Robert_Rayworth
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How to setup a single Windows DHCP server with multiple VLAN's
I am trying to setup my home lab Windows 2012 server as a single Windows DHCP server with multiple Vlans.
My hardware setup is 1x Cisco 2960G switch with 1x Cisco ASA5505 Firewall.
The Cisco ASA5505 has the Security Plus License installed so no VLAN restrictions.
I have a HP Micro Server with one network interface connected up to the Cisco Switch 2960G
Can anyone help me guide me on how I would go about setting up this environment.
My hardware setup is 1x Cisco 2960G switch with 1x Cisco ASA5505 Firewall.
The Cisco ASA5505 has the Security Plus License installed so no VLAN restrictions.
I have a HP Micro Server with one network interface connected up to the Cisco Switch 2960G
Can anyone help me guide me on how I would go about setting up this environment.
ASKER
I have setup several scopes on my Windows DHCP server this part is working fine
You mentioned adding the following line please can you be more specific
my current dhcp server is 172.16.1.1 the gateway is 172.16.1.254
The first scope is 172.16.1.0
The second scope is 192.168.1.0
I have been running with one scope fine but by adding the second scope wont this cause a conflict with the first. Whats stopping the wrong ip address being handed out
There was nothing in the scope creation that told them they were specific to a vlan any ideas?
You mentioned adding the following line please can you be more specific
my current dhcp server is 172.16.1.1 the gateway is 172.16.1.254
The first scope is 172.16.1.0
The second scope is 192.168.1.0
I have been running with one scope fine but by adding the second scope wont this cause a conflict with the first. Whats stopping the wrong ip address being handed out
There was nothing in the scope creation that told them they were specific to a vlan any ideas?
Your VLAN config on your switch should define the IP addresses allowed on that VLAN. This will prevent the DHCP server from handing out addresses to the wrong VLAN.
Can you share your VLAN interface config?
Can you share your VLAN interface config?
ASKER CERTIFIED SOLUTION
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On your Cisco switches, when setting up your VLAN definitions, add the following line to each VLAN, substituting the IP of your DHCP server. This will redirect the DHCP requests across the VLANs.
ip helper-address 192.168.1.10
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