how to connect to internet ?

Unanswered Question
Dec 23rd, 2008

how do i connect to internet using router & i have an public ip purchase from ISP?

I have this problem too.
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passioncas Tue, 12/23/2008 - 03:37

Configure the Public IP address on the interface where the ISP link is terminated and do PAT(port Address Translation )for the internal clients.Please let me know the exact requirement and will help you

kaustubhchavan Tue, 12/23/2008 - 04:38

i have 20 users their private as follows :




My static ip is 210.242......

so how will i do plz send me configuration?

where will i terminate cable coming from broadband modem ?

passioncas Tue, 12/23/2008 - 04:41

Hi ,

The broadand modem itself act as a Router ,no need to put the Router.



John Blakley Tue, 12/23/2008 - 06:37

Actually, if you have only a modem, you'll need a router to route traffic out. Your modem would connect to the WAN port on your router, and then your ethernet port would connect to the LAN side. You would configure NAT on the router so all of your hosts would be able to get on the internet.

If you have a broadband router, you'll need to have your ISP help you configuring their router that they sent you in bridging mode. Bridging allows all of the public traffic through their device and allows your Cisco router to handle all of it.



ullasupendran Tue, 12/23/2008 - 07:46

Hi kausthub

chk out the floowing confing and change it according to ur ip setup

interface ethernet x/x

ip address 192.168.2.x

ip nat inside

interface serial x/x

ip address 210.242.x.x 255.255.255.x

ip nat outside

ip nat pool ovrld prefix 24

ip nat inside source list 7 pool ovrld overload

access-list 7 permit

"Pls rate if it helps"


passioncas Tue, 12/23/2008 - 21:29

It is possible to connect a Router..Connect the Broadband modem to the router through ethernet port..then Lan will be connected to the router..Do a default route on the Router pointing towards the Broadband modem..

kaustubhchavan Tue, 12/23/2008 - 21:50

to connect broadband modem it require adsl port on router & lan segment on fastethernet if i am right ?


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