Juniper NETWORK AND SECURITY MANAGER 2010.4 - ADMININISTRATION GUIDE REV1, Administration Manual

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•
Other routing instances, if you have added them previously. To add a new
routing instance, use
Object Manager
>
Routing Instance Objects
.
• Zone
—Select the zone from the list.
In general, the list displays the zones configured within a specific device or just
the shared zones depending on whether the
Select From Device
check box is
selected (default) or not and can have the following values:
• The default zone ( junos-global ), which ships with the device. You can use this
zone, if you do not wish to configure anything new.
• Other zones, if you have added them previously. To add a new zone, use Object
Manager > Zone Objects .
• Interface —Select the interface(s) from the list. The interfaces are listed only if
you have imported the device to NSM. Hence, for modeled devices, no interfaces
are listed.
c.
Click
OK
.
A rule set with the specified name gets created and is displayed in the Security Policy
window.
The next step is to add rules to the rule set. For more information, see “Adding a Rule to
a Source NAT Rule Set” on page 541.
Adding a Rule to a Source NAT Rule Set
To add a new rule to a rule set:
1.
From the
Source NAT
tab, select the rule set to which you want to add the rule.
2.
Click (
+
) at the upper left corner of the
Source NAT
tab.
3.
Select
Add Rule
to add a new rule to the selected rule set. The
New Rule
dialog box
appears.
Here, you must specify a unique name for the rule and set the conditions and the
action to be performed when the traffic matches these conditions, as follows:
a.
Enter a name, which uniquely identifies the rule within the rule set.
b.
Select the source address from the list. This address represents the public IP
address through which the traffic leaves the private network.
c.
Select the destination address from the list. The addresses listed here represent
the hosts, which are in the public network.
d.
If using Port Address Translation (PAT), specify a port range (between 1024 and
65535) in the
Low and High fields. When PAT is used, multiple hosts can share the
same IP address. For more information on PAT, see
http://www.juniper.net/techpubs/software/junos-security/junos-security10.0/
junos-security-swconfig-security/id-11012.html#id-11012
.
541 Copyright © 2010, Juniper Networks, Inc.
Chapter 11: Configuring Junos NAT Policies