Nat Configuration Examples; Napt Example; Figure 6: Napt Example - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - IP SERVICES CONFIGURATION GUIDE 2010-10-01 Configuration Manual

NAT Configuration Examples

NAPT Example

Copyright © 2010, Juniper Networks, Inc.
Example 2—Clear a specific port translation
host1 #clear ip nat translation tcp inside 171.69.68.10 10.1.2.3 55
There is no no version.
See clear ip nat translation.
This section contains NAT configuration examples for a single virtual router configuration
and NAT translation between two virtual routers.
Figure 6 on page 77 illustrates a NAPT configuration for a private network with two inside
subnetworks, a field office, and a corporate office.
Both offices use private addresses. The corporate office has a dual T-3 link and a public
FTP server that has a global address (that is, it does not need translation).

Figure 6: NAPT Example

The address pool consists of three addresses (the number of addresses is small, because
NAPT is used). Addresses matching the private address spaces of the corporate and
field subnetworks are translated to global addresses from the pool through NAPT.
To configure this example:
Enter the correct virtual router context.
1.
host1(config)#virtual-router blue
Mark the inside interfaces.
2.
a. Mark the field office:
host1:blue(config)#interface serial 2/1:1/1
host1:blue(config-interface)#ip nat inside
host1:blue(config-interface)#exit
b. Mark the two corporate T-3 links:
Chapter 2: Configuring NAT
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