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Dhcp not working

luispereira75
Level 1
Level 1

Hi I have 2 sites connected with fiber and one i can get DHCP working for vlans the second site i can get DHCP for the main scopes but not for the vlans, Can anyone help?

23 Replies 23

As Mark indicated, if the sites are connected by a layer 2 link, you don't need a layer 3 interface at both sites. You need to trunk one site to the other and configure the layer 3 interface at only one site.

they are connected with trunks but it still not forwarding the requests

switchport trunk native vlan 10
switchport mode trunk
spanning-tree link-type point-to-point

Hello

Just like to add - you dont need the helper address either - you have a L3 interface on the same subnet as the dhcp server?


dhcp server = 172.19.64.19

int vlan  10
172.19.64.X/22

res
Paul


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Kind Regards
Paul

Hi
I want to add vlan 202
192.168.202.0
and vlan 8
192.168.8.0
to the dhcp server and assign to clients on this network

1.PNG

Have you removed the layer 3 SVI (VLAN) interfaces from the site where the DHCP server is NOT residing ?

No i have all vlan with SVI

Hi

Should i have layer 3 between sites?

 

thanks