Question

Multiple NIC cards

Asked by: cglenn3932

I have two connections to the Internet.  One Linksys router is set up as 192.168.1.1 and services my "Intranet" (i.e.--supplies outbound internet access to most of my computers.  The second linksys router is setup as 192.168.1.2 and services my DMZ.  THese are actually two physically separate networks--the reason the second router is x.x.x.2 is so that those PCs that are connected to both can access the router admin for the intranet at x.x.x.1 and the DMZ router admin at x.x.x.2

Some computers in my DMZ have two NIC cards (one to connect to my intranet 192.168.1.1 and one to connect to the DMZ 192.168.1.2)  

My main server has two NIC cards:

one has an IP of 192.168.1.24 and a gateway of 192.168.1.2

the other has an IP of 192.168.1.34 and a gateway of 192.168.1.1

I cannot connect to 192.168.1.2 either by pinging or by trying to get to the linksys router admin page by typing the x.x.1.2 in my browser.  

Here is my route table as it stands right now:

Active Routes:

  Network Address          Netmask  Gateway Address        Interface  Metric
          0.0.0.0          0.0.0.0      192.168.1.1     192.168.1.34       1
          0.0.0.0          0.0.0.0      192.168.1.2     192.168.1.24       1
        127.0.0.0        255.0.0.0        127.0.0.1        127.0.0.1       1
      192.168.1.0    255.255.255.0     192.168.1.34     192.168.1.34       1
      192.168.1.0    255.255.255.0     192.168.1.24     192.168.1.24       1
     192.168.1.24  255.255.255.255        127.0.0.1        127.0.0.1       1
     192.168.1.34  255.255.255.255        127.0.0.1        127.0.0.1       1
    192.168.1.255  255.255.255.255     192.168.1.34     192.168.1.34       1
        224.0.0.0        224.0.0.0     192.168.1.24     192.168.1.24       1
        224.0.0.0        224.0.0.0     192.168.1.34     192.168.1.34       1
  255.255.255.255  255.255.255.255     192.168.1.24          0.0.0.0       1

What do I need to do to force 192.168.1.2 to always go to the x.x.x.24 card?

I want to be able to admin the router from this machine and I cannot do it if the X.X.X.2 does not get routed to the X.X.X.24 card

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Asked On
2005-12-01 at 11:23:19ID21649805
Tags

nic

,

multiple

,

cards

Topic

Windows 95 - 98 Networking

Participating Experts
2
Points
500
Comments
6

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Answers

 

by: grayePosted on 2005-12-12 at 18:40:13ID: 15471364

Hang on a second...

Unless you've typed the IP addresses incorrectly in your question, you've a world of a mess with you addressing scheme.

Why would you have two separate networks with overlapping IP addresses?   It would make a heck of a lot more sense to separate the two networks into *different* IP address spaces:

    Network #1      192.168.1.0   255.255.255.0   192.168.1.1 (as the gateway)
    Network #2      192.168.2.0   255.255.255.0   192.168.2.1 (as the gateway)

If you did that, the routing between the two networks should be trival...

 

by: cglenn3932Posted on 2005-12-19 at 17:37:15ID: 15515860

Now I have done as you suggested and it still does not work.  Here is my table


Active Routes:

  Network Address          Netmask  Gateway Address        Interface  Metric
          0.0.0.0          0.0.0.0      192.168.1.1     192.168.1.34       1
          0.0.0.0          0.0.0.0      192.168.2.1     192.168.2.34       1
        127.0.0.0        255.0.0.0        127.0.0.1        127.0.0.1       1
      192.168.1.0    255.255.255.0     192.168.1.34     192.168.1.34       1
     192.168.1.34  255.255.255.255        127.0.0.1        127.0.0.1       1
    192.168.1.255  255.255.255.255     192.168.1.34     192.168.1.34       1
      192.168.2.0    255.255.255.0     192.168.2.34     192.168.2.34       1
     192.168.2.34  255.255.255.255        127.0.0.1        127.0.0.1       1
        224.0.0.0        224.0.0.0     192.168.2.34     192.168.2.34       1
        224.0.0.0        224.0.0.0     192.168.1.34     192.168.1.34       1
  255.255.255.255  255.255.255.255     192.168.2.34          0.0.0.0       1

 

by: grayePosted on 2005-12-19 at 18:00:16ID: 15515939

OK, the next step is to use your PC (the one with the 2 NIC cards) as a router.   That makes 3 routers (2 hardware routers, and 1 software router).

WinXP has no Routing and Remote Access applet like the Server versions of windows, so  you have to edit the registry to allow routing between the two segments.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\IPEnableRouter = 1

http://www.windowsnetworking.com/articles_tutorials/w2kprout.html

 

by: InfoStrangerPosted on 2006-01-16 at 19:26:07ID: 15716756

The question seems to have many issues going on here.  graye is right about the IP of the routers.  Each device is only accessible to one router at a time.  With two network cards, the computer is hooking on to both routers.  You will have major conflict issues especially with Win 95.

1) One linksys router can already separate DMZ from the rest of the network.  This is in the setup wizard.  I don't understand why you need 2 unless you have a lot of computers or you are protecting one area with one router and checking the area before the second router.
2) DMZ solution can be a quick one since it just means that the computers are not protected by the router
                    - get a switch and connect directly to the modem
                    - attach the router to one of the ports of the switch
                    - all the computers in the switch are DMZ and the router protects the rest
3) If you want to do the 2 router thing, you are correct in giving separate IP for each router.  Right now, you have not shown us what you have done.  All the output is from the computer itself.  If you want us to help you with the router, you need to tell us the settings of the router.
                    - Following should be the settings of the routers:  router1    IP Address is 192.168.1.1 with gateway 192.168.0.1
                                                                                            router2    IP Address is 192.168.2.1 with gateway 192.168.1.1

If you do #3, you do not need 2 cards in your computer.  You just need one to access router (gateway) 192.168.2.1 .  With this in mind, the access to both routers is via a web browser to 192.168.2.1 and 192.168.1.1, router2 and router1 respectively.  The reason for this solution is a simple one.  Here is the map:

modem  ----  router1  ----  router2  ----  computer

If computer has access to router2, it has access to router1 and the modem.  You can then check on both routers and the modem as long as you have admin login and password.  This works because I have done this already just with out the DMZ.

20120131-EE-VQP-002

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