Under Rule Action, select Allow and click Next.
5. Under the setting to which protocols the rule applies, select All Outbound Traffic
and click Next.
6. On the subsequent dialog box, source network(s) for the rule can be created. Click
the Add button.
7. From the Add Network Entities dialog box, expand the Networks node and click on
the VPN Clients network. Click Add when selected.
8. Click Close and then click Next.
9. The subsequent dialog box allows for the destination network to be chosen. Click
the Add button.
10. Expand the Networks node and click on the internal network to select it. Click Add
and then Close.
11. Under the User Sets dialog box, keep the default at All Users and click Next.
12. Review the rule settings in the confirmation dialog box, similar to what is shown in
Figure 9.8. Click Finish when complete.
13. Click the Apply button at the top of the Details pane and then click OK.
FIGURE 9.8 Finalizing a firewall rule for VPN clients.
236 CHAPTER 9 Enabling Client Remote Access with ISA Server 2006 VPNs
NOTE
Using this approach, granular rules can be established to allow VPN clients access to
only specific internal resources.
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