Nat Configuration Example - H3C S9500 Series Operation Manual

Operation Manual – L3+NAT
H3C S9500 Series Routing Switches
Display information about
the resource allocation
and utilization
Display NAT log
configuration and
statistics
Clears the records in the
NAT log buffer
Clears NAT log statistics
Clears the address
translation mapping table
in the memory and
release the memory
dynamically allocated for
storing the mapping table
Note:
Clearing the NAT log buffer implies loss of all NAT logs. In general, you are not
recommended to use this command.

1.10 NAT Configuration Example

1.10.1 NAT Configuration Example
I. Network requirements
As illustrated in
NAT-enabled device. The company provides two WWW servers, one FTP server, and
one SMTP server for external users to access. The internal network address segment
is 10.110.0.0/16. The internal address for the FTP server is 10.110.10.1, for the WWW
server 1 is 10.110.10.2, for the WWW server 2 is 10.110.10.3, and for the SMTP server
10.110.10.4. The company wants to provide a unified IP address to external users.
Specifically, the company has the following requirements:
The internal users in subnet 10.110.10.0/24 can access the Internet, while users in
other network segments cannot.
External PCs can access an internal server.
The company has 6 legal IP addresses ranging from 202.38.160.100/24 to
202.38.160.105/24. Address 202.38.160.100 is used as the one for external
access and port 8080 is used for WWW server 2.
To do...
display nat limit { all |
public | vpn-instance
vpn-instance--name }
display userlog export
slot slot-number
reset userlog nat
logbuffer slot
slot-number
reset userlog export
slot slot-number
reset nat session slot
slot-number
Figure 1-4, a company accesses the Internet through VLAN 10 of the
Use the command...
1-19
Chapter 1 NAT Configuration
Remarks
Available in any view
Available in any view
Available in user view
Available in user view
Available in user view