Need some help with a home work lab - OSPF connecting adjacency routers!

gbdavidxgbdavidx Posts: 840Member
Reading through my book and i didn't see anything like this, so im not sure why its in my home, but they are trying to connect a class a with a class b and forming a network together, is this even possible?

Here is my packet tracer file

Could someone tell me thats done CCNA if this is even possible or if i'm missing somethikng? I am doing it exactly how it is in the lab and am not missing anything!

So frustrating when the labs they give you dont even work right out of the box


  • scratcherbobscratcherbob Posts: 24Member ■□□□□□□□□□
    Is there a router between the 2 networks?
  • gbdavidxgbdavidx Posts: 840Member
    yes... i have given ip addresses to all interfaces but can't ping both ends of the serial interfaces, its in the packet tracer lab file
  • scratcherbobscratcherbob Posts: 24Member ■□□□□□□□□□
    Could you try with a static route first.
  • james43026james43026 Posts: 303Member
    Could you clarify exactly what you are trying to do in this lab? Also, the IP addressing on the serial links between the routers are mixed up. Router 2 has the incorrect IP address assigned to it, Router 1 has serial interface IP addresses backwards. Changing that around brought up the OSPF adjacency between R1 and R2. I'll let you figure out the rest.
  • DeathmageDeathmage Posts: 2,496Banned
    Make sure the DCE side of the serial link has a clock rate with the 'show controllers' command.

    Also in order for a serial link to make a connection the serial links both need to be in the same subnet or they won't pass traffic.
  • Ede890Ede890 Posts: 17Member ■□□□□□□□□□
    I looked into it too and james is right and few more is wrong with the neighboring...To supplement your reading you should probably watch the CBTnuggets help me de-mist what the book couldn't.Just my 2cents icon_study.gif
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