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Multiple Ip"s on guest OS

Source: microsoft.public.virtualserver
Sent: 08/30/2006
From: xmetrix
Message:

I just had a quick question I hope someone can help me with. I need to assign
multiple ip's to my virtual server's nic. I have tried many different things
and can sometimes get 2-3 ip's to work on some machines but others fail. Here
is my configuration

HOST PC:

Opteron 170
2gb ram
Block of 128 PUBLIC ip's
Broadcom NetXtreme Gigabit Ethernet #2 (PublicNetwork)

VIRTUAL MACHINE:

Windows 2003 Standard w/1gb ram 20gb vhd (named "B1")
Intel 21140-Based PCI Fast Ethernet Adapter (Generic) (Emulated Virtual NIC)

Currently I have "B1's" virtual network adapter connected to the following:
Connected to â€œExternal Network (Broadcom NetXtreme Gigabit Ethernet #2)â€

On the HOST, I have none of the ip's from my block of 128 assigned to it.
On B1, I have statically assigned my starting ip (75.x.x.150) and it works
fine. I can connect to B1 using remote desktop, and I can access the internet
from B1. However, I want to add 10 ip's to this box (75.x.x.150 to
75.x.x.160) and when I add additional ip's it doesn't always work. I've tried
adding it via Network Connections > Network adapter properties > tcp/ip >
advanced > add ip as well as netsh interface ip add "Local Area
Connection" 75.x.x.151 255.255.255.0.

It's seems as though virtual server is hit and miss with the ip addresses.
Sometimes i'll get the first 2 ip's assigned working, other times(or on other
boxes) I wont.

I have also tried creating a virtual network (named "75.x.x.100 to
75.x.x.228")
which I've setup

Network Address: 75.x.x.0
Network Mask: 255.255.255.0
Start IP Add: 75.x.x.100
End IP Add: 75.x.x.228
Virt DHCP IP Add: 75.x.x.1
Default Gateway: 75.x.x.99
DNS Servers: 68.94.156.1,68.94.157.1 (dns from my isp seems to work ok)

When i connect systems to this virtual network they don't pull ip's
automatically, even when i set it to obtain from dhcp, when i assign the
first ip in the range to my system it works. when i assign the next one, it
may or may not work.

Googled this for hours each night for the past week. I've exhausted every
idea i could think of.

Any help would be greatly appreciated.

If you could help via AIM please send me an IM on the screenname: XMETRIX

Thanks

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Related Messages

RE: Multiple Ip"s on guest OS

Sent: 08/30/2006
From: Niels Immink
Message:

HI xmetrix,

I am a bit puzzled whe you say it doesn't wokr when you add the extra ip's
to your B1. What exactly does not work? I can imagine that somehow RDP
wouldn' work, but several web sites would work. And if that is the case, is
your VM behaving differently than a physical box would?

The virtual network DHCP part is also puzzling me. Are you trying to obtain
more than 1 ip with the same NIC from DHCP? Or are you using several boxes?

Just let us know.
Regards,

Niels

"xmetrix" wrote:

Show quoted text

> I just had a quick question I hope someone can help me with. I need to assign
> multiple ip's to my virtual server's nic. I have tried many different things
> and can sometimes get 2-3 ip's to work on some machines but others fail. Here
> is my configuration
>
>
> HOST PC:
>
> Opteron 170
> 2gb ram
> Block of 128 PUBLIC ip's
> Broadcom NetXtreme Gigabit Ethernet #2 (PublicNetwork)
>
>
> VIRTUAL MACHINE:
>
> Windows 2003 Standard w/1gb ram 20gb vhd (named "B1")
> Intel 21140-Based PCI Fast Ethernet Adapter (Generic) (Emulated Virtual NIC)
>
>
> Currently I have "B1's" virtual network adapter connected to the following:
> Connected to â€œExternal Network (Broadcom NetXtreme Gigabit Ethernet #2)â€
>
> On the HOST, I have none of the ip's from my block of 128 assigned to it.
> On B1, I have statically assigned my starting ip (75.x.x.150) and it works
> fine. I can connect to B1 using remote desktop, and I can access the internet
> from B1. However, I want to add 10 ip's to this box (75.x.x.150 to
> 75.x.x.160) and when I add additional ip's it doesn't always work. I've tried
> adding it via Network Connections > Network adapter properties > tcp/ip >
> advanced > add ip as well as netsh interface ip add "Local Area
> Connection" 75.x.x.151 255.255.255.0.
>
> It's seems as though virtual server is hit and miss with the ip addresses.
> Sometimes i'll get the first 2 ip's assigned working, other times(or on other
> boxes) I wont.
>
> I have also tried creating a virtual network (named "75.x.x.100 to
> 75.x.x.228")
> which I've setup
>
> Network Address: 75.x.x.0
> Network Mask: 255.255.255.0
> Start IP Add: 75.x.x.100
> End IP Add: 75.x.x.228
> Virt DHCP IP Add: 75.x.x.1
> Default Gateway: 75.x.x.99
> DNS Servers: 68.94.156.1,68.94.157.1 (dns from my isp seems to work ok)
>
> When i connect systems to this virtual network they don't pull ip's
> automatically, even when i set it to obtain from dhcp, when i assign the
> first ip in the range to my system it works. when i assign the next one, it
> may or may not work.
>
> Googled this for hours each night for the past week. I've exhausted every
> idea i could think of.
>
> Any help would be greatly appreciated.
>
> If you could help via AIM please send me an IM on the screenname: XMETRIX
>
> Thanks

RE: Multiple Ip"s on guest OS

Sent: 08/30/2006
From: xmetrix
Message:

All I want to be able to do is have B1 accessible from the internet on
75.x.x.150 through 75.x.x.160 however I need to configure the system I don't
care. I just need it to work.

If I add those ip's directly to my HOST PC via

netsh interface ip add "Broadcom NetXtreme Connection #2 (Generic)"
75.x.x.150 255.255.255.0

netsh interface ip add "Broadcom NetXtreme Connection #2 (Generic)"
75.x.x.151 255.255.255.0

..152 153 154 etc. It works fine. I can ping all ip's from my home pc. I can
then remote into my box on any of the ip's. However, when I assign the ip's
to the Virtual Network card inside of the guest os (B1), and remove them from
Broadcom NetXtreme NIC on the HOST, it will only recognize the first IP. It's
almost as if Guest OS's can only have 1 IP per nic.

"Niels Immink" wrote:

Show quoted text

> HI xmetrix,
>
> I am a bit puzzled whe you say it doesn't wokr when you add the extra ip's
> to your B1. What exactly does not work? I can imagine that somehow RDP
> wouldn' work, but several web sites would work. And if that is the case, is
> your VM behaving differently than a physical box would?
>
> The virtual network DHCP part is also puzzling me. Are you trying to obtain
> more than 1 ip with the same NIC from DHCP? Or are you using several boxes?
>
> Just let us know.
> Regards,
>
> Niels
>
> "xmetrix" wrote:
>
> > I just had a quick question I hope someone can help me with. I need to assign
> > multiple ip's to my virtual server's nic. I have tried many different things
> > and can sometimes get 2-3 ip's to work on some machines but others fail. Here
> > is my configuration
> >
> >
> > HOST PC:
> >
> > Opteron 170
> > 2gb ram
> > Block of 128 PUBLIC ip's
> > Broadcom NetXtreme Gigabit Ethernet #2 (PublicNetwork)
> >
> >
> > VIRTUAL MACHINE:
> >
> > Windows 2003 Standard w/1gb ram 20gb vhd (named "B1")
> > Intel 21140-Based PCI Fast Ethernet Adapter (Generic) (Emulated Virtual NIC)
> >
> >
> > Currently I have "B1's" virtual network adapter connected to the following:
> > Connected to â€œExternal Network (Broadcom NetXtreme Gigabit Ethernet #2)â€
> >
> > On the HOST, I have none of the ip's from my block of 128 assigned to it.
> > On B1, I have statically assigned my starting ip (75.x.x.150) and it works
> > fine. I can connect to B1 using remote desktop, and I can access the internet
> > from B1. However, I want to add 10 ip's to this box (75.x.x.150 to
> > 75.x.x.160) and when I add additional ip's it doesn't always work. I've tried
> > adding it via Network Connections > Network adapter properties > tcp/ip >
> > advanced > add ip as well as netsh interface ip add "Local Area
> > Connection" 75.x.x.151 255.255.255.0.
> >
> > It's seems as though virtual server is hit and miss with the ip addresses.
> > Sometimes i'll get the first 2 ip's assigned working, other times(or on other
> > boxes) I wont.
> >
> > I have also tried creating a virtual network (named "75.x.x.100 to
> > 75.x.x.228")
> > which I've setup
> >
> > Network Address: 75.x.x.0
> > Network Mask: 255.255.255.0
> > Start IP Add: 75.x.x.100
> > End IP Add: 75.x.x.228
> > Virt DHCP IP Add: 75.x.x.1
> > Default Gateway: 75.x.x.99
> > DNS Servers: 68.94.156.1,68.94.157.1 (dns from my isp seems to work ok)
> >
> > When i connect systems to this virtual network they don't pull ip's
> > automatically, even when i set it to obtain from dhcp, when i assign the
> > first ip in the range to my system it works. when i assign the next one, it
> > may or may not work.
> >
> > Googled this for hours each night for the past week. I've exhausted every
> > idea i could think of.
> >
> > Any help would be greatly appreciated.
> >
> > If you could help via AIM please send me an IM on the screenname: XMETRIX
> >
> > Thanks

Post Reply | This is Spam! | Mark as Spam

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