2 nics in one computer?>

LIL L · 08-23-2009, 04:54 PM

this is kinda confusing so i'll try to explain it as much as possible.

i have a 8MB connection down 512KB up (bytes not bits) broadband and a netgear router. i have like 6 people in my house connected to my router and everythings all good nothing wrong there. i'm running windows 7 rtm build 7264. i got two nics and i was wondering if i can plug them both in and use some programs on one nic and other programs for the other? it didn't work when i had xp or when i had vista and i couldn't find information on exactly why it won't work (yes i searched all over the internet) but win 7 seems to have some new features i'm still discovering. would that be possible? it says its going through a switch but its not? (my connection is Mad-Labs)

if i go to my router configuration page and port forward my programs to one or the other nic, would windows 7 try to connect on my lan 1 and then switch automatically to my lan 2? would i be able to use both connections at the same time. maybe ftp on one and browsing on the other?

oh yeah, just in case you ask John Will lol:

PHP Code:


			
Microsoft Windows [Version 6.1.7264]

Copyright (c) 2009 Microsoft Corporation.  All rights reserved.



C:UsersThe Mas Scientist>ipconfig /all



Windows IP Configuration



   Host Name . . . . . . . . . . . . : Mad-Labs

   Primary Dns Suffix  . . . . . . . :

   Node Type . . . . . . . . . . . . : Hybrid

   IP Routing Enabled. . . . . . . . : No

   WINS Proxy Enabled. . . . . . . . : No



Ethernet adapter Local Area Connection 2:



   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : ADMtek AN983 based ethernet adapter

   Physical Address. . . . . . . . . : 00-1A-70-10-85-68

   DHCP Enabled. . . . . . . . . . . : Yes

   Autoconfiguration Enabled . . . . : Yes

   Link-local IPv6 Address . . . . . : fe80::ecb1:b9bb:211f:feb5%14(Preferred)

   IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.255.255.0

   Lease Obtained. . . . . . . . . . : Sunday, August 23, 2009 5:47:42 PM

   Lease Expires . . . . . . . . . . : Monday, August 24, 2009 5:47:42 PM

   Default Gateway . . . . . . . . . : 192.168.1.1

   DHCP Server . . . . . . . . . . . : 192.168.1.1

   DHCPv6 IAID . . . . . . . . . . . : 318773872

   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-12-9B-C4-00-40-2B-4F-62-59



   DNS Servers . . . . . . . . . . . : 192.168.1.1

   NetBIOS over Tcpip. . . . . . . . : Enabled



Ethernet adapter Local Area Connection:



   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast Ethernet

 NIC

   Physical Address. . . . . . . . . : 00-40-2B-4F-62-59

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

   Link-local IPv6 Address . . . . . : fe80::a4b5:fed0:38bc:e3d9%11(Preferred)

   IPv4 Address. . . . . . . . . . . : 192.168.1.15(Preferred)

   Subnet Mask . . . . . . . . . . . : 255.255.255.0

   Default Gateway . . . . . . . . . : 192.168.1.1

   DHCPv6 IAID . . . . . . . . . . . : 234897451

   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-12-9B-C4-00-40-2B-4F-62-59



   DNS Servers . . . . . . . . . . . : 192.168.1.1

   NetBIOS over Tcpip. . . . . . . . : Enabled



Tunnel adapter isatap.{8D084CFB-13B9-4830-8DF8-EBA902534566}:



   Media State . . . . . . . . . . . : Media disconnected

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Microsoft ISATAP Adapter

   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes



Tunnel adapter Local Area Connection* 11:



   Media State . . . . . . . . . . . : Media disconnected

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface

   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes



Tunnel adapter isatap.{C2ECF646-6D07-412F-8877-B5683762D67A}:



   Media State . . . . . . . . . . . : Media disconnected

   Connection-specific DNS Suffix  . :

   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2

   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

   DHCP Enabled. . . . . . . . . . . : No

   Autoconfiguration Enabled . . . . : Yes

Mcninjaguy · 08-23-2009, 10:49 PM

The reason to have two ethernet connections so you can have have ICS (internet connection sharing) or teamed ethernet with one port for download and one for uploading. This is meant for servers mostly

LIL L · 09-15-2009, 10:08 PM

thanks for the reply. so whats with the switch? i don't have one. i have eset smart security 4 and when i look at my network connections it says that some of my programs are using one and some are using the other. i guess its no harm right?

Mcninjaguy · 09-15-2009, 10:11 PM

I've got the same switch on my network map and its probably just the router.

LIL L · 09-30-2009, 08:36 PM

i've been working with this for some time now and i managed to find an article that has helped me greatly.

Quote:

Windows Firewall was introduced with XP, but only the version for Windows Vista was powerful enough to replace third party desktop firewalls. Actually, Vista’s firewall is better than many of the personal firewalls I have ever seen. Compared to these enhancements, Windows 7 only has a tiny improvement to offer. However, in some environments, it might turn out to be very useful.

You probably know that Windows distinguishes between Public, Home, and Work networks. Whenever you connect to a new network, Windows will ask what type of network it is. Each network has its own firewall profile, which allows you to configure different firewall rules depending on the security requirements of the user’s locations. You can use the Windows Firewall with Advanced Security’s snap-in filter to display only rules for specific locations. The corresponding firewall rule sets are Public (Public), Private (Home / Work), and Domain (when a domain-joined workstation detects a domain controller) (see comment below).

This works fine as long as you are only connected to one network at a time. As a matter of fact, more and more users now have their own networks at home. The problem is that once they connect to the corpnet, the Domain firewall rule set becomes active, which will break homegroup connections. The solution to this problem seems to be to work with multiple NICs. However, in Windows Vista, only one profile can be active on the computer at a time. Windows Sever 2008 machines that are connected to multiple networks suffer the same problem. In this case, the profile with the most restrictive settings is applied to all adapters on the computer.

Windows-7-Firewall-Protected-Connections Windows 7’s multiple active firewall profiles are the solution to this problem. It is now possible to assign each firewall profile to specific NICs. You can configure this feature in the Windows Firewall properties (right click on the root folder Windows Firewall with Advanced Security snap-in). This allows you to work with a different firewall profile for each network interface. If the computer is connected to multiple networks at a time, Windows Firewall will use the different rule sets for each NIC.

Note that this feature can’t be configured via Group Policy. At least the Group Policy settings of Windows Server 2008 R2 Beta don’t offer a corresponding option. The problem is that you can’t know in advance, for all external computers, which NIC is connected to the home network and which to the domain network. I guess that’s why you will have to configure this manually for each computer.

i'm still trying to configure my windows and my eset firewall to work at same time. thanks for all of the help and i hope this help many other people with this problem.

DT Roberts · 09-30-2009, 09:42 PM

Thanks for posting back. I've never heard of this before. I'll have to take a look myself.

08-23-2009, 04:54 PM	#1 (permalink)
LIL L Registered User Join Date: Apr 2008 Location: NC Posts: 245 OS: xp home edition	2 nics in one computer?> this is kinda confusing so i'll try to explain it as much as possible. i have a 8MB connection down 512KB up (bytes not bits) broadband and a netgear router. i have like 6 people in my house connected to my router and everythings all good nothing wrong there. i'm running windows 7 rtm build 7264. i got two nics and i was wondering if i can plug them both in and use some programs on one nic and other programs for the other? it didn't work when i had xp or when i had vista and i couldn't find information on exactly why it won't work (yes i searched all over the internet) but win 7 seems to have some new features i'm still discovering. would that be possible? it says its going through a switch but its not? (my connection is Mad-Labs) if i go to my router configuration page and port forward my programs to one or the other nic, would windows 7 try to connect on my lan 1 and then switch automatically to my lan 2? would i be able to use both connections at the same time. maybe ftp on one and browsing on the other? oh yeah, just in case you ask John Will lol: PHP Code: Microsoft Windows [Version 6.1.7264] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:UsersThe Mas Scientist>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : Mad-Labs Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : ADMtek AN983 based ethernet adapter Physical Address. . . . . . . . . : 00-1A-70-10-85-68 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::ecb1:b9bb:211f:feb5%14(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Sunday, August 23, 2009 5:47:42 PM Lease Expires . . . . . . . . . . : Monday, August 24, 2009 5:47:42 PM Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 318773872 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-12-9B-C4-00-40-2B-4F-62-59 DNS Servers . . . . . . . . . . . : 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast Ethernet NIC Physical Address. . . . . . . . . : 00-40-2B-4F-62-59 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::a4b5:fed0:38bc:e3d9%11(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.15(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 234897451 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-12-9B-C4-00-40-2B-4F-62-59 DNS Servers . . . . . . . . . . . : 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{8D084CFB-13B9-4830-8DF8-EBA902534566}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 11: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{C2ECF646-6D07-412F-8877-B5683762D67A}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes

08-23-2009, 10:49 PM	#2 (permalink)
Mcninjaguy Temporarily Banned Join Date: Jun 2008 Location: Ottawa, Ontario, Canada Posts: 10,422 OS: Windows 7 Ultimate 64bit My System Blog Entries: 1	Re: 2 nics in one computer?> The reason to have two ethernet connections so you can have have ICS (internet connection sharing) or teamed ethernet with one port for download and one for uploading. This is meant for servers mostly

09-15-2009, 10:08 PM	#3 (permalink)
LIL L Registered User Join Date: Apr 2008 Location: NC Posts: 245 OS: xp home edition	Re: 2 nics in one computer?> thanks for the reply. so whats with the switch? i don't have one. i have eset smart security 4 and when i look at my network connections it says that some of my programs are using one and some are using the other. i guess its no harm right?

09-15-2009, 10:11 PM	#4 (permalink)
Mcninjaguy Temporarily Banned Join Date: Jun 2008 Location: Ottawa, Ontario, Canada Posts: 10,422 OS: Windows 7 Ultimate 64bit My System Blog Entries: 1	Re: 2 nics in one computer?> I've got the same switch on my network map and its probably just the router.

09-30-2009, 09:42 PM	#6 (permalink)
DT Roberts Windows Tech Team Join Date: Jun 2009 Location: Massachusetts Posts: 1,171 OS: Windows 7 RTM (x64), Vista SP2, XP Pro, Windows 7, Ubuntu 9.04 My System	Re: 2 nics in one computer?> Thanks for posting back. I've never heard of this before. I'll have to take a look myself. __________________ A+ Certified Technician Using Device Manager Shrinking Partitions