Internet Connection Sharing?

[cYbErAnKhAmUn]

Config:
Win2k
Client for MS
TCP\IP
1x NIC
1X ISDN dial-up modem (IC shared - On demand dailing, pop3 and smtp enabled)
10 workstations
Straight forward networking! (DNS, DHCP etc. is all working fine!)

Here's the problem:
If I open IE or Outlook on any workstation, it fails to connect via ICS, but if I establish an Internet connection on the server first and then open IE on the w/s, it connects fine.

Any one out there seen this (and resolved it maybe)?

[Daemon]

Is this for house or work?

Are you useing the Microsoft proxy client?
Are you useing Micorsoft INternet shareing?
Did you put the gate way and DNS to the primary computer?

If it is at home I would setup a computer with 2k and enable INternet sharing. Then Go onto all the remote computers and put the gateway and DNS as the win2k box that has internet shareing on. I do this at my house with 4 computers, works great.

[cYbErAnKhAmUn]

1> Company use
2> MS Proxy or ISA = No
3> Standard Win2k Internet Connection Sharing
4> Server IP, Gateway and DNS = 192.168.0.1
5> Subnet = 255.255.255.0
6> Workstations IP = DHCP
7> Workstations Gateway and DNS = 192.168.0.1

[Daemon]

ahh found the problem, if you want to use the gateway and dns on the remote machines they need to be static ips not dhcp <IMG SRC="smilies/smile.gif" border="0">

try haveing the remote machine have a static ip, give it 192.168.0.2

[Daemon]

Found this on microsofts site for internet shareing

<h2>Configuration and Usage Issues</h2>

The Internet Connection Sharing feature is intended for use in a small office or home office in which the network configuration and the Internet connection are managed by the Windows 2000-based computer on which the shared connection resides. It is assumed that on its network, this computer is the only Internet connection, is the only gateway to the Internet, and that it sets up all internal network addresses.

You cannot modify the default network configuration after enabling ICS. This includes items such as the range of private IP addresses that are handed out (DHCP allocator), enabling or disabling DNS, configuring a range of public IP addresses, or configuring inbound mappings.

If your home office users need to gain access to a corporate network that is connected to the Internet by a tunnel server from a ICS network, they need to create a virtual private network (VPN) connection to tunnel from the computer on the ICS network to the corporate tunnel server on the Internet. The VPN connection is authenticated and secure, and creating the tunneled connection allocates proper IP addresses, DNS server addresses, and WINS server addresses for the corporate network.

You may need to configure programs and services to work properly across the Internet. For example, if users on your home network want to play a game with other users on the Internet, the game must be configured on the connection in which ICS is enabled. Services that you provide must be configured so that Internet users can gain access to them. For example, if you are hosting a Web server on your home network and you want Internet users to be able to connect to it, you must configure the Web Server service.

[cYbErAnKhAmUn]

Hmmm, I'm not so sure that it's an IP addy problem. I have tried one of the workstations on a staic addy (192.168.0.2), but to no avail. Remember that it is only the trigger from the workstation to tell the server to dial that doesn't work. Once you have established an Internet connection manually on the server, then the workstation can access the Internet. In other words, if I open IE on a workstation, the server should automatically launch the dial-up connection, connect to the Internet and allow the workstations to browse (this doesn't happen). But when I sit @ the server and manually connect to the Net, I can go to any workstation, launch IE and it would browse the Net fine. So the functionality is there, it is just that the workstations don't trigger the server to automatically dial (Dial-on-demand is enabled on the server).

[Daemon]

yeah, but if you want to use the internet shareing you must either setup all computers as dhcp or all on static, I had this problem where I had 2 computers on static then on on dhcp and I just changed them all on static and it worked.

[cYbErAnKhAmUn]

All the clients are DHCP. I have a similar setup elsewhere with a mixture of static and DHCP, and it's working fine there.
I think I'll just re-do the installation as it was an upgrade from NT4. Maybe there are some under-lying issues that were not resolved prior to the upgrade.

[CJK]

One thing to keep in mind. If you have a 2k server or any server running dns, ICS will not work at all. You have to set it up differently using NAT. I forget exactly what the other option besides ICS is called but it is on the same menu when you select ICS. Hope this helps.

[cYbErAnKhAmUn]

In terms of the DNS, I have to disagree with you, my friend <IMG SRC="smilies/smile.gif" border="0"> Like I have mentioned before, I have the same setup elsewhere, in fact, I have 3 sites that have the whole shebang from DHCP, DNS, ISA and Exchange2k on one box, and it works like a dream (pretty powerful boxes too!). I know ICS is not the way to go in terms of security, so hence ISA (for the purists out there).
I've tried the NAT route (i.e. using the server as a router or gateway), with the same results.

[Johnny Mongstad]

Hi...I use internet connection sharing between 2 computers running Windows 2000 Professional, and I must say I'm disappointed. I can use mIRC and browse some webpages with .no as a toplevel domain. I'm from Norway so .no is norwegian webpages. I cant browse any other webpages like www.hotmail.com but I can ping them and get reply from them. I can use some ftp servers, but not all. I dont use any firewalls at any of the computers. Do I have to set any policy settings? What is wrong? Any ideas? Please help me out...I really need to share my connection in a proper way.

Thanks,

Johnny Mongstad

[cYbErAnKhAmUn]

If there is no proxy/fw through-out your infrastructure, then maybe your ISP is blocking access to those sites. Give them a call just to make sure. Also, you could try tracing their routes and see where they are dissappearing to...
Or clear out the browser cache...

[Ron Prestenback]

To Cyberankamaun (change your nick man!! <IMG SRC="smilies/smile.gif" border="0"> ) J/K Your problem will be resolved with one of two solutions: 1 - You must make sure that IE is configured to start an internet connection if one doesn't exist. For instance, if this computer was hooked directly up to your DSL modem, and you opened IE, it wouldn't automatically dial out for you. This is a setting that you need to specify. It's been a long time since I used a modem, but I believe that for the most part, IE sets this up for you when you initally set up your internet connection and specify a modem. So most of the time, you're not really going to choose this option, per se, it's just going to work. You would set this option on the Connections page of your Internet Options. Now I'm thinking that since you're actually connected through a NIC, this option will be greyed out. So here's the second solution: On the ICS host machine, you must set up demand dialing. In other words, you must set up the host machine to dial out *for* the other machines when they request an internet connection. I do know how to do this, but I've never done it, so I would have to look through the menus to refamiliarize myself with the process, so if you don't know how to do this yourself, let me know, and I'll get the specifics for ya, and we'll see if that fixes the problem. Exactly how to do it would depend on which option you're presently using to share the connection (i.e.ICS, NAT, etc.)

[Ron Prestenback]

To Jmongstad: Sounds like DNS devolution problem. Check your settings on the DNS page of your internet properties, specifically the parts about whether or not to append primary DNS suffixed and all that. Let me know what that entire page is configured for, and I''ll prob be able to tell you what's wrong.

[Johnny Mongstad]

The machine sharing the connection has to network adapters, one pci ethernet adapter which are connected to a hub and a adapter installed in our ANT box (ADSL). I use internet connection sharing for the last one, and it's set's the ip-address for the ethernet adapter to 192.168.01. Here is my configuration:

Host machine:

NTS Enternet P.P.P.o.E :

-Using internet connection sharing

General properties:
-Obtain an ip-address automatically
-Obtain DNS server address automatically

Advanced TCP/IP Settings
-IP Settings
Default Gateway: 146.172.36.125

-DNS
Append primary and connection specific
DNS suffixes
-Append parent suffixes of the
primary DNS suffix
Register this connections addresses in
DNS

-Wins
Enable LMHOSTS Lookup
Enable Netbios over TCP/IP

PCI Fast Ethernet Adapter:


General properties:

Use the following ip-address: 192.168.0.1
Subnetmask: 255.255.255.0
Use the following DNS server addresses: empty

Advanced TCP/IP Settings
-IP Settings 192.168.0.1
Default Gateway: none

-DNS
Append primary and connection specific
DNS suffixes
-Append parent suffixes of the
primary DNS suffix
Register this connections addresses in
DNS

-Wins
Enable LMHOSTS Lookup
Enable Netbios over TCP/IP

Client machine:

General properties:
-Obtain an ip-address automatically
-Obtain DNS server address automatically

Advanced TCP/IP Settings
-IP Settings
Default Gateway: none

-DNS
Append primary and connection specific
DNS suffixes
-Append parent suffixes of the
primary DNS suffix
Register this connections addresses in
DNS

-Wins
Enable LMHOSTS Lookup
Enable Netbios over TCP/IP


Well that is how my configuration looks
If you have any comments or ideas how I can get my problem solved I would be grateful