Wrong DNS Server IP Address showing on the client computer

R

Ryan Cabanas

Hi,

I'm setting up my first test network using just a 2000 Server and a
2000 Pro client. I have the server's ip address set to 10.10.1.10 and
I have the it pointing to itself for the DNS address. Whenever I do
an 'ipconfig /all' on the client, though, it shows the DNS ip address
as being 10.10.1.1. I can't figure out what I need to do. Shouldn't
it be 10.10.1.10? Here are the 'ipconfig /all' shots for the server
and for the client:


INFO FROM THE SERVER:
---------------------

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : testserver02
Primary DNS Suffix . . . . . . . : TestDomain.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TestDomain.local

Ethernet adapter 3Com EtherLink XL 10-100 PCI TX NIC (3C905B-TX):

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100
PCI TX NIC
(3C905B-TX)
Physical Address. . . . . . . . . : 00-01-02-EE-F0-95
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.1.10
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 10.10.1.10



INFO FROM THE CLIENT:
---------------------

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : testclient01
Primary DNS Suffix . . . . . . . : TestDomain.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TestDomain.local
TestDomain

Ethernet adapter 3Com EtherLink XL 10-100 PCI TX NIC (3C905B-TX):

Connection-specific DNS Suffix . : TestDomain
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100
PCI TX NIC
(3C905B-TX)
Physical Address. . . . . . . . . : 00-01-02-E8-40-E7
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 10.0.0.3
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 10.10.1.10
DNS Servers . . . . . . . . . . . : 10.10.1.1
Lease Obtained. . . . . . . . . . : Wednesday, December 17,
2003 3:48:47
PM
Lease Expires . . . . . . . . . . : Saturday, December 27,
2003 6:48:47
PM



Thanks for the help.

Ryan Cabanas
 
A

Ace Fekay [MVP]

In
Ryan Cabanas said:
Hi,

I'm setting up my first test network using just a 2000 Server and a
2000 Pro client. I have the server's ip address set to 10.10.1.10 and
I have the it pointing to itself for the DNS address. Whenever I do
an 'ipconfig /all' on the client, though, it shows the DNS ip address
as being 10.10.1.1. I can't figure out what I need to do. Shouldn't
it be 10.10.1.10? Here are the 'ipconfig /all' shots for the server
and for the client:


INFO FROM THE SERVER:
---------------------

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : testserver02
Primary DNS Suffix . . . . . . . : TestDomain.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TestDomain.local

Ethernet adapter 3Com EtherLink XL 10-100 PCI TX NIC (3C905B-TX):

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100
PCI TX NIC
(3C905B-TX)
Physical Address. . . . . . . . . : 00-01-02-EE-F0-95
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.1.10
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 10.10.1.10



INFO FROM THE CLIENT:
---------------------

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : testclient01
Primary DNS Suffix . . . . . . . : TestDomain.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TestDomain.local
TestDomain

Ethernet adapter 3Com EtherLink XL 10-100 PCI TX NIC (3C905B-TX):

Connection-specific DNS Suffix . : TestDomain
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100
PCI TX NIC
(3C905B-TX)
Physical Address. . . . . . . . . : 00-01-02-E8-40-E7
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 10.0.0.3
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 10.10.1.10
DNS Servers . . . . . . . . . . . : 10.10.1.1
Lease Obtained. . . . . . . . . . : Wednesday, December 17,
2003 3:48:47
PM
Lease Expires . . . . . . . . . . : Saturday, December 27,
2003 6:48:47
PM



Thanks for the help.

Ryan Cabanas
Click to expand...

Check your DHCP Scope/Server Option 006 for what DNS address you gave it.

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
K

Kevin D. Goodknecht [MVP]

In
Ryan Cabanas said:
Hi,

I'm setting up my first test network using just a 2000 Server and a
2000 Pro client. I have the server's ip address set to 10.10.1.10 and
I have the it pointing to itself for the DNS address. Whenever I do
an 'ipconfig /all' on the client, though, it shows the DNS ip address
as being 10.10.1.1. I can't figure out what I need to do. Shouldn't
it be 10.10.1.10?
Click to expand...

Your DC has no gateway configured, it will not be able to make an outbound
connection to the internet without a gateway configured.

According to the ipconfig on your client this server has DHCP configured on
it.
So, you need to use the DHCP snap in and configure your scope options.
You need:
003 Router (you internet router's IP address, this will be your default
Gateway)
006 DNS server (configure 10.10.1.10 only if this is your only DC)
015 DNS Domain name (the DNS name of you domain, TestDomain.local)
044 (WINS Servers)
046 (WINS/NBT Node type)
Here are the 'ipconfig /all' shots for the server
and for the client:


INFO FROM THE SERVER:
---------------------

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : testserver02
Primary DNS Suffix . . . . . . . : TestDomain.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TestDomain.local

Ethernet adapter 3Com EtherLink XL 10-100 PCI TX NIC (3C905B-TX):

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100
PCI TX NIC
(3C905B-TX)
Physical Address. . . . . . . . . : 00-01-02-EE-F0-95
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.1.10
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :<-------No Gateway (manually
Click to expand...
configure this if you need internet access or if you have a router)
DNS Servers . . . . . . . . . . . : 10.10.1.10



INFO FROM THE CLIENT:
---------------------

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : testclient01
Primary DNS Suffix . . . . . . . : TestDomain.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TestDomain.local
TestDomain<---This name should
Click to expand...
not be needed, it is only going to increase DNS traffic if DNS does not have
a zone for this name besides it is a single label name and not recommended.
Ethernet adapter 3Com EtherLink XL 10-100 PCI TX NIC (3C905B-TX):

Connection-specific DNS Suffix . : TestDomain<----Again this is a
Click to expand...
Single label DNS suffix and should not be needed or is it recommended and
will cause DNS registration errors.

Default Gateway . . . . . . . . . :<--------This interface has no
Click to expand...
Gateway since this is a DHCP client you need option 003 configured
DHCP Server . . . . . . . . . . . : 10.10.1.10
DNS Servers . . . . . . . . . . . : 10.10.1.1<-----Your DHCP
Click to expand...
service is giving the wrong DNS address for option 006

Also if you have multiple subnets and Network Neighborhood is important to
you, and legacy clients (Win9x NT4) you need WINS and configure these:
option 044 (WINS Servers)
option 046 (WINS/NBT Node type)
 
A

Ace Fekay [MVP]

In
Kevin D. Goodknecht said:
In

Your DC has no gateway configured, it will not be able to make an
outbound connection to the internet without a gateway configured.

According to the ipconfig on your client this server has DHCP
configured on it.
So, you need to use the DHCP snap in and configure your scope options.
You need:
003 Router (you internet router's IP address, this will be your
default Gateway)
006 DNS server (configure 10.10.1.10 only if this is your only DC)
015 DNS Domain name (the DNS name of you domain, TestDomain.local)
044 (WINS Servers)
046 (WINS/NBT Node type)

configure this if you need internet access or if you have a router)
not be needed, it is only going to increase DNS traffic if DNS does
not have a zone for this name besides it is a single label name and
not recommended.

Single label DNS suffix and should not be needed or is it recommended
and will cause DNS registration errors.


Gateway since this is a DHCP client you need option 003 configured

service is giving the wrong DNS address for option 006

Also if you have multiple subnets and Network Neighborhood is
important to you, and legacy clients (Win9x NT4) you need WINS and
configure these: option 044 (WINS Servers)
option 046 (WINS/NBT Node type)


--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
============================
Click to expand...

Kevin..
Good eye.
:)

But one thing, he might be using Proxy's or ISA's web caching service for
web access which doesn;t require a gateway but just the Proxy address in the
browser.


--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
D

David

These lines from the client configuration tell me that the
DHCP server is set up incorrectly. All of the following
info was obtained from DHCP and it is where the incorrect
DNS server info is coming from.

DHCP Enabled. . . . . . . . . . . : Yes
IP Address. . . . . . . . . . . . : 10.0.0.3
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 10.10.1.10
DNS Servers . . . . . . . . . . . : 10.10.1.1
 
A

Ace Fekay [MVP]

In
David said:
These lines from the client configuration tell me that the
DHCP server is set up incorrectly. All of the following
info was obtained from DHCP and it is where the incorrect
DNS server info is coming from.

DHCP Enabled. . . . . . . . . . . : Yes
IP Address. . . . . . . . . . . . : 10.0.0.3
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 10.10.1.10
DNS Servers . . . . . . . . . . . : 10.10.1.1
Click to expand...

Going back to what Kevin suggested, on your DHCP Server, which apparently
is, according to the above ipconfig you provided, 10.10.1.10, did you check
Scope Option and/or Server Option 006 to see what DNS server is set? Scope
Option will override the Server Option, if it;'s set at those two places.
Look closely.

Seems pretty simple from this ipconfig to where the problem is coming from.

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 

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