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ZyWALL (ZLD) CLI Reference Guide 333
CHAPTER 44
Packet Flow Explore
This chapter covers how to use the packet flow explore feature.
44.1 Packet Flow Explore
Use this to get a clear picture on how the ZyWALL 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.
44.2 Packet Flow Explore Commands
The following table lists the commands that you can use to have the ZyWALL display routing and
SNAT related settings.
Table 201 Packet Flow Explore Commands
COMMAND DESCRIPTION
show route order Displays the order of routing related functions the ZyWALL checks for packets.
Once a packet matches the criteria of a routing rule, the ZyWALL takes the
corresponding action and does not perform any further flow checking.
show system snat order Displays the order of SNAT related functions the ZyWALL checks for packets.
Once a packet matches the criteria of an SNAT rule, the ZyWALL uses the
corresponding source IP address and does not perform any further flow
checking.
show system route policy-route Displays activated policy routes.
show system route nat-1-1 Displays activated 1-to-1 NAT rules.
show system route site-to-site-vpn Displays activated site-to-site VPN rules.
show system route dynamic-vpn Displays activated dynamic VPN rules.
show system route default-wan-
trunk
Displays the default WAN trunk settings.
show ip route static-dynamic Displays activated static-dynamic routes.
show system snat policy-route Displays activated policy routes which use SNAT.
show system snat nat-1-1 Displays activated NAT rules which use SNAT.
show system snat nat-loopback Displays activated activated NAT rules which use SNAT with NAT loopback
enabled.
show system snat default-snat Displays the default WAN trunk settings.