05-03-2024 08:13 AM
Hello, I am very new to networking and I am currently trying to set up a lab in my computer science class. I am trying to set forward lookup zone to our parent network's DNS server. When doing so the request says "A timeout occurred during validation" my DNS server cannot ping their DNS, but my router 2 can ping their DNS. Ive also attacthed a picture of the topography. Let me know if seeing any configurations would be helpful!
05-03-2024 08:26 AM
Can you show where is DNS server in your network?
MHM
05-03-2024 08:35 AM
It is connected on VLAN 200
05-03-2024 08:45 AM
you can not have same subnet connect to different L3 device
i.e.
VLAN11/12 connect to R1 and R3 and that make issue in network connectivity
MHM
05-03-2024 08:53 AM
05-03-2024 09:09 AM
I dont get your last reply
can you elaborate
MHM
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