Two Public IPs on one NIC

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Hi,

Is it possible to configure two static public IP addresses for use on one
NIC? If so, is there a document on how to do this correctly? I have two
websites with different public IP addresses and only one NIC available. They
both use SSL with different certificates so I need to keep them on their own
IPs.

Thanks in advance,
Paddy.
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Re: Two Public IPs on one NIC by Neil

Neil
Mon Feb 09 03:22:19 CST 2004

I can't see it being a problem as we are running three ip's on our external
nic just for this purpose. However ours are an internal address range due to
our unique connection setup.

In the advanced TCP/IP settings, just add the ip in there. As an example we
have;

SBS
192.168.1.20 - used for MX
192.168.1.21 - used for vpn
192.168.1.22 - used for OWA SSL

And on our router, there is a unique external IP mapped to each one. eg

xxx.xxx.xxx.1 -> 192.168.1.20
xxx.xxx.xxx.2 -> 192.168.1.21
xxx.xxx.xxx.3 -> 192.168.1.22

Your setup should be simpler as you'd just add the real external IP into the
advanced TCP/IP settings. Then in IIS you can select what IP the relevant
web sites listen on.

HTH

Neil


"Paddy Ryan" <paddy@fpmt.org> wrote in message
news:%238mtPbn7DHA.1636@TK2MSFTNGP12.phx.gbl...
> Hi,
>
> Is it possible to configure two static public IP addresses for use on one
> NIC? If so, is there a document on how to do this correctly? I have two
> websites with different public IP addresses and only one NIC available.
They
> both use SSL with different certificates so I need to keep them on their
own
> IPs.
>
> Thanks in advance,
> Paddy.
>
>
>


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Re: Two Public IPs on one NIC by Paddy

Paddy
Mon Feb 09 15:49:56 CST 2004

Thanks. It seems to work. Except the second IP I have added does not seem to
work for its website across the internet on port 80 or 8080 but it does work
on SSL 443 and 8081 which seems weird?

Any clues?

thanks
Paddy

"Neil Oakman" <jellylord@loosethiShotmail.com> wrote in message
news:efk%23A5u7DHA.2676@TK2MSFTNGP10.phx.gbl...
> I can't see it being a problem as we are running three ip's on our
external
> nic just for this purpose. However ours are an internal address range due
to
> our unique connection setup.
>
> In the advanced TCP/IP settings, just add the ip in there. As an example
we
> have;
>
> SBS
> 192.168.1.20 - used for MX
> 192.168.1.21 - used for vpn
> 192.168.1.22 - used for OWA SSL
>
> And on our router, there is a unique external IP mapped to each one. eg
>
> xxx.xxx.xxx.1 -> 192.168.1.20
> xxx.xxx.xxx.2 -> 192.168.1.21
> xxx.xxx.xxx.3 -> 192.168.1.22
>
> Your setup should be simpler as you'd just add the real external IP into
the
> advanced TCP/IP settings. Then in IIS you can select what IP the relevant
> web sites listen on.
>
> HTH
>
> Neil
>
>
> "Paddy Ryan" <paddy@fpmt.org> wrote in message
> news:%238mtPbn7DHA.1636@TK2MSFTNGP12.phx.gbl...
> > Hi,
> >
> > Is it possible to configure two static public IP addresses for use on
one
> > NIC? If so, is there a document on how to do this correctly? I have two
> > websites with different public IP addresses and only one NIC available.
> They
> > both use SSL with different certificates so I need to keep them on their
> own
> > IPs.
> >
> > Thanks in advance,
> > Paddy.
> >
> >
> >
>
>


Top

Re: Two Public IPs on one NIC by Neil

Neil
Tue Feb 10 02:56:27 CST 2004

The only thing I can think of is that one of your webs still has 'All
unassigned' in its ip address settings. Not really sure if that would do it
as all unassigned kind of makes you think that any that are used for other
webs would not be used for that!

you can give it a try though, all the webs I have have an IP assigned to
them so I've not seen the problem you have.

Neil

"Paddy Ryan" <paddy@fpmt.org> wrote in message
news:O9B3pa17DHA.804@tk2msftngp13.phx.gbl...
> Thanks. It seems to work. Except the second IP I have added does not seem
to
> work for its website across the internet on port 80 or 8080 but it does
work
> on SSL 443 and 8081 which seems weird?
>
> Any clues?
>
> thanks
> Paddy
>
> "Neil Oakman" <jellylord@loosethiShotmail.com> wrote in message
> news:efk%23A5u7DHA.2676@TK2MSFTNGP10.phx.gbl...
> > I can't see it being a problem as we are running three ip's on our
> external
> > nic just for this purpose. However ours are an internal address range
due
> to
> > our unique connection setup.
> >
> > In the advanced TCP/IP settings, just add the ip in there. As an example
> we
> > have;
> >
> > SBS
> > 192.168.1.20 - used for MX
> > 192.168.1.21 - used for vpn
> > 192.168.1.22 - used for OWA SSL
> >
> > And on our router, there is a unique external IP mapped to each one. eg
> >
> > xxx.xxx.xxx.1 -> 192.168.1.20
> > xxx.xxx.xxx.2 -> 192.168.1.21
> > xxx.xxx.xxx.3 -> 192.168.1.22
> >
> > Your setup should be simpler as you'd just add the real external IP into
> the
> > advanced TCP/IP settings. Then in IIS you can select what IP the
relevant
> > web sites listen on.
> >
> > HTH
> >
> > Neil
> >
> >
> > "Paddy Ryan" <paddy@fpmt.org> wrote in message
> > news:%238mtPbn7DHA.1636@TK2MSFTNGP12.phx.gbl...
> > > Hi,
> > >
> > > Is it possible to configure two static public IP addresses for use on
> one
> > > NIC? If so, is there a document on how to do this correctly? I have
two
> > > websites with different public IP addresses and only one NIC
available.
> > They
> > > both use SSL with different certificates so I need to keep them on
their
> > own
> > > IPs.
> > >
> > > Thanks in advance,
> > > Paddy.
> > >
> > >
> > >
> >
> >
>
>


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