pinging hostnames

I'm a networking novice.

I've three machines. I can ping them by IP addresses. I can't ping them by
names.

This is the setup:

Win2k3-West ----- Win2k3-Router ----- Win2k3-East-DC

[1]
Machine name: Win2k3-West
IP address: 172.16.1.2
Mask: 255.255.255.0
Default gway: 172.16.1.1
Pref. DNS: 127.0.0.1

[2]
Machine name: Win2k3-Router
RRAS enabled

IP address: 172.16.1.1
Mask: 255.255.255.0
Default gway: blank
Pref. DNS: 127.0.0.1

IP address: 172.16.2.1
Mask: 255.255.255.0
Default gway: blank
Pref. DNS: 127.0.0.1

[3]
Machine name: Win2k3-East-DC
Domain controller

IP address: 172.16.2.2
Mask: 255.255.255.0
Default gway: 172.16.2.1
Pref. DNS: 127.0.0.1

From Win2k3-West, I can ping 172.16.2.2. I can't ping Win2k3-East-DC.
From Win2k3-East-DC, I can ping 172.16.1.2. I can't ping Win2k3-West.

I will appreciate your help.

Thank you.

which one is your DNS server? use the real DNS server IP instead of 127.0.0.1. also you may try to enable NetBIOS over tcp/ip.

Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, VPN & 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.
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.
"bill tie" <(E-Mail Removed)> wrote in message news:5CAC9644-EF90-42EE-8C86-(E-Mail Removed)...

I'm a networking novice.

I've three machines. I can ping them by IP addresses. I can't ping them by
names.

This is the setup:

Win2k3-West ----- Win2k3-Router ----- Win2k3-East-DC

[1]
Machine name: Win2k3-West
IP address: 172.16.1.2
Mask: 255.255.255.0
Default gway: 172.16.1.1
Pref. DNS: 127.0.0.1

[2]
Machine name: Win2k3-Router
RRAS enabled

IP address: 172.16.1.1
Mask: 255.255.255.0
Default gway: blank
Pref. DNS: 127.0.0.1

IP address: 172.16.2.1
Mask: 255.255.255.0
Default gway: blank
Pref. DNS: 127.0.0.1

[3]
Machine name: Win2k3-East-DC
Domain controller

IP address: 172.16.2.2
Mask: 255.255.255.0
Default gway: 172.16.2.1
Pref. DNS: 127.0.0.1

From Win2k3-West, I can ping 172.16.2.2. I can't ping Win2k3-East-DC.
From Win2k3-East-DC, I can ping 172.16.1.2. I can't ping Win2k3-West.

I will appreciate your help.

Thank you.

Robert,

Thank you for your reply.

> which one is your DNS server?

I have DNS running on Win2k3-East-DC. Should there be something else in my
setup? Where?

> you may try to enable NetBIOS over tcp/ip

I investigated this before my first post. How do I enable NetBIOS? On
which machines?

Hi Bill

Ensure the other machines have the DNS server IP address in the TCP/IP
settings. Also ensure that the other machines have A records in the DNS
server. If you're using DHCP then it is most likely (due to dynamic DHCP)
that the A record already exists.

If you enable Netbios on all of the machines it's a much easier protocol and
you don't have to go adding host names to DNS lists and the name resolution
works automatically

Good luck

Jonny

"bill tie" <(E-Mail Removed)> wrote in message
news:543D8CFB-8328-4CA5-AB6B-(E-Mail Removed)...
>
> Robert,
>
> Thank you for your reply.
>
>> which one is your DNS server?
>
> I have DNS running on Win2k3-East-DC. Should there be something else in
> my
> setup? Where?
>
>> you may try to enable NetBIOS over tcp/ip
>
> I investigated this before my first post. How do I enable NetBIOS? On
> which machines?
>

Jonny,

Thank you for your reply.

The setup:

Win2k3-West ----- Win2k3-Router ----- Win2k3-East-DC

[1]
Machine name: Win2k3-West
IP address: 172.16.1.2
Mask: 255.255.255.0
Default gway: 172.16.1.1
Pref. DNS: 172.16.1.1

- This machine is in a workgroup.

[2]
Machine name: Win2k3-East-DC

IP address: 172.16.2.2
Mask: 255.255.255.0
Default gway: 172.16.2.1
Pref. DNS: 172.16.2.1

- This machine has DHCP, DNS and Active Directory.
- The domain name is "company.local".

[3]
Machine name: Win2k3-Router

IP address: 172.16.1.1
Mask: 255.255.255.0
Default gway: blank
Pref. DNS: blank

IP address: 172.16.2.1
Mask: 255.255.255.0
Default gway: blank
Pref. DNS: blank

- I installed DNS on this machine.
- In Forward Lookup Zones, I created "company.local" zone of type secondary.
- In Forward Lookup Zones, I created "win2k3-west" zone of type standard
primary.

[4]
All four interfaces have under "Advanced TCP/IP Settings" > "WINS" > Enable
NetBIOS over TCP/IP checked.

[5]
From Win2k3-West, I can ping win2k3-east-dc.company.local. I can't ping
win2k3-east-dc.
From Win2k3-East-DC, I can't ping win2k3-west.

What am I missing?

The bit about Netbios isn't strictly true. It will not just work in this
case. Name resolution using Netbios relies on LAN broadcasts. These servers
are not all in the same IP subnet, so name resolution by broadcast will
fail. You would need a WINS server for it to work.

Jonny wrote:
> Hi Bill
>
> Ensure the other machines have the DNS server IP address in the TCP/IP
> settings. Also ensure that the other machines have A records in the
> DNS server. If you're using DHCP then it is most likely (due to
> dynamic DHCP) that the A record already exists.
>
> If you enable Netbios on all of the machines it's a much easier
> protocol and you don't have to go adding host names to DNS lists and
> the name resolution works automatically
>
> Good luck
>
> Jonny
>
> "bill tie" <(E-Mail Removed)> wrote in message
> news:543D8CFB-8328-4CA5-AB6B-(E-Mail Removed)...
>>
>> Robert,
>>
>> Thank you for your reply.
>>
>>> which one is your DNS server?
>>
>> I have DNS running on Win2k3-East-DC. Should there be something
>> else in my
>> setup? Where?
>>
>>> you may try to enable NetBIOS over tcp/ip
>>
>> I investigated this before my first post. How do I enable NetBIOS? On
>> which machines?

Bill,

Thank you for joining in. I know you from the Virtual PC newsgroup. In
fact, the three machines are VMs.

[1]
> You would need a WINS server for it to work.

On which of the three machines should I install WINS?

[2]
- Win2k3-East is in a workgroup. Should I put it into a domain of its own?
- What's the best way/setup to get Win2k3-East and Win2k3-West-DC to talk to
one another?

I wouldn't use WINS at all. DNS should do what you want. And your setup
with a multihomed server connecting the two subnets is not a great idea with
Netbios names.

If you are running a domain you must already have DNS. Setting all
machines to use that DNS server and register with it should get you going.

bill tie wrote:
> Bill,
>
> Thank you for joining in. I know you from the Virtual PC newsgroup.
> In fact, the three machines are VMs.
>
> [1]
>> You would need a WINS server for it to work.
>
> On which of the three machines should I install WINS?
>
> [2]
> - Win2k3-East is in a workgroup. Should I put it into a domain of
> its own?
> - What's the best way/setup to get Win2k3-East and Win2k3-West-DC to
> talk to one another?