Leased Line Configuration- Cisco 2900 Series Router

One of our clients decided to upgrade their Leased Line connection from 2Mbps to 8Mbps and bought Cisco 2900 Series Integrated Services Router. I was asked to configure which in the beginning I had some troubles in the configuration but later on, I finally made it working.

Below are the commands and configurations I had gone through to make it work.

*Setting up hostname and DHCP server

Router> en

Router#conf t

Router(config)# hostname HOTEL

HOTEL(config)#ip dhcp pool mypool

HOTEL(dhcp-config)#network 192.168.2.0 255.255.255.0

HOTEL(dhcp-config)#dns-server 213.42.20.20 195.22.241.222

HOTEL(dhcp-config)#default-router 192.168.2.1

HOTEL(dhcp-config)#ip name-server 213.42.20.20

HOTEL(dhcp-config)# exit

*Configure GigabitEthernet 0/0 for connection to the ISP public address which they  subscribed
HOTEL#conf t
HOTEL(config)# int GigabitEthernet 0/0
HOTEL(config-if)#ip add 83.111.95.77 255.255.255.252
HOTEL(config-if)#no shut
HOTEL(config-if)# ip nat outside
HOTEL(config-if)#exit


*Configure GigabitEthernet 0/1 for your LAN
HOTEL#conf t
HOTEL(config)# int GigabitEthernet 0/1
HOTEL(config-if)#ip add 192.168.2.1 255.255.255.0
HOTEL(config-if)#no shut
HOTEL(config-if)#ip nat inside
HOTEL(config-if)#exit
HOTEL(config)#


*Configure the Access-list
HOTEL(config)#ip nat inside source list 100 interface GigabitEthernet0/0 overload
HOTEL(config)#access-list 100 permit ip any any
HOTEL(config)#ip route 0.0.0.0 0.0.0.0 83.111.95.77
HOTEL(config)#exit
HOTEL#copy run start  <--- Save the configuration. Don't ever forget this command.

Goodluck!