Avatar of ecommercedeveloper

asked on 

Windows Server 2008, member server networking issue / gateway connection issue

I have a network with two windows 2008 servers

My gateway server Netserver has mutiple network cards , the public one connecting to our router ( )


IP, subnet, gateway


IP, subnet, gateway

Netserver is the AD / DNS Server / DC and all client pc's can access the internet when they use as the gateway


My exchange mail server is a member server and is located on IP

It has a private card


It CAN send emails out and does so fine, however the machine its self has no internet through IE7 and no client pc's can connect to it in this state.

Network shows a diagram with no internet access

Why is this relativly simple network not working ?  I have tried lots of different settings now but still no luck.  Is there a set procedure when changing network card settings to ensure they are correctly adopted ?  At the moment, I change the settings , then disable and reenable the card and the settings kick in.
Server HardwareEmail Servers

Avatar of undefined
Last Comment
Avatar of sysreq2000

Try deleting the gateway for your private IP on Netserver. You should only have one default gateway.

Avatar of raehrlich
Flag of United States of America image

Looking at what you wrote, Netserver is acting as a router for your Exchange Server. Do you have 'Routing and Remote Access' enabled and properly configure on Netserver? You may want to look at this:

Avatar of lnkevin
Flag of United States of America image

Above suggestion is one of it. Check the following instruction from MS on how to set up the network property for ISA on SBS:

Avatar of namol

Raehrlich is on the money with his post.

I have another question though, is this SBS or just straight server 2008? Also, have you considered putting in a firewall/router combo to handle this instead of putting it all on your PDC/AD server?
Avatar of ecommercedeveloper


Its straight windows 2008 server, the router is acting as the firewall also , its BT Business Hub

What I REALLY wanted was both machines live, with exchange sending through its own public IP because it has a second card I could use, however when this scenario is configured the clients cannot reach exchange. You may ask why I want this , the answer being that the IP for this (live) mailserver has been authticated for mail delivery to AOL , HOTMAIL etc as is complete with reverse PTR record from BT

But I reasoned that I cannot have the gatway set to this live IP as the mail would be delivred to the gateway and not to the exchange server

Im sure I am not explaining this well at all, is there a live chat facility on here I can use ?

How can I ensure the settings are correctly applied when changing them on the card ? Microsoft networking gives me lots of different views of the network which dont seem consistent with my setup
Avatar of raehrlich
Flag of United States of America image

Blurred text
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
Avatar of ecommercedeveloper


Ok good, so I will remove that as suggested.  Will that resolve the connectivity issue with the mail server ? ?
Avatar of ecommercedeveloper


WIth that corrected are the mailserver settings of


correct ? or can I have the gateway blank but add as the DNS and then connect my public IP network card as suggested above ?
Server Hardware
Server Hardware

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Top Experts
Get a personalized solution from industry experts
Ask the experts
Read over 600 more reviews


IBM logoIntel logoMicrosoft logoUbisoft logoSAP logo
Qualcomm logoCitrix Systems logoWorkday logoErnst & Young logo
High performer badgeUsers love us badge
LinkedIn logoFacebook logoX logoInstagram logoTikTok logoYouTube logo