ZyXEL Communications ZyWall USG 50-H Series, Руководство пользователя

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Chapter 10 Policy and Static Routes
ZyWALL USG 50-H User’s Guide
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Figure 175 Network > Routing > Static Route > Edit
The following table describes the labels in this screen.
10.4 Policy Routing Technical Reference
Here is more detailed information about some of the features you can configure in policy
routing.
DSCP Pre-defined Class to Decimal Mapping
The following table maps the ZyWALL’s pre-defined DSCP classes to their binary and
decimal values.
Table 84 Network > Routing > Static Route > Edit
LABEL DESCRIPTION
Destination IP This parameter specifies the IP network address of the final destination. Routing is
always based on network number. If you need to specify a route to a single host,
use a subnet mask of 255.255.255.255 in the subnet mask field to force the network
number to be identical to the host ID.
Subnet Mask Enter the IP subnet mask here.
Gateway IP Select the radio button and enter the IP address of the next-hop gateway. The
gateway is a router or switch on the same segment as your ZyWALL's interface(s).
The gateway helps forward packets to their destinations.
Interface Select the radio button and a predefined interface through which the traffic is sent.
Metric Metric represents the “cost” of transmission for routing purposes. IP routing uses
hop count as the measurement of cost, with a minimum of 1 for directly connected
networks. Enter a number that approximates the cost for this link. The number need
not be precise, but it must be 0 ~ 127. In practice, 2 or 3 is usually a good number.
OK Click OK to save your changes back to the ZyWALL.
Cancel Click Cancel to exit this screen without saving.
Table 85 Network > Routing > Static Route > Edit
PRE-DEFINED DSCP
CODE POINT
BINARY MAPPING DECIMAL MAPPING
af11 001010 10
af12 001100 12
af13 001110 14
af21 010010 18
af22 010100 20
af23 010110 22