DHCP and VPN 3000 Concentrator

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Aug 18th, 2009
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Is there a way I can have clients get an IP from a windows dhcp server scope other that the scope the concentrators internal interface is on? I'm running out of IP's on that subnet.


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dennis-wilson Tue, 08/18/2009 - 12:47
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Yes I have that already. My windows dhcp server has many subnets for my vlans and remote networks. I want my vpn clients to get an IP from a specific subnet scope that's not on the same subnet as the vpn concentrators internal interface. Can this be done? It just defaults to the same subnet as the internal interface.


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slmansfield Tue, 08/18/2009 - 12:57
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I think the default behavior is to use the subnet of the private interface, but you can change that. Please see this description.


DHCP Network Scope - To use this feature, the VPN Concentrator must be using a DHCP server for address assignment. To configure a DHCP server, see the System | Servers | DHCP screen.


Enter the IP sub-network that the DHCP server should assign to users in this group, for example: 200.0.0.0. The DHCP Network Scope indicates to the DHCP server the range of IP addresses from which to assign addresses to users in this group.


Enter 0.0.0.0 for the default; by default, the DHCP server assigns addresses to the IP sub-network of the VPN Concentrator's private interface.



dennis-wilson Tue, 08/18/2009 - 13:00
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Yeah I tried that also with no luck. I will look at that again.

slmansfield Wed, 08/19/2009 - 05:40
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You might just verify that the VPN client userid is in the group whose DHCP scope is reconfigured. The documentation emphasizes that this change is associated with a group on the concentrator. Otherwise it will take the default.


HTH

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