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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Source Network
Address
Translation Select none to not use NAT for the route.
Select outgoing-interface to use the IP address of the outgoing interface as the
source IP address of the packets that matches this route. If you select outgoing-
interface , you can also configure port trigger settings for this interface.
Otherwise, select a pre-defined address (group) to use as the source IP
address(es) of the packets that match this route.
Select
Create Object to configure a new address (group) to use as the source IP
address(es) of the packets that match this route.
Port Triggering Configure trigger port forwarding to allow computers on the LAN to dynamically
take turns using a service that uses a dedicated range of ports on the client side
and a dedicated range of ports on the server side.
Note: You need to create a firewall rule to allow an incoming service
before using a port triggering rule.
# This is the rule index number.
Incoming Service Select the service that the client computer sends to a remote server.
The incoming service should have the same service or protocol type as what you
configured in the
Service field.
Trigger Service Select a service that a remote server sends. It causes (triggers) the ZyWALL to
forward the traffic (received on the
outgoing interface ) to the client computer that
requested the service.
Add icon Click the Add icon in the heading row to add a new first entry.
Click the Add icon in an entry to add a rule below the current entry.
Click the Remove icon to delete an existing rule from the ZyWALL. A window
displays asking you to confirm that you want to delete the rule.
In a numbered list, click the
Move to N icon to display a field to type a number for
where you want to put that rule and press [ENTER] to move the rule to the number
that you typed.
The ordering of your rules is important as they are applied in order of their
numbering.
Bandwidth
Shaping This allows you to allocate bandwidth to a route and prioritize traffic that matches
the routing policy.
You must also enable bandwidth management in the main policy route screen
(
Network > Routing > Policy Route ) in order to apply bandwidth shaping.
Maximum
Bandwidth Specify the maximum bandwidth (from 1 to 1048576) allowed for the route in kbps.
If you enter
0 here, there is no bandwidth limitation for the route.
If the sum of the bandwidths for routes using the same next hop is higher than the
actual transmission speed, lower priority traffic may not be sent if higher priority
traffic uses all of the actual bandwidth.
To reserve bandwidth for traffic that does not match any of the policy routes, leave
some of the interface’s bandwidth unbudgeted and do not enable
Maximize
Bandwidth Usage .
Bandwidth
Priority Enter a number between 1 and 7 to set the priority for traffic. The smaller the
number, the higher the priority. If you set the maximum bandwidth to
0 , the
bandwidth priority will be changed to 0 after you click OK . That means the route
has the highest priority and will get all the bandwidth it needs up to the maximum
available.
A route with higher priority is given bandwidth before a route with lower priority.
If you set routes to have the same priority, then bandwidth is divided equally
amongst those routes.
Table 82 Network > Routing > Policy Route > Edit (continued)
LABEL DESCRIPTION