After the template is in place, additional networks can be added, changes to
network rules can be made, and any additional customization required can be performed.
12.155.166.151
4. ISA Server receives response from
10.10.10.20 and sends it to the client,
translating it to appear as it is coming
from 12.155.166.151.
Web Server (www.companyabc.com)
10.10.10.1
10.10.10.20
10.10.10.1
Internet
Internal Network (10.10.10/24)
3. Web Server receives
request from 10.10.10.1,
processes it, and sends
the response back.
2. ISA Server performs
NAT Translation,
changing the destination
packet to 10.10.10.20.
1. Client request for
www.companyabc.com
sent to 12.155.166.151.
FIGURE 3.6 Understanding Network Address Translation (NAT).
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3
Configuring Networks with ISA Console Network Wizards and Tools
In the following step-by-step procedure, the New Network Wizard is used to apply a 3-Leg
Perimeter network template. The same general approach can be used when applying any
of the other templates as well.
1. Open the ISA Server Console by clicking on Start, All Programs, Microsoft ISA Server,
ISA Server Management.
2. Select the Networks node by clicking on it in the console tree.
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