Re: Multihomed RRAS Configurations

From: Robert L [MS-MVP] (noreply_at_hotmail.com)
Date: 02/22/05 

Date: Mon, 21 Feb 2005 21:22:59 -0600

not sure the issue. assuming you have two NICs, one is for the public ip and other is for the private ip, you should setup internal IP as VPN connection. if for some reasons you need two NICs to separate two networks, you should keep just one DHCP and use IP pool for the VPN clients and also enable IP routing. For more and other information, go to http://howtonetworking.com.

Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help.

Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, Remote Access on http://www.HowToNetworking.com
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
I recommend Brinkster for web hosting!

  "rgc" <rgc@discussions.microsoft.com> wrote in message news:97242BB3-2383-48CF-A42E-92EBC50148C1@microsoft.com...
  I have Windows 2000 Advanced Server system with two network cards. Each card
  is configured on a seperate subnet. My understanding of DHCP is that it
  configures to the internal network card not the external network card. I am
  creating a VPN connection with the external network card. I am running DNS
  and DHCP on the server on my internal card. The second network card is
  configured with a static IP address from a range of IP address. I want to be
  able to come in two the RRAS server as the external network card or subnet
  and see the resources on the internal network. My understanding is that I am
  creating a multihomed DHCP server which should support multiple NICS. I also
  understand that the server must be physicaly multihomed because the server
  service will bind only the primary IP address on each interface. If the
  internal network has multipe network IDs, and VPN clients need to reach
  resources on these muutiple network IDs, configure the routing table on the
  VPN server. The VPN clients take advantage of the router table on the VPN
  server to reach resources on remote networks. It also recommends that you
  configure the new routing table entries in RRAS GUI interface. My question is
  what configuration is needed in DHCP on the server when you have two nic
  cards. Do you setup the internal network card and then refer the second nic
  card in a the same scope or do you setup another scope referencing the second
  card (external network)and I also am aware that their is a DHCP relay agent
  which works as a protocol router for DHCP messages. Currently, I am able to
  log into the RRAS as a user and that user is seen on the RRAS server but I am
  unable to see any network resources in My Network Places/The network
  neigborhood! I have study many areas of infomation on the internet and I
  have not found any area which explains the proper configuration of a two
  subnets multihomed network running RRAS and DNS & DHCP on a server. I want
  to be able to tunnel on a static IP address on a seperate network card but
  then see the internal network at my office and see all the resources! I have
  to believe that this would be almost a standard configuration for any small
  business who doesn't want to expose his business to the rest of the world.

  Thanks,
  Robert

  Note: If you need ipconfig /all or need IP routing tables please let me know.

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