155.166.151 are
translated into internal IP addresses such as 10.10.10.21 automatically) or Route (where
FIGURE 9.3 Creating a network rule for the VPN Clients network.
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Enabling VPN Functionality in ISA Server
FIGURE 9.4 Establishing the network relationship between networks.
the IP addresses of the two networks are linked and made routable through ISA) and
continue with the following steps:
1. Click Next to continue.
2. Click Finish when prompted.
3. Review the changes and then click the Apply button at the top of the Details pane
to apply the changes and click OK when complete.
Different network relationships and network rules can be set up between the various
networks that are established on the ISA server. The important factor to keep in mind is
that the VPN Clients network needs to have some type of relationship set up between the
logical network in which the clients are held and the various internal networks at the
organization. If this is not done, the VPN clients cannot access any resources at all, even
with the proper firewall rules established. The traffic from their network will simply be
dropped by the ISA server.
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