>I had an issue with my hyper-v virtuals all not being able to ping the 2008
> host.
> Not sure how long it was like this, but I found out when I tried to grab a
> file off the 2008 box and couldn't.
>
> it had me stumped, because I work on the 2008 box, and all the virtuals it
> hosts - remotely - from my desktop, I could ping each and every one of
> them.
>
> but there was no network communication between the virtuals and the 2008
> box
> they sat on.
>
> my first thought was that I must have done something to the network config
> of hyper-v - I hadn't.
>
> It turned out that I had disabled the network in 2008 somehow.
> now this was new to me, I haven't used 2008 much, nor am I a vista guy.
>
> in XP or 2003 I had but one network connection and it was either on or it
> wasn't
> in 2008 with hyper-v - defining a network in hyper-v - even if it's just
> connecting externally through the hosts nic - creates a new network
> connection in 2008.
>
> to get to this, start-control panel- network and sharing center then click
> 'manage network connections' I had one there that was disabled - I think
> that
> happend via some pop up in response to something else I had done earlier
> that
> day.
>
> Hope this helps save someone some time!

> Hyper-V creates a virtual switch for an existing NIC, so you end up with two
> NICs - the original one, that no longer has an IP address, and the new
> virtual switch. Disabling either of them is not going to give you a good
> result. ;)
>
> It's also important to understand there are three different kinds of
> connections for the virtual networks: external, that allows connections to
> the outside world, internal, that allows connections between VMs on that
> switch, and to the parent partition (host), but not past the host, and
> private, which ONLY allows connections between VMs on that switch. (No
> connections to the host or the outside world.)
>
> --
> Charlie.
> http://msmvps.com/xperts64
> http://mvp.support.microsoft.com/profile/charlie.russel
>
>
> "jack" <(email address - cut out)> wrote in message
> news:(email address - cut out)...
> >I had an issue with my hyper-v virtuals all not being able to ping the 2008
> > host.
> > Not sure how long it was like this, but I found out when I tried to grab a
> > file off the 2008 box and couldn't.
> >
> > it had me stumped, because I work on the 2008 box, and all the virtuals it
> > hosts - remotely - from my desktop, I could ping each and every one of
> > them.
> >
> > but there was no network communication between the virtuals and the 2008
> > box
> > they sat on.
> >
> > my first thought was that I must have done something to the network config
> > of hyper-v - I hadn't.
> >
> > It turned out that I had disabled the network in 2008 somehow.
> > now this was new to me, I haven't used 2008 much, nor am I a vista guy.
> >
> > in XP or 2003 I had but one network connection and it was either on or it
> > wasn't
> > in 2008 with hyper-v - defining a network in hyper-v - even if it's just
> > connecting externally through the hosts nic - creates a new network
> > connection in 2008.
> >
> > to get to this, start-control panel- network and sharing center then click
> > 'manage network connections' I had one there that was disabled - I think
> > that
> > happend via some pop up in response to something else I had done earlier
> > that
> > day.
> >
> > Hope this helps save someone some time!
>

> as a follow up - I thought I had it licked, and I tried it agian and
> still
> no luck - not sure if a reboot would have helped - I know I rebooted one
> of
> the virtuals and still no luck.
>
> Charlie - I was using the external connection type before (it was working
> till I messed it up!)
>
> so what I did was
> - stop each virtual machine.
> - using the hyperv manager - removed the external network definition
> when I did this, my extra connection dissapeared from windows.
> also all my virtuals network configs went to an error state.
> - I set each virtual config to no no network
> - I recreated an external network I named it 'bound to nic - external'
> - i went into settings for each virtual and set the network to use 'bound
> to nic - external'
>
> There was again an extra network connection in windows
> booted a virtual and was able to ping the host. Whew! I would not have
> wanted to rebuild that machine!
>
> so a little bit tedious but I managed to get things back in acton!
>
> "Charlie Russel - MVP" wrote:
>
>> Hyper-V creates a virtual switch for an existing NIC, so you end up with
>> two
>> NICs - the original one, that no longer has an IP address, and the new
>> virtual switch. Disabling either of them is not going to give you a good
>> result. ;)
>>
>> It's also important to understand there are three different kinds of
>> connections for the virtual networks: external, that allows connections
>> to
>> the outside world, internal, that allows connections between VMs on that
>> switch, and to the parent partition (host), but not past the host, and
>> private, which ONLY allows connections between VMs on that switch. (No
>> connections to the host or the outside world.)
>>
>> --
>> Charlie.
>> http://msmvps.com/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>>
>> "jack" <(email address - cut out)> wrote in message
>> news:(email address - cut out)...
>> >I had an issue with my hyper-v virtuals all not being able to ping the
>> >2008
>> > host.
>> > Not sure how long it was like this, but I found out when I tried to
>> > grab a
>> > file off the 2008 box and couldn't.
>> >
>> > it had me stumped, because I work on the 2008 box, and all the virtuals
>> > it
>> > hosts - remotely - from my desktop, I could ping each and every one of
>> > them.
>> >
>> > but there was no network communication between the virtuals and the
>> > 2008
>> > box
>> > they sat on.
>> >
>> > my first thought was that I must have done something to the network
>> > config
>> > of hyper-v - I hadn't.
>> >
>> > It turned out that I had disabled the network in 2008 somehow.
>> > now this was new to me, I haven't used 2008 much, nor am I a vista guy.
>> >
>> > in XP or 2003 I had but one network connection and it was either on or
>> > it
>> > wasn't
>> > in 2008 with hyper-v - defining a network in hyper-v - even if it's
>> > just
>> > connecting externally through the hosts nic - creates a new network
>> > connection in 2008.
>> >
>> > to get to this, start-control panel- network and sharing center then
>> > click
>> > 'manage network connections' I had one there that was disabled - I
>> > think
>> > that
>> > happend via some pop up in response to something else I had done
>> > earlier
>> > that
>> > day.
>> >
>> > Hope this helps save someone some time!
>>

> I had an issue with my hyper-v virtuals all not being able to ping the 2008
> host.
> Not sure how long it was like this, but I found out when I tried to grab a
> file off the 2008 box and couldn't.
>
> it had me stumped, because I work on the 2008 box, and all the virtuals it
> hosts - remotely - from my desktop, I could ping each and every one of them.
>
> but there was no network communication between the virtuals and the 2008 box
> they sat on.
>
> my first thought was that I must have done something to the network config
> of hyper-v - I hadn't.
>
> It turned out that I had disabled the network in 2008 somehow.
> now this was new to me, I haven't used 2008 much, nor am I a vista guy.
>
> in XP or 2003 I had but one network connection and it was either on or it
> wasn't
> in 2008 with hyper-v - defining a network in hyper-v - even if it's just
> connecting externally through the hosts nic - creates a new network
> connection in 2008.
>
> to get to this, start-control panel- network and sharing center then click
> 'manage network connections' I had one there that was disabled - I think that
> happend via some pop up in response to something else I had done earlier that
> day.
>
> Hope this helps save someone some time!

> local hyper-v session. The hyper-v session can get to the outside world
> (external network settings in hyper-v manager), along with internal
> servers (file print, shares, etc). I am assuming that i should be able to
> see this witout setting the network to Internal yes? However, I can't
> ping or get to the parent 2008 server via IP or Name. I am trying to
> configure usb-over-network and they can't see eachother. I have done a
> few things people have commented on to fix this, but no success please
> help.
>
> Thanks,
> David
>
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