On Thu, Jul 21, 2011 at 4:16 AM, Zico <[email protected]> wrote:
>
> For testing purpose, I got a domain name from dyndns.com with specific IP (
> public IP of my network, ISP's ).

Without a network diagram, it is **difficult** to understand the
topology of your network.

AFIAK, your "public" IP can be assigned only to the WAN port of your
router/modem to the ISP (in a typical setup).

> Now, I have assigned that IP in my guest
> CentOS VM NAT (eth0), but I can't connect to internet now.

See above remark.  Assuming that your VM is on "internal" network you
should assign it a "static" IP from the "private" IP number pool for
your LAN.  You have to assign port forwarding rules in your
router/modem to route packets to the "private" IP number of your VM.

>  I think, I need
> to configure this in router, but I am afraid that, I actually don't know how
> to do that. Can you please bring me any link or any hint regarding that?

IMO, one should have an understanding networking fundamentals under
one's belt. The Linux Network Administration Guide [1] is a good place
to start reading up about networking in Linux (as well as in general)

[1] <http://www.tldp.org/LDP/nag2/nag2.pdf>

-- 
Arun Khan
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
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