Packet Flow Explore; Chapter 41 Packet Flow Explore; Overview; What You Can Do In This Chapter - ZyXEL Communications ZyWall ATP series User Manual

41.1 Overview

Use this to get a clear picture on how the Zyxel Device determines where to forward a packet and how
to change the source IP address of the packet according to your current settings. This function provides
you a summary of all your routing and SNAT settings and helps troubleshoot any related problems.

41.1.1 What You Can Do in this Chapter

• Use the Routing Status screen (see
each routing function's settings.
• Use the SNAT Status screen (see
conversion (SNAT) flow and each SNAT function's settings.

41.2 The Routing Status Screen

The Routing Status screen allows you to view the current routing flow and quickly link to specific routing
settings. Click a function box in the Routing Flow section, the related routes (activated) will display in the
Routing Table section. To access this screen, click Maintenance > Packet Flow Explore > Routing Status.
The order of the routing flow may vary depending on whether you:
• Select use policy route to override direct route in the CONFIGURATION > Network > Routing > Policy
Route screen.
• Use policy routes to control 1-1 NAT by using the policy control-virtual-server-rules
activate command.
• Select use policy routes to control dynamic IPSec rules in the CONFIGURATION > VPN > IPSec VPN >
VPN Connection screen.
Note: Once a packet matches the criteria of a routing rule, the Zyxel Device takes the
corresponding action and does not perform any further flow checking.

Chapter 41 Packet Flow Explore

Packet Flow Explore

Section 41.2 on page
Section 41.3 on page
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H A P T E R
794) to view the overall routing flow and
798) to view the overall source IP address
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