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DNS/DHCP through Windows Server 2008 with a DHCP Router

    Question

  • Hi, 

    I'm currently trying to configure up a test environment using Windows Server 2008 R2. 

    I'm needing to do the following with it but have looked everywhere for answers which are non existent! 


    I have a DHCP Router which is connected to the Modem, the Router has the IP Address of 192.168.1.50 and is assigning addresses of 192.168.1.100 - 192.168.1.150 

    I'm wanting to still allow the DHCP Router to hand out addresses to clients connected directly to it without logging into a domain, but for my Windows Server 2008 R2 Domain Controller to hand out DHCP addresses of 192.168.0.50 - 192.168.0.100 and have a static IP of 192.168.0.1. I want my DHCP server to act as DNS/DHCP and have AD DC. 

    How would I be able to set this up so that my 'second' 192.168.0.1+ range network gets an internet connection from the 192.168.1.50 DHCP Router but can assign out IPs to Computers connected to the Server network? 

    The Server i'm using for the Domain Controller is a HP ProLiant ML110 which has both a NIC and a Management NIC. 

    Sorry i'm a newbie and this may all be impossible, but I really appreciate any help! 

     

    PS.

     

    I'm sort of wanting what this guy is wanting; http://www.tomshardware.co.uk/foru [...] al-trouble 

    But the resolution there wouldn't be appropriate!


    Thanks

    Tuesday, July 05, 2011 8:19 PM

Answers

  • Hello,

     for my Windows Server 2008 R2 Domain Controller to hand out DHCP addresses of 192.168.0.50 - 192.168.0.100 and have a static IP of 192.168.0.1

    it should be 192.168.0.50 - 99 and not 100 to avoid DHCP conflits.

    How would I be able to set this up so that my 'second' 192.168.0.1+ range network gets an internet connection from the 192.168.1.50 DHCP Router but can assign out IPs to Computers connected to the Server network? 

    You have to specify the gateway option with 192.168.1.50 IP address. If you have computers in other networks, you can configure DHCP Relay Agent to forward DHCP packets to the DHCP server and create a scope for them.

    The Server i'm using for the Domain Controller is a HP ProLiant ML110 which has both a NIC and a Management NIC. 

    Totally disagree. Multiohoming a DC is not recommended as it causes DNS problems => AD problems.

    More here: http://msmvps.com/blogs/acefekay/archive/2009/08/17/multihomed-dcs-with-dns-rras-and-or-pppoe-adapters.aspx

    If you still want to use two NIC cards then you have to disable DNS registration on one of them.

     


    This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

    Microsoft Student Partner 2010 / 2011
    Microsoft Certified Professional
    Microsoft Certified Systems Administrator: Security
    Microsoft Certified Systems Engineer: Security
    Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows 7, Configuring
    Microsoft Certified IT Professional: Enterprise Administrator

     

    • Marked as answer by Tiger Li Tuesday, July 12, 2011 10:46 AM
    Tuesday, July 05, 2011 9:35 PM
  • You can superscope to achieve your Lab scenario of having a single DHCP server... look at this. You will need a routing device to route between the two subnets.

     

     

     


    Miguel Fra / Falcon IT Services
    Computer & Network Support, Miami, FL
    Visit our Knowledgebase and Support Sharepoint Site


    • Marked as answer by Tiger Li Tuesday, July 12, 2011 10:46 AM
    Tuesday, July 05, 2011 9:38 PM

All replies

  • Hello,

     for my Windows Server 2008 R2 Domain Controller to hand out DHCP addresses of 192.168.0.50 - 192.168.0.100 and have a static IP of 192.168.0.1

    it should be 192.168.0.50 - 99 and not 100 to avoid DHCP conflits.

    How would I be able to set this up so that my 'second' 192.168.0.1+ range network gets an internet connection from the 192.168.1.50 DHCP Router but can assign out IPs to Computers connected to the Server network? 

    You have to specify the gateway option with 192.168.1.50 IP address. If you have computers in other networks, you can configure DHCP Relay Agent to forward DHCP packets to the DHCP server and create a scope for them.

    The Server i'm using for the Domain Controller is a HP ProLiant ML110 which has both a NIC and a Management NIC. 

    Totally disagree. Multiohoming a DC is not recommended as it causes DNS problems => AD problems.

    More here: http://msmvps.com/blogs/acefekay/archive/2009/08/17/multihomed-dcs-with-dns-rras-and-or-pppoe-adapters.aspx

    If you still want to use two NIC cards then you have to disable DNS registration on one of them.

     


    This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

    Microsoft Student Partner 2010 / 2011
    Microsoft Certified Professional
    Microsoft Certified Systems Administrator: Security
    Microsoft Certified Systems Engineer: Security
    Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows 7, Configuring
    Microsoft Certified IT Professional: Enterprise Administrator

     

    • Marked as answer by Tiger Li Tuesday, July 12, 2011 10:46 AM
    Tuesday, July 05, 2011 9:35 PM
  • You can superscope to achieve your Lab scenario of having a single DHCP server... look at this. You will need a routing device to route between the two subnets.

     

     

     


    Miguel Fra / Falcon IT Services
    Computer & Network Support, Miami, FL
    Visit our Knowledgebase and Support Sharepoint Site


    • Marked as answer by Tiger Li Tuesday, July 12, 2011 10:46 AM
    Tuesday, July 05, 2011 9:38 PM