RE: ISA 2004 - Internet Access without using Firewall Client

Hello Chris,

Thank you for posting here.

According to your description, I understand that you want to know whether
you can not install ISA firewall client on mobile laptops but meanwhile
make the laptops to access Internet through ISA server. If I have
misunderstood the problem, please don't hesitate to let me know.

Based on my research, we can make the laptops to access Internet without
install ISA firewall client on them.

By default, ISA server on SBS only allows domain user access Internet.
Meanwhile, ISA server has 3 kinds of client: SecureNAT, Web Proxy, Firewall
client. The Web Proxy and Firewall client can provide workstation user
account to ISA server to do authentication. However, the SecureNAT can not
provide authentication.

Therefore, if the laptop can not join domain, even install firewall client
on them, they still can not access Internet.

The laptop is typical SecureNAT client of ISA, I suggest we try the
following steps to resolve this issue:

1. You have to rerun the CEICW to make sure your SBS 2003 server have right
network configuration. Go through the follow KB and Rerun CEICW again
carefully.

How to configure Internet access in Windows Small Business Server 2003
http://support.microsoft.com/kb/825763/en-us

2. Modify the SBS Internet access rule:
a. Click Start, point to All Programs, point to Microsoft ISA Server, and
then click ISA Server Management.

b. In the Microsoft Internet Security and Acceleration Server 2004 console,
expand YourServerName , and then click Firewall Policy.

c. In the center pane, find a policy named SBS Internet Access Rule,
double-click it.

d. Click Users tap in SBS Internet Access Rule Properties window, highlight
SBS Internet Users and click Remove button, then click Add button and
double-click All Users

e. Click OK, then click Apply button to save and apply the new
configuration.

3. Ensure all laptops' default gateway pointing to ISA server internal
network interface.

Hope these steps will give you some help.

Thanks and have a nice day!

Best regards,

Terence Liu(MSFT)

Microsoft CSS Online Newsgroup Support

Get Secure! - www.microsoft.com/security

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| Thread-Topic: ISA 2004 - Internet Access without using Firewall Client
| thread-index: Acd2vjJq5BrmZ8nCRdqgIrLHOilPUQ==
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| From: =?Utf-8?B?Q2hyaXM=?= <chris@xxxxxxxxxxxxxxxxxxxxxxxxx>
| Subject: ISA 2004 - Internet Access without using Firewall Client
| Date: Wed, 4 Apr 2007 06:36:06 -0700
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| Hi,
|
| I have an SBS 2003 SP1 network running and am now wanting to install
| ISA2004. I have read all of the documentation and quite a few of the
posts
| in this newsgroup.
|
| My question is: can I install ISA2004 without installing the firewall
client
| on the workstations? Is it possible to setup a rule or something to
allow
| internet access?
|
| The reason that I want to go this route is that some users will be
pluging
| in their laptops on the internal SBS network, but they will not actually
be
| joining the domain (remaining in a workgroup). Reason for this is that
they
| travel between various offices which are all on different domains, so a
| domain login is not practical.
|
| If proxy settings will need to be changed between offices, we can deal
with
| this, and try a scripted change is necessary on the laptops.
|
| Any help appreciated.
|
| Regards
|
| Chris
|

.