ZyXEL Communications ZyWall USG20-VPN, Руководство пользователя

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Chapter 34 Packet Flow Explore
USG20(W)-VPN Series User’s Guide
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The following table describes the labels in this screen.
Table 277
Maintenance > Packet Flow Explore > Routing Status
LABEL DESCRIPTION
Routing Flow This section shows you the flow of how the USG determines where to route a packet. Click
a function box to display the related settings in the
Routing Table 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 Main Route 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 USG 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 Section
10.2 on page 229 for more information.
Next Hop Type This is the type of the next hop to which packets are directed.
Next Hop Info • This is the main route if the next hop type is Auto .
• This is the interface name and gateway IP address if the next hop type is Interface /
GW .
• This is the tunnel name if the next hop type is VPN Tunnel .
• This is the trunk name if the next hop type is Trunk .
The following fields are available if you click 1-1 SNAT in the Routing Flow section.
# This field is a sequential value, and it is not associated with any entry.
NAT Rule This is the name of an activated 1:1 or Many 1:1 NAT rule in the NAT table.
Source This is the original source IP address(es). any means any IP address.
Destination This is the original destination IP address(es). any means any IP address.