Cisco static default route NAT address translation

1. Plan all routing IP addresses
   Set R1 router IP address
   
   Set R2IP address
   
   add vlan10, 20
   
   assign vlan10, 20
   
   
   help vlan10 20 Set gateway
   
   
   Set R3IP address, turn off the two-layer exchange, and then set IP address
   
   
   Set R4IP address
   
   

Set R5IP address


Set R6IP address

2. Set static, default route, make internal network communication






test internal network communication, use R4ping R1 pingR2


3. Set NAT inbound interface

Set NAT outbound interface

4 Set ACL, apply the inbound interface with NAT Interface, open PAT

Test


the telnet function of the internal staff’s computer ping the Internet to set R6, use R2telnetR6 to test

Set up the R2telnet function,

set up port mapping so that the Internet client can telnet R2 to

test R6 telnet R2