08-05-2021 10:58 PM
Hay guys,
Hope everyone is doing well.
I am trying out the following scenario in a lab environment but having trouble configuring.
VLAN 10 (Native) 172.16.10.0/24
DHCP server, Distribution switch and other 3 switched should be in this vlan (for management)
VLAN 20 ADMIN– 172.16.20.0/24
VLAN 30 CTM– 172.16.30.0/24
VLAN 40 SERVICE– 172.16.40.0/24
DHCP server is running separate pools for each network
PC’s must be able to talk to each vlan
I configured the VLANs in each switch and configured interfaces as follows
Distribution switch Gig 1/0/22 – 24 as trunk (with VLAN 10,20,30,40)
Distribution switch Gig 1/0/1 – trunk (with VLAN 10,20,30,40)
Each switch
GigE 0/1 – Trunk (with VLAN 10,20,30,40)
Still not able talk to each other and unable to find a way to assign the network devices into 172.16.10.0 network.
08-06-2021 12:34 AM
Quick Look, high-level Cisco Default Native VLAN is 1 - Since you changing from Native VLAN 10, you need to specify the default native VLAN in the Trunk Config.
The picture is a bit blur here, is the DHCP also in Part of VLAN 10 ? do you have helper-address or DHCP snooping enabled?
To go deep if that has not solved the issue - posting all the device config to verify ( show run)
08-09-2021 05:13 PM
Hi Again Balaji,
1. DHCP server works in vlan 1. I couldn't find a place to change the DHCP helper in the packet tracer.
2. I didn't configure VLAN 10 as NATIVE in ADMIN, CTM, and SERVICE Switches. I will try this and update you.
Thank you for the response.
08-07-2021 11:57 AM
Hello,
post the zipped Packet Tracer project (.pkt) file...
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