to do a simple test i connected two routers via GNS3
R2 ------ fa0/0 ------ ----- fa0/0 -----> R3
R2 has loopback0 1.1.1.1
R2 has LAN (fa0/0) 192.168.1.1/24
R2 has loopback1 192.168.2.1
R3 is acting as a LAN host 192.168.1.10
When i telnet from R3 to the Loopback1 address 192.168.2.1 i should be natted to 1.1.1.1 and if i do a show users i should see 1.1.1.1 IP
but i do not.
Example:
R2#telnet 192.168.2.1
Trying 192.168.2.1 ... Open
User Access Verification
Password:
R2>en
Password:
R2#show users
Line User Host(s) Idle Location
0 con 0 idle 00:03:14
66 vty 0 192.168.2.1 00:00:00 192.168.1.10
* 67 vty 1 idle 00:00:00 192.168.2.1
Interface User Mode Idle Peer Address
R2#
Here is the configurations.
R2:
Current configuration : 1569 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$mxfk$S00eOFiT06vvqUnP/8NKo0
!
no aaa new-model
memory-size iomem 5
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
no ip domain lookup
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
ip nat outside
ip virtual-reassembly
!
interface Loopback2
ip address 192.168.2.1 255.255.255.0
!
interface FastEthernet0/0
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation frame-relay
clock rate 2000000
!
interface Serial0/0.100 point-to-point
ip address 23.23.23.1 255.255.255.252
frame-relay interface-dlci 100
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
no ip address
shutdown
duplex auto
speed auto
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip nat pool Lo0 1.1.1.1 1.1.1.1 prefix-length 30
ip nat inside source list LAN-NAT pool Lo0 overload
!
ip access-list standard LAN-NAT
permit 192.168.1.0 0.0.0.255
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
password nortel
login
!
!
end
R3:
Current configuration : 1181 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
no ip domain lookup
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.1.10 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation frame-relay
clock rate 72000
!
interface Serial0/0.200 point-to-point
ip address 23.23.23.2 255.255.255.252
frame-relay interface-dlci 200
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
no ip address
shutdown
duplex auto
speed auto
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 192.168.1.1
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
!
end
