cisco 2600 question.

[kmoran1]

our router crashed and there wasnt hard copy of the router config.
i have the t-1 up and running but im having a hard time figuring out how to map an external ip address to an internal ip address for the use of exchange webaccess.

i know you can do a: ip route xxx.xxx.xxx.xxx 255.255.255.255 xxx.xxx.xxx.xxx

here is what we have:
fastethernet 0/0 is xxx.xxx.2.1
i want to use xxx.xxx.2.5 mapped to 192.168.1.11(exhange server)

xxx.xxx.2.5 isnt bound to any interface.

ask questions ill respond asap.
Thanks in advance.
p.s. i am runnig a sonicwall firewall if that helps.

 

[kmoran1]

Here is the Config
config is a little messed cause i have been tring this and tring that.

Router#show run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
!
!
!
!
!
ip subnet-zero
!
!
!
process-max-time 200
!
interface FastEthernet0/0
ip address xxx.216.2.1 255.255.255.0
no ip directed-broadcast
ip nat outside
!
interface Serial0/0
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
frame-relay lmi-type ansi
!
interface Serial0/0.1 point-to-point
ip unnumbered FastEthernet0/0
no ip directed-broadcast
frame-relay interface-dlci 500 IETF
!
interface Serial0/1
ip address xxx.130.143.102 255.255.255.0
no ip directed-broadcast
!
ip nat inside source static 192.168.1.11 xxx.216.2.5
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0/0.1
ip route xxx.216.2.1 255.255.255.255 192.168.1.11
ip route xxx.216.2.5 255.255.255.255 192.168.1.11
ip route xxx.216.2.5 255.255.255.255 192.168.1.11 50
no ip http server
!
!
line con 0
transport input none
line aux 0
line vty 0 4
!
no scheduler allocate
end

Router#

 

[voltron1011]

Here's a good example:

http://www.cisco.com/warp/public/556/5.html

 

[kmoran1]

ok thats great information. ill read up on it, it looks like i have the fastethernet0/0 configured wrong. in all the nat examples it shows an internal ip address, i have an external on mine. when i change it though it takes down the internet. am i not looking in the right place?

 

[voltron1011]

I don't see an 'ip nat inside' configured anywhere..