Two IPs on one NIC

gdyson75 · 08-19-2008, 06:10 PM

I have a network that is running Windows server 2003 and Windows Server 2008. The 2008 server is running Exchange 2007. I would like to assign both public and private IP addresses to them. The only issue is that both have only one NIC in them. Is there a way to have both a public and private IP address on the same NIC. Any help would be appreciated.

elf · 08-23-2008, 02:04 PM

To my knowledge that is not possible...though in this day and age almost anything is possible.

edit: Looks like I may have been wrong. See if this link helps at all...
http://windowsitpro.com/article/arti...ingle-nic.html

rthomp8363 · 08-26-2008, 09:44 PM

This can be done if you dont assign via DHCP. If you manually assign the address, you can set up multiple ip addresses on one NIC. Set the IP Address, then select advance, you can add more there. Might have to play with the routing tables to get everything to work the way you want though.

amar8585 · 09-02-2008, 02:27 AM

just configure nat server in your server it will act as a router or switch.After configuring nat server u can acess both public and private ip adress in same system

**bilbus** · 09-03-2008, 10:16 PM

You can give two ip addresses to a single nic, but how would you give it both a outside and a inside ip?

It's on two diff subnets, using two diff gateways.

If both inside and outside are on the same cable .. how is it inside and outside?

does not make any sence

rthomp8363 · 09-20-2008, 10:49 PM

There are a few articles you can read on microsoft's website that might help you understand better http://support.microsoft.com/search/...3comm=1&res=20

**bilbus** · 09-20-2008, 10:54 PM

right, but you can't set a external and internal ip on the same nic.

08-19-2008, 06:10 PM	#1 (permalink)
gdyson75 Registered User Join Date: Aug 2008 Posts: 2 OS: Windows Server 2003	Two IPs on one NIC I have a network that is running Windows server 2003 and Windows Server 2008. The 2008 server is running Exchange 2007. I would like to assign both public and private IP addresses to them. The only issue is that both have only one NIC in them. Is there a way to have both a public and private IP address on the same NIC. Any help would be appreciated.

08-23-2008, 02:04 PM	#2 (permalink)
elf Manager, Microsoft Support Join Date: Jul 2002 Location: Knoxville, TN or Austin, TX depending Posts: 7,049 OS: WinXP Pro SP3 and Windows 7 My System	Re: Two IPs on one NIC To my knowledge that is not possible...though in this day and age almost anything is possible. edit: Looks like I may have been wrong. See if this link helps at all... http://windowsitpro.com/article/arti...ingle-nic.html __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! I do not subscribe to threads, so if I stop replying, PM me with a link to your thread so I can find it again. Last edited by elf; 08-23-2008 at 02:14 PM.

08-26-2008, 09:44 PM	#3 (permalink)
rthomp8363 Registered User Join Date: Aug 2008 Posts: 69 OS: XP	Re: Two IPs on one NIC This can be done if you dont assign via DHCP. If you manually assign the address, you can set up multiple ip addresses on one NIC. Set the IP Address, then select advance, you can add more there. Might have to play with the routing tables to get everything to work the way you want though.

09-02-2008, 02:27 AM	#4 (permalink)
amar8585 Registered User Join Date: Sep 2008 Posts: 6 OS: xp	Re: Two IPs on one NIC just configure nat server in your server it will act as a router or switch.After configuring nat server u can acess both public and private ip adress in same system

09-03-2008, 10:16 PM	#5 (permalink)
bilbus TSF Enthusiast Join Date: Aug 2006 Posts: 958 OS: OS2 Warp	Re: Two IPs on one NIC You can give two ip addresses to a single nic, but how would you give it both a outside and a inside ip? It's on two diff subnets, using two diff gateways. If both inside and outside are on the same cable .. how is it inside and outside? does not make any sence

09-20-2008, 10:49 PM	#6 (permalink)
rthomp8363 Registered User Join Date: Aug 2008 Posts: 69 OS: XP	Re: Two IPs on one NIC There are a few articles you can read on microsoft's website that might help you understand better http://support.microsoft.com/search/...3comm=1&res=20

09-20-2008, 10:54 PM	#7 (permalink)
bilbus TSF Enthusiast Join Date: Aug 2006 Posts: 958 OS: OS2 Warp	Re: Two IPs on one NIC right, but you can't set a external and internal ip on the same nic.