to automatically learn directly connected MAC addresses, correct ?...hot damn, this stuff is confusing !...thanks again !.....
    Check out Youtube for "Packet Tracer", there's quite a bit tutorials on there!

    hth
    CCENT/CCNA Home Lab Ideas: http://www.techexams.net/forums/ccna...tml#post683358
    Can I Subnet Correctly Often
    A spark of encouragement can ignite great endeavors
    Reply With Quote Quote  

  9. Member
    Join Date
    Feb 2011
    Location
    Hampton, VA
    Posts
    54

    Certifications
    Network+, Security+
    #8
    Quote Originally Posted by Ltat42a View Post
    Check out Youtube for "Packet Tracer", there's quite a bit tutorials on there!

    hth

    thanks !
    Reply With Quote Quote  

  10. Senior Member ciscoman2012's Avatar
    Join Date
    Mar 2011
    Posts
    308

    Certifications
    ACMP, CCENT, CCNA, CWTS
    #9
    Quote Originally Posted by RyanCorbett View Post
    thanks, ciscoman...i've noticed ( to my dismay ) that there are quite a few commands that Packet Tracer doesn't support, as well...one would think since this program is of a proprietary nature that cisco would have done a more thorough job on it...oh well.... thanks again !
    I completely agree with you...but at the same point they couldn't have included everything. Well they could have, but since it was just for the Networking Acad. this was prob. more than sufficient.

    If you have access to IOS images, you should try and download GNS3 especially for configuring routers. As far as I know, all commands work on there as they would a real switch (provided you have the correct IOS image). The benefit of using GNS3 over Packet Tracer is that GNS3 isn't a simulator. It is actually emulating the IOS image and using the real thing. Very nifty it just isn't as good for using switches as it has none in GNS3.
    Reply With Quote Quote  

  11. Member
    Join Date
    Feb 2011
    Location
    Hampton, VA
    Posts
    54

    Certifications
    Network+, Security+
    #10
    Quote Originally Posted by ciscoman2012 View Post
    I completely agree with you...but at the same point they couldn't have included everything. Well they could have, but since it was just for the Networking Acad. this was prob. more than sufficient.

    If you have access to IOS images, you should try and download GNS3 especially for configuring routers. As far as I know, all commands work on there as they would a real switch (provided you have the correct IOS image). The benefit of using GNS3 over Packet Tracer is that GNS3 isn't a simulator. It is actually emulating the IOS image and using the real thing. Very nifty it just isn't as good for using switches as it has none in GNS3.
    i'll add look into that this evening...thank you, sir !
    Reply With Quote Quote  

  12. Senior Member
    Join Date
    Jul 2011
    Location
    Sydney,Australia
    Posts
    741
    #11
    If you use gsn3 make sure to set the pc idle setting

    cbt nuggests gsn3 video
    http://www.cbtnuggets.com/standalone...642_902_02.mp4
    Reply With Quote Quote  

+ Reply to Thread

Social Networking & Bookmarks