[David.C]

Preview Qmap: "NAT.qmap"


According to the figure above, configure R6 such that for all traffic from outside network towards 11.11.6.254,

* if it is telnet, re-direct to R3's lo0;
* if it is http, re-direct to R3's s0/0

[David.C]

Knowledge Points:

To configure the NAT, taking the following steps:

1. Define the internal and external network for the NAT.
(config-if)#ip nat inside Specify the internal interface.
(config-if)#ip nat outside Specify the external interface.

2. Configuring the source IP address to be translated.

Static mapping
(config)#ip nat inside source static Local_ip _addr global_ip_addr

Dynamic mapping
(config)#ip nat inside source [ list { 1-99 } | route-map ] pool pool_name overload

3. Configuring the dynamic address pool for overload NAT
(config)#ip nat pool netbrain begin_IP end_IP netmask mask