We're Sorry, Full Content Access is for Members Only...

If you like to keep on reading, Become a Member Now! Here is Why:

  • Learn any CCNA, CCNP and CCIE R&S Topic. Explained As Simple As Possible.
  • Try for Just $1. The Best Dollar You've Ever Spent on Your Cisco Career!
  • Full Access to our 625 Lessons. More Lessons Added Every Week!
  • Content created by Rene Molenaar (CCIE #41726)

 

419 New Members signed up the last 30 days!

satisfaction-guaranteed

100% Satisfaction Guaranteed!
You may cancel your monthly membership at any time.
No Questions Asked!

Tags: , ,


Forum Replies

  1. Hi Rene
    I’m using for the lab Cisco Switches 3550 and 3750 as layer 3 switches, and those doesn’t seem to support VRRP or GLBP, what model are you using for this lab and the glbp lab, thank you and by the way, thank you for your last reply.

    regards
    Ramon

  2. Hi Yevgeniy,

    Good question and there’s a long answer…

    Originally on the 3550 and some of the 6500 supervisors only 16 HSRP groups were allowed but this limitation applied only to a single interface. You could use the same group number on different interfaces without any issues. On newer platforms this 16 limit doesn’t apply anymore…the 3750 supports 32 groups I think and my 2800 router supports 255.

    About authentication…originally the RFC 2338 standard described authentication but it was removed in RFC 3678 since it wasn’t secure. Not sure which RFC the Cisco i

    ... Continue reading in our forum

  3. Hi Ivaylo,
    The short answer to your question is that you will need a separate VRRP instance for each vlan that you want to have a highly available gateway.

    I have attached a new topology to discuss this. In it, you will see that Computers A and B are in different VLANs (A and B). Switch A and Switch B are both connected to the access-layer Switch C. Note: These connections must be configured as trunks, let’s say the modern 802.1Q standard with both VLAN A and VLAN B allowed. Additionally, it would be a good idea to have Switch A and Switch B directly connec

    ... Continue reading in our forum

  4. Hi,

    thank you for confirming. It’s clear now.

    Rgds,
    Oliver

25 more replies! Ask a question or join the discussion by visiting our Community Forum