2nd level Router does not have access to the internet

Amir Eskandari · ‎05-28-2016

Hi there,

I have a test lab for my VMWare.

for the routing between different network in the lab I used GNS3.

in the project I have five routers.

Router "Mgmt" is connected to my Physical server NIC and the NIC is connected to my physical router

Router "Mgmt" is good and can ping 8.8.8.8

my first test router is "VMNet3"

I am able to ping any port on the "Mgmt" from "VMNet3"

But cannot ping 192.168.1.1 (the IP address of the physical router/ Gateway of the Physical Router)

Please refer to the enclosed topology and the config file.

I am wondering what am I missing in the config of the VMNet3?

Thank you in advance

Amir Eskandari · ‎05-31-2016

I fixed it by adding NAT in the MGMT Router

Building configuration...

Current configuration : 1753 bytes
!
! Last configuration change at 11:38:56 UTC Tue May 31 2016
!
upgrade fpd auto
version 15.0
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Mgmt
!
boot-start-marker
boot-end-marker
!
no logging console
!
no aaa new-model
!
!
!
ip source-route
ip cef
!
!
!
!
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
redundancy
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex half
!
!
interface GigabitEthernet1/0
ip address 192.168.1.123 255.255.255.0
ip nat outside
ip virtual-reassembly
negotiation auto
!
!
interface Ethernet2/0
ip address 10.10.14.2 255.255.255.252
ip nat inside
ip virtual-reassembly
duplex half
!
!
interface Ethernet2/1
ip address 10.10.10.1 255.255.255.252
ip nat inside
ip virtual-reassembly
duplex half
!
!
interface Ethernet2/2
no ip address
shutdown
duplex half
!
!
interface Ethernet2/3
no ip address
shutdown
duplex half
!
!
interface Ethernet2/4
no ip address
shutdown
duplex half
!
!
interface Ethernet2/5
no ip address
shutdown
duplex half
!
!
interface Ethernet2/6
no ip address
shutdown
duplex half
!
!
interface Ethernet2/7
no ip address
shutdown
duplex half
!
!
!
router rip
version 2
network 10.0.0.0
network 192.168.1.0
!
ip default-gateway 192.168.1.1
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list 100 interface GigabitEthernet1/0 overload
ip route 0.0.0.0 0.0.0.0 192.168.1.1
!
access-list 100 permit ip any any
!
!
!
!
!
!
control-plane
!
!
!
mgcp fax t38 ecm
mgcp behavior g729-variants static-pt
!
!
!
gatekeeper
shutdown
!
!
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login
!
end

Mgmt#