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NXC CLI Reference Guide

259

CHAPTER 40

Packet Flow Explore

This chapter covers how to use the packet flow explore feature.

40.1 Packet Flow Explore

Use this to get a clear picture on how the NXC 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 the

related problems.

40.2 Packet Flow Explore Commands

The following table lists the commands that you can use to have the NXC display routing and

SNAT related settings.

Table 151 Packet Flow Explore Commands

COMMAND DESCRIPTION

show route order Displays the order of routing related functions the NXC checks for

packets. Once a packet matches the criteria of a routing rule, the NXC

takes the corresponding action and does not perform any further flow

checking.

show system default-snat Displays whether the NXC enable SNAT or not. The NXC performs SNAT

by default for traffic going to or from the WAN interfaces.

show system route policy-route Displays activated policy routes.

show system route nat-1-1 Displays activated 1-to-1 NAT rules.

show system snat default-snat Displays activated default routes which use SNAT.

show system snat order Displays the order of SNAT related functions the NXC checks for packets.

Once a packet matches the criteria of an SNAT rule, the NXC uses the

corresponding source IP address and does not perform any further flow

checking.

show system snat nat-1-1 Displays activated NAT rules which use SNAT.

show system snat nat-loopback Displays activated NAT rules which use SNAT with NAT loopback

enabled.

show system snat policy-route Displays activated policy routes which use SNAT.

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ZyXEL Communications Network Router NOT AVAILABLE Bedienungsanleitung Seite 259