RE: VPN and DHCP
- From: "William T. Holmes" <wtholmes@xxxxxxxxxxxxxx>
- To: "ISAserver.org Discussion List" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 7 Nov 2005 23:32:35 -0500
Hello,
To begin with RRAS clients VPN or otherwise do not receive their
addresses directly from the DHCP server even if you have configured RRAS
to use DHCP. The RRAS server allocates addresses in blocks from the DHCP
server (usually in blocks of 10). Once it has done so the DHCP server is
out of the picture until the RRAS sever has to renew the block. The VPN
clients never talk to the DHCP server when obtaining their addresses.
If you have the DHCP relay agent configured on your RRAS server to
provide other DHCP options to your VPN clients then those requests will
be sent to you DHCP server but the load would be slight.
You should take a look at:
http://support.microsoft.com/default.aspx?scid=kb;en-us;232703
AND
http://support.microsoft.com/kb/160699
Bill
> -----Original Message-----
> From: Andrew English [mailto:andrew@xxxxxxxxxxxxxxxxxxxxxx]
> Sent: Monday, November 07, 2005 7:49 PM
> To: ISAserver.org Discussion List
> Subject: [isalist] VPN and DHCP
>
> http://www.ISAserver.org
>
>
>
> A friend of mine highly recommended that I not tax my internal DHCP
> server for doing my VPN via ISA 2004, and that I instead install DHCP
> server on ISA 2004 giving VPN users a different IP range.
>
> I am looked at different tutorials, even Tom's book but am not quite
> sure how to tackle it.
>
> Andrew
>
>
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