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HAP T ER
This chapter covers how to use the packet flow explore feature.
39.1 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.
39.2 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 131 Packet Flow Explore Commands
COMMAND
show route order
show system default-snat
show system route policy-route Displays activated policy routes.
show system route nat-1-1
show system snat default-snat
show system snat order
show system snat nat-1-1
show system snat nat-loopback
show system snat policy-route
NXC CLI Reference Guide
Packet Flow Explore
DESCRIPTION
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.
Displays whether the NXC enable SNAT or not. The NXC performs SNAT
by default for traffic going to or from the WAN interfaces.
Displays activated 1-to-1 NAT rules.
Displays activated default routes which use SNAT.
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.
Displays activated NAT rules which use SNAT.
Displays activated NAT rules which use SNAT with NAT loopback
enabled.
Displays activated policy routes which use SNAT.
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