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S9700 Core Routing Switch
Configuration Guide - SPU
3.4.2 Example for Configuring Static NAT
Networking Requirements
As shown in
NAT enabled. Company A provides two Web servers for users on the public network. The private
IP addresses of the web servers are in the range of 192.168.20.2:8080 to 192.168.20.3:8080 (the
network segment is 192.168.20.2 and the mask is 255.255.255.254). The public addresses are
in the range of 202.169.10.2 to 202.169.10.3 (the network segment is 202.169.10.2 and the mask
is 255.255.255.254). A private address maps a public address.
The intranet of company B also connects to the WAN through the SPU with NAT enabled.
Company B provides four FTP servers in the VPN for users on the public network. The private
IP addresses of the FTP servers are in the range of 10.0.0.0 to 10.0.0.3 (the network segment is
10.0.0.0 and the mask is 255.255.255.252). The public addresses are in the range of
202.169.10.32 to 202.169.10.35 (the network segment is 202.169.10.32 and the mask is
255.255.255.252).
The SPU is installed in slot 5 of the S9700.
Issue 01 (2012-03-15)
interface GigabitEthernet2/0/1
port link-type trunk
port trunk allow-pass vlan 101
#
interface GigabitEthernet2/0/2
port link-type trunk
port trunk allow-pass vlan 102
#
interface GigabitEthernet2/0/3
port link-type trunk
port trunk allow-pass vlan 103
#
interface XGigabitEthernet5/0/0
eth-trunk 1
#
interface XGigabitEthernet5/0/1
eth-trunk 1
#
return
Figure
3-5, the intranet of company A connects to the WAN through the SPU with
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3 NAT Configuration
100
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