Dual NIC Setup problem with DNS

Discussion in 'Windows Networking' started by al_dev, Apr 23, 2006.

  1. al_dev

    al_dev Guest

    Hi,
    i'm having one problem setting up my home network using Dual NICs and
    switch.

    Win2k3 server (192.168.0.1)
    NIC1 - ISP - receives IP info automatically from cable modem
    NIC2 - internal - hardcoded ip (192.168.0.1) on 255.255.255.0 - goe
    to a linksys switch
    Using NAT/Router Firewall
    Active Directory
    I'm using DHCP with these options
    003 Router 192.168.0.1
    005 Name Servers 192.168.0.1
    006 DNS Servers 192.168.0.1
    015 DNS Domain Name (my FQDN is AGMTECH.dom)
    DNS - automatically set to create A records for clients that reques
    it
    Internet connection is up and running

    WinXP client
    one NIC that is using the DHCP from the server and is obtaining leas
    and ip info automatically.
    Internet connection is up and running through the server.

    Everything for the most part is working except i think i have a dn
    problem, on the client i AM able to ping the server by name and ip bu
    am not able to add it to the domain. internet is up and running w/ou
    problems.
    I keep getting "the network path cannot be found" when i try to add i
    to the domain.
    I confirmed on the workstation that it is using the correct ip for m
    DNS server(192.168.0.1), DHCP is working etc

    i went to the server to check DNS because i'm expecting to see the
    record dynamically created for the client in the DNS forward looku
    zone. (I set it up to automatically do this or i thought i did). I di
    not see the A record in there at all.
    At this point on the server, i am NOT able to ping the clien
    workstation by name or IP address and i can't see that A record.

    So i created the A record for the client myself in DNS and i stil
    can't ping the client nor add the client to the domain. am i missing
    dns suffix somewhere?

    It appears that i have 2 problems here that (to me) seem to be cause
    by the same issue?

    i've been spinning my wheels for a while on this and can't figure i
    out, one thing i haven't configured as i don't know and am not sure i
    i need it is setting up a "Static Route" in the NAT configuration.

    Your help would be greatly appreciated.

    thank you

    A
     
    al_dev, Apr 23, 2006
    #1
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  2. It is not recommended to install DC and DNS on a multihomed computer. Otherwise, you may have a name resolution and connectivity issue. You may want to disable all connections to register A record on DNS except LAN. these links may help,

    Name resolution on VPN VPN server is a Virtual Multihomed Server. After enabling RRAS on a DC with WINS and DNS server, you may have some Master Browser, WINS or/and connectivity ...
    www.chicagotech.net/nameresolutionpnvpn.htm

    Troubleshooting DNS It is not recommended to install DNS on a multihomed server. ... server and the the DC server points to only itself for DNS by its actual tcp/ip address, ...
    www.chicagotech.net/dnstroubleshooting.htm



    Bob Lin, MS-MVP, MCSE & CNE
    Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
    How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com

    Hi,
    i'm having one problem setting up my home network using Dual NICs and a
    switch.

    Win2k3 server (192.168.0.1)
    NIC1 - ISP - receives IP info automatically from cable modem
    NIC2 - internal - hardcoded ip (192.168.0.1) on 255.255.255.0 - goes
    to a linksys switch
    Using NAT/Router Firewall
    Active Directory
    I'm using DHCP with these options
    003 Router 192.168.0.1
    005 Name Servers 192.168.0.1
    006 DNS Servers 192.168.0.1
    015 DNS Domain Name (my FQDN is AGMTECH.dom)
    DNS - automatically set to create A records for clients that request
    it
    Internet connection is up and running

    WinXP client
    one NIC that is using the DHCP from the server and is obtaining lease
    and ip info automatically.
    Internet connection is up and running through the server.

    Everything for the most part is working except i think i have a dns
    problem, on the client i AM able to ping the server by name and ip but
    am not able to add it to the domain. internet is up and running w/out
    problems.
    I keep getting "the network path cannot be found" when i try to add it
    to the domain.
    I confirmed on the workstation that it is using the correct ip for my
    DNS server(192.168.0.1), DHCP is working etc

    i went to the server to check DNS because i'm expecting to see the A
    record dynamically created for the client in the DNS forward lookup
    zone. (I set it up to automatically do this or i thought i did). I did
    not see the A record in there at all.
    At this point on the server, i am NOT able to ping the client
    workstation by name or IP address and i can't see that A record.

    So i created the A record for the client myself in DNS and i still
    can't ping the client nor add the client to the domain. am i missing a
    dns suffix somewhere?

    It appears that i have 2 problems here that (to me) seem to be caused
    by the same issue?

    i've been spinning my wheels for a while on this and can't figure it
    out, one thing i haven't configured as i don't know and am not sure if
    i need it is setting up a "Static Route" in the NAT configuration.

    Your help would be greatly appreciated.

    thank you

    Al
     
    Robert L [MS-MVP], Apr 24, 2006
    #2
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