Setting Up the Modem Cisco Router

First Stage Before Starting setup
For the first step setting Cisco Router, open your cisco, then attach the modem that has been prepared by the Astinet. Make sure the modem is supplied already on quality A. Also make sure the modem is also in accordance with the desired bandwidth demand.
Open the email or letter has been faxed by the Astinet and record the serial number and ip public ip given to you by the telecom side. For example given the following information:

    serial ip: 192.168.53.55,
    netmask: 255.255.255.252
    public ip: 202 130 207 208
If the data is already there, it means your modem is ready. And that means you are able to configure your Rooter.
Common At The Stage Setting Router

    Setting the IP address of the Ethernet
    First thing to do is setting the IP address for FastEthernet it first. This is important because to simplify the process of setting the next step.
    Connect Modem to Leaseline
    Plug the modem into the router is leaseline, then plug in the blue console cable, to do configuration via pc. Of pc running hyperterminal to configure cisco router earlier.
    Put Information Hostname, Password and other lainSetelah console cable attached, restart your router lah. The first time, booting Cisco will ask questions about the default initial configuration cisco like hostname, passwords, etc..
    Initial configuration of Cisco Router settings
    The first time we are doing is setting up a password console, aux, and vty passwords secret way is how:

    router # config t
    router (config) # enable secret (pass-you) router (config) # enable password (pass-you)

    Further settings for the console, vty, and aux way:

    router (config) # line console 0
    router (config-line) # login
    router (config-line) # password (your password) as well as setting vty and aux

    Next do the settings again to let the current password in the password in encrypted sh run. and all passwords terencryption. How to do this is:
    router (config) # service password-encryption
    router (config) # enable password (your password)
    router (config) # line vty 0 4
    router (config-line) # login
    router (config-line) # password (your pass)
    router (config-line) # line con 0
    router (config-line) # login
    router (config-line) # password (your pass)
    router (config-line) # exit
    router (config) # no service password-encryption
    router (config) # ^ Z
    router (config) # wr mem
    When finished setting the password, we can now change the hostname in a way:
    router # config t
    router (config) # hostname (your hostname)
    router (config) # ^ Z
    router (config) # wr mem
    (Your hostname) #

   if you need to set up the banner please set the banner on your cisco, here I did not enter because I think does not really matter.
Advanced Cisco Router Configuration Settings

    Setting Against FastEthernet trouter fa0/0router # config (config) # int fa0/0router (config-if) # ip address 203 130 207 209 255.255.255.248router (config-if # ip address 192.168.100.1 255.255.255.0 secondaryrouter (config-if ) # ip nat inside
    Against Serial settings Serial 0/0
    router # config trouter (config) # int serial0/0router (config-if) # ip address 192.168.53.55 255.255.255.252router (config-if) # bandwidth 64router (config-if) # ip nat insiderouter (config-if) # ^ Zrouter # wr mem
    Setting the IP Route
    Setting the IP route in order to pass to the outside of the package anywhere via serial0 ip
    router (config) # ip route 0.0.0.0 0.0.0.0 serial0 /
    Setting IP Nat
    Ip nat setting to perform Nat to internal network within a network using the ip nat. The trick pool advance to make public ip ready in natkan

    router (config) # ip nat pool (pool name) 202 130 207 210 202 130 207 210 netmask 255.255.255.248
    router (config) # ip nat inside source list 1 (name-pool) overload
    router (config) # ^ Z
    router # wr mem
    Setting To Access List
    router (config) # access-list 1 permit 192.168.100.0 0.0.0.255
    router (config) # ^ Z
    router # wr mem
After going through all the steps above, means that all the settings are finished to Astinet now you just try pinging the ip address on the internet when it is connected means your job successfully. And do not forget to set your client to Gateway on the existing private ip on your cisco router FastEthernet