Re: How to ping to/from a virtual machine (under VPC5)

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From: Robin Walker (rdhw_at_cam.ac.uk)
Date: 11/19/04 

Date: Fri, 19 Nov 2004 11:21:15 -0000

Alexandre Guillot <alexandre.guillot2@free.fr> wrote:

> I am using Shared Networking.

I assume you mean the NAT method of connection sharing.

> N.B. : i have been able to connect to the internet from the virtual
> machine (for SP2 update). My real problem is that i can't
> use a game (a card game ) that is supposed to work on a network and
> that is installed on both PCs. I want to know if it is normal
> that the two PCs can't "see" each other.

The Virtual PC on the Mac will be running behind a software NAT router, so
that it shares the IP address of the Mac's internet connection. Therefore,
the VPC will not be visible to any other internet-connected PC. This is the
same situation as with any PC behind any form of NAT router, hardware or
software: they can be clients to other servers on the internet, but cannot
(in general) be servers to any other clients on the internet.

Your VPC will have a private non-routable IP address, maybe in the
192.168.*.* range, and these cannot be accessed from outside the VPC. 

-- 
Robin Walker
rdhw@cam.ac.uk

Relevant Pages

  • Re: NAT question
    ... You don't *have* to use private IP addresses on the Internal network, but Internet Connection Sharing won't let you do it any other way. ... If you want to do something more elaborate than basic NAT with 192.168.0.x as your internal network, you'll need to use some other NAT routing software/hardware like RRAS. ...
    (microsoft.public.cert.exam.mcse)
  • Re: NAT question
    ... must i use private ip addresses in my entire network when i am using NAT or connection sharing? ... when i share m y internet connection, it automatically changes my lan adaptor settings to using private address like 192.168.0.1 ... Using NAT means that your internal private IP addresses are getting wrapped and sent out using a routable public IP address. ...
    (microsoft.public.cert.exam.mcse)
  • Re: Routing and Remote Access NAT - I need to modify TTL
    ... with two interfaces: PUBLIC (internet) and PRIVATE ... use it as a gateway, they can access hosts on the PUBLIC interface, TTL is ... but the replay that comes back to the NAT ... They relay on the fact that client computers accept packets with TTL=0, ...
    (microsoft.public.windows.server.networking)
  • Re: Routing and Remote Access NAT - I need to modify TTL
    ... with two interfaces: PUBLIC (internet) and PRIVATE ... use it as a gateway, they can access hosts on the PUBLIC interface, TTL is ... but the replay that comes back to the NAT ... They relay on the fact that client computers accept packets with TTL=0, ...
    (microsoft.public.windows.server.networking)
  • Re: Routing and Remote Access NAT - I need to modify TTL
    ... with two interfaces: PUBLIC (internet) and PRIVATE ... Hosts on the LAN successfully acquire IP addresses from the NAT SERVER ... use it as a gateway, they can access hosts on the PUBLIC interface, TTL ... They relay on the fact that client computers accept packets with TTL=0, ...
    (microsoft.public.windows.server.networking)