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Example: Configuring Source NAT on J-series Services Routers
When performing source Network Address Translation
(NAT-src), source pool provides JUNOS software with a supply of addresses
from which to draw. When a policy requires NAT-src and references
a specific source pool, JUNOS software draws addresses from that pool
when translation is performed.
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Before You Begin
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For background information, read:
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In this example, you perform the following tasks:
- Define a source pool (src-nat-with-pat) on an interface
(ge-0/0/0.0) that contains an address range (10.1.1.20 10.1.1.30)
and an address (10.1.1.2) with port address translation.
- Define a source pool (src-nat-wo-pat) on an interface
(ge-0/0/0.0) that contains an address range (10.1.1.3 10.1.1.5) without
port address translation and uses (src-nat-with-pat) as the overflow
pool.
- Define a source pool (src-nat-static) on an interface
(ge-0/0/1.0) that maps an IP address range (1.1.1.10 1.1.120) to an
IP address range (20.1.1.10 20.1.1.20).
- Define a source pool (src-nat-incoming) on an interface
(ge-0/0/1.0) that contains an IP address range (20.1.1.25 20.1.1.30)
with allow-incoming enabled.
- Reference source pool (src-nat-with-pat) in a policy (src-nat-policy-1).
- Reference an interface source pool in a policy (src-nat-policy-2).
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