ZyXEL Communications 50 manual 21

ZyWALL 50 Internet Security Gateway

Figure 6-19 Example 3: Final Menu 15.1.1..................................................................................................	6-21
Figure 6-20 Example 3: Menu 15.2..............................................................................................................	6-21
Figure 6-21 NAT Example 4 ........................................................................................................................	6-22
Figure 6-22 Example 4: Menu 15.1.1.1 — Address Mapping Rule .............................................................	6-23
Figure 6-23 Example 4: Menu 15.1.1 — Address Mapping Rules...............................................................	6-23
Figure 7-1 ZyWALL Firewall Application .....................................................................................................	7-3
Figure 7-2 Three-Way Handshake..................................................................................................................	7-5
Figure 7-3 SYN Flood....................................................................................................................................	7-5
Figure 7-4 Smurf Attack.................................................................................................................................	7-6
Figure 7-5 Stateful Inspection ........................................................................................................................	7-8
Figure 8-1 Menu 21 — Filter and Firewall Setup ..........................................................................................	8-1
Figure 8-2 Menu 21.2 — Firewall Setup........................................................................................................	8-2
Figure 8-3 Example Firewall Log ..................................................................................................................	8-2
Figure 9-1 Main Menu ...................................................................................................................................	9-2
Figure 9-2 Enabling the Firewall....................................................................................................................	9-3
Figure 9-3 E-mail Screen................................................................................................................................	9-4
Figure 9-4 E-mail Log....................................................................................................................................	9-7
Figure 9-5 Attack Alert...................................................................................................................................	9-9
Figure 10-1 LAN to WAN Traffic ................................................................................................................	10-3
Figure 10-2 WAN to LAN Traffic ................................................................................................................	10-4
Figure 10-3 Firewall Rules Summary — First Screen .................................................................................	10-5
Figure 10-4 Creating/Editing A Firewall Rule............................................................................................	10-10
Figure 10-5 Adding/Editing Source and Destination Addresses.................................................................	10-12
Figure 10-6 Timeout Screen .......................................................................................................................	10-14
Figure 11-1 Custom Ports.............................................................................................................................	11-1
Figure 11-2 Creating/Editing A Custom Port ...............................................................................................	11-3
Figure 12-1 Log Screen................................................................................................................................	12-1

List Of Figures xxi