Command Manual – NAT&URPF&VPLS 
Quidway S8500 Series Routing Switches  Chapter 1  
NAT Configuration Commands
 
Huawei Technologies Proprietary 
1-15 
[Quidway-Vlan-interface2] nat server protocol tcp global 202.110.10.10 ftp 
inside 10.110.10.11 ftp slot 3 
# Specify an internal host 10.110.10.12 which can be successfully pinged by external 
hosts using the ping 202.110.10.11 command. 
[Quidway-Vlan-interface2] nat server protocol icmp global 202.110.10.11 
inside 10.110.10.12 slot 2 
# Delete the WWW server. 
[Quidway-Vlan-interface2] undo nat server protocol tcp global 202.110.10.10 
8070 inside 10.110.10.10 www slot 3 
# Delete the FTP server. 
[Quidway-Vlan-interface2] undo nat server protocol tcp global 202.110.10.11 
ftp inside 10.110.10.11 ftp slot 3 
# Specify an external address 202.110.10.10, let ports from 1001 to 1100 map to the 
TELNET service of internal hosts from 10.110.10.1 to 10.110.10.100, making 
202.110.10.10:1001 map to 10.110.10.1, 202.110.10:1002 map to 10.110.10.2. 
[Quidway-Vlan-interface2] nat server protocol tcp global 202.110.10.10 1001 
1100 inside 10.110.10.1 10.110.10.100 telnet slot 3 
1.1.13  reset nat  
Syntax 
reset nat session slot slotno 
View 
User view 
Parameter 
session: Clear the NAT mapping table. 
slot slotno: Number of the slot where the NAT board resides. 
Description 
Use the reset nat session command to clear NAT mapping tables from the memory 
and NP. 
Example 
# Clear the NAT mapping table established by the NAT service processor board in slot 
3. 
<Quidway> reset nat session slot 3