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Local clients keep receiving DHCP addresses from Sonicwall 2040 Standard device.

Posted on 2013-01-29
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Last Modified: 2013-05-02
Good afternoon-

I have a Windows 2003 DHCP Server which assigns addresses dynamically to the local clients on the network. However, My Sonicwall 2040 device which I use for vpn clients that connect to the network remotely and assign them a dhcp address from the actual sonicwall, keeps assigning addresses to the local clients on the network which I do not want.

Any help on this matter or instructions on how to resolve would be great. If you need me to provide more information please feel free.

Thanks in advance,

RB
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Question by:rbonds
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Thomas Grassi earned 500 total points
ID: 38832639
take a look at this

http://serverfault.com/questions/368512/can-i-have-multiple-dhcp-servers-on-one-network


you can have more than one dhcp server on the lan but you have to make sure there are no overlaps
 see above

I would setup the vpn clients on another subnet or vlan
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Author Comment

by:rbonds
ID: 38832717
My vpn clients are on another subnet.

1.VPN Clients receive this address range from the SonicWall DHCP Server : 10.120.3.0 - .254 (This subnet is excluded from the Win2003 DHCP Server)

2. Local Clients receive this address range from Win2003 DHCP Server: 10.120.0.2 - 10.120.2.254

Class A local Network. = Subnet 255.255.252.0

Again, My local clients sometimes receive ip addresses from the Sonicwall DHCP Server, which I don't want.

I have DHCP enabled on the SonicWall device for the sole purpose of handing out addresses for VPN Clients when connecting remotely.

Is there a way to stop local clients from sending dhcp request out to the Sonicwall DHCP server or is there an option in the SonicWall 2040 Standard to not hand out addresses locally?

Thank you.
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LVL 23

Expert Comment

by:Thomas Grassi
ID: 38832762
No if your Sonic is on the same lan as the local computers then you will have two dhcp servers which clients can receive dhcp requests from.
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