Configuration IP Address

August 5, 2009 at 04:05:42
Specs: Windows Server 2003 SBS

Hi,
I have DSL modem + 2 NICs + Firewall Hardware. But i very confused, no sure for the configuration. Could you please advise me

Thanks.


1. Network cable is link from modem to Firewall hardware (192.168.1.1) WAN port.
IP Address: <ISP>
Subnet Mark: <ISP>
Default Gateway: <ISP>
Preferred DNS Server: <ISP>
Secondary DNS Server: 192.168.1.4

2. From the WAN Port (firewall hardware) have a network cable to Server NIC#1 with below setting:-
IP Address: 192.168.1.3
Subnet Mark: 255.255.255.0
Default Gateway: 192.168.1.1
Preferred DNS Server:
Secondary DNS Server:

3. From the Server NIC#2 to switch with below setting:-
IP Address: 192.168.1.4
Subnet Mark: 255.255.255.0
Default Gateway: 192.168.0.1
Preferred DNS Server: 192.168.1.4
Secondary DNS Server:

Thanks.

Regards,
Danny


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#1
August 5, 2009 at 05:07:24

What's the reason for the 2nd NIC? You're making things much harder that way. In most cases they are a problem in windows. If you really insist on having it, the default gateway wrong on NIC #2. Remove it completely.

3. From the Server NIC#2 to switch with below setting:-
IP Address: 192.168.1.4
Subnet Mark: 255.255.255.0
Default Gateway: 192.168.0.1
Preferred DNS Server: 192.168.1.4
Secondary DNS Server:

Secondly, I don't understand the firewall hardware.

How do you know when a politician is lying? His mouth is moving.


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#2
August 5, 2009 at 08:12:37

subnet addressing is all wrong in that they are all in the same subnet.

"2. From the WAN Port (firewall hardware"
You really mean LAN port. Wan port is already used in 1. :-)

Here is a list of what is wrong.

1. secondary dns server is wrong. Should be isp not internal dns server.

2. nic 1 and nic 2 can not be in the same subnet. You are setting the server up to route [RRAS] thru the server. If you want 192.168.1.3 for nic1 than nic2 has to be in a different subnet like 192.168.0.1

Your MS dhcp server would be bound to nic2 [not nic1] and would be giving out the following
192.168.0.x
255.255.255.0
192.168.0.1 gateway
192.168.0.1 DNS


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#3
August 5, 2009 at 19:55:15

Hi All experts,

Thanks for your fast reply. Previous,my server have 2 NICs and DSL modem.

NIC#1 which is from Internal with below setting:-
IP Address: <ISP>
Subnet Mark: <ISP>
Default Gateway: <ISP>
Preferred DNS Server: 192.168.1.4
Secondary DNS Server: <ISP>

NIC#2 which is for internal networking with below setting:-
IP Address: 192.168.1.4
Subnet Mark: 255.255.255.0
Default Gateway:
Preferred DNS Server: 192.168.1.4
Secondary DNS Server:


Question: -

For network security purpose, i add a firewall hardware (D-Link DFL800) and 192.168.1.1 is belong to the firewall hardawre itself.

I need to modify all the link and configuration. Could you experts can advise me?


Thanks.


Regards,
Danny


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Related Solutions

#4
August 6, 2009 at 13:08:21

A machine isn't protected if one of the NICs has an external IP address. Now that you changed that, the network is more secure. I still don't see the need for 2 NICs. If you want 2 NICs, follow Wanderer's configuration.

How do you know when a politician is lying? His mouth is moving.


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