ZyXEL Communications unified security gateway User Manual

Chapter 47 Packet Flow Explore

ZyWALL USG 20/20W User’s Guide

The following table describes the labels in this screen.  

Table 226   Maintenance > Packet Flow Explore > Routing Status

Routing 

Flow

This section shows you the flow of how the ZyWALL determines where to 

route a packet. Click a function box to display the related settings in the 

 section.

Routing 

Table

This section shows the corresponding settings according to the function box 

you click in the Routing Flow section.

The following fields are available if you click Direct Route, Static-Dynamic Route, or 

 in the Routing Flow section.

#

This field is a sequential value, and it is not associated with any entry.

Destination This is the destination IP address of a route. 
Gateway

This is the IP address of the next-hop gateway or the interface through 

which the traffic is routed.

Interface

This is the name of an interface associated with the route.

Metric

This is the route’s priority among the displayed routes. 

Flags

This indicates additional information for the route. The possible flags are:

• A - this route is currently activated
• S - this is a static route
• C - this is a direct connected route
• O - this is a dynamic route learned through OSPF
• R - this is a dynamic route learned through RIP
• G - the route is to a gateway (router) in the same network. 
• ! - this is a route which forces a route lookup to fail.
• B - this is a route which discards packets.
• L - this is a recursive route.

Persist

This is the remaining time of a dynamically learned route. The ZyWALL 

removes the route after this time period is counted down to zero.

The following fields are available if you click Policy Route in the Routing Flow section.
#

This field is a sequential value, and it is not associated with any entry.

PR #

This is the number of an activated policy route. If you have configured a 

schedule for the route, this screen only displays the route at the scheduled 

time.

Incoming

This is the interface on which the packets are received.

Source

This is the source IP address(es) from which the packets are sent.

Destination This is the destination IP address(es) to which the packets are transmitted.
Service

This is the name of the service object. any means all services.

DSCP Code This is the DSCP value of incoming packets to which this policy route 

applies. See 

 for more information.

Next Hop 

Type

This is the type of the next hop to which packets are directed.