Two NICs & Two Separate Networks?

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Two NICs & Two Separate Networks?

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Two NICs & Two Separate Networks?

Postby bendoney » Wed, 18 Feb 2004 07:21:05 GMT 

Question about a proposed office network.... All Windows XP systems


Network 1:
 Cable Modem ---> Router / Firewall ---> 3Com Hub ---> NIC #1 In
Machine (TCP/IP & DHCP)

Network 2:
 3Com Switch  ---> NIC #2 In Machine (IPX/SPX & Set IP Address)

I was told running a different protocol such as IPX/SPX on the second
network would make it more secure, is this true?

I understand that the PC's still are connected to the internet on
network 1 but wouldn't it be more secure since network 2 isn't
directly connected to the internet and in order to access network 2 a
hacker would have to go through the firewall and then though the
machine?


The server will be on network 2 and will not need internet access. 
One would think that since it is on a separate network it would be
more secure than being connected directly to network #1

Any ideas?
Top

Re: Two NICs & Two Separate Networks?

Postby Ramsin G » Thu, 19 Feb 2004 09:26:36 GMT 

well a hacker that comes in through the internet would most likely be using
TCP/IP. If your second network is using IPX/SPX then i guess it makes it
harder for that hacker to access.

It's not impossible but its a damn right annoyance to the hacker. You also
get the die {*filter*}es, who would go through a great deal just to prove a
point.

The harder you make it for hackers the better. SO i guess it is a good idea

Email Scanned with Norton Anti-Virus!!!
========================================================
Top

Similar Threads:

1.Two NICs And Two Separate Networks? 

Question about a proposed office network.... All Windows XP systems


Network 1:
 Cable Modem ---> Router / Firewall ---> 3Com Hub ---> NIC #1 In
Machine (TCP/IP & DHCP)

Network 2:
 3Com Switch  ---> NIC #2 In Machine (IPX/SPX & Set IP Address)

I was told running a different protocol such as IPX/SPX on the second
network would make it more secure, is this true?

I understand that the PC's still are connected to the internet on
network 1 but wouldn't it be more secure since network 2 isn't
directly connected to the internet and in order to access network 2 a
hacker would have to go through the firewall and then though the
machine?


The server will be on network 2 and will not need internet access. 
One would think that since it is on a separate network it would be
more secure than being connected directly to network #1

Any ideas?

2.Is it possible two have two separate "IE profiles" - to get two separate cookies 

Hello all,
We have an Single Signon-enabled application that allows 
one browser session at a time.  If another session is open 
(through New Window function), the first session may 
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way to differentiate these browser sessions (log into the 
SSO-enabled application separately but on same machine) - 
the idea is to have two different cookies, hence two 
different states.  

Appreciate any thoughts on this.  This works if I use 
Mozilla.
Thanks,
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3.two network cards and two separate networks 

I have two NIC, one connected to our university network, one on a 100.1.1.* 
internal network. I want to configure the cards such that requests to the 
100.1.1.* network will only be processed by one nic and all other requests 
are send to the other nic. And now the question: How can I do this????
BTW I am working with Windows XP SP2 and two Broadcom NetXtreme Gigabit 
Ehternet cards.

Thanks a lot for your kind help.

Bernd

4.two dsl connections, two routers, dual nics on linux box , want to run two websites 

Hello,

I have two dsl connections, with one public ip on each. I have a linux
box with two nic cards.

xx.xx.xx.xx(WAN)---ROUTER(LAN23.123.45.110) ---- MYLINUX
(23.123.45.107) eth1
yy.yy.yy.yy(WAN)---ROUTER(LAN192.182.1.1)   ---- MYLINUX
(192.168.1.100) eth0

I have apache listening on both interfaces. 

Problem:

1. How do I make the packets route back to the gateway from which they
originate.

Currently the gateway marked as "default" is able to serve content
from the apache. The other one cannot.

I tried adding static routes, but that didn't work.

Any help is appreciated.

Thanks
Jay

---------------------------------------------------------------------
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref   
Use Iface
adsl-23-123-45- adsl-23-123-45- 255.255.255.255 UGH   0      0       
0 eth1
23.123.45.0     *               255.255.255.0   U     0      0       
0 eth1
192.168.1.0     *               255.255.255.0   U     0      0       
0 eth0
loopback        *               255.0.0.0       U     0      0       
0 lo
default         192.168.1.1     0.0.0.0         UG    1      0       
0 eth0


eth0      Link encap:Ethernet  HWaddr 00:0D:87:57:A0:DE
          inet addr:192.168.1.100  Bcast:192.168.1.255 
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3060612 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3577217 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:1566982235 (1494.3 Mb)  TX bytes:1126616733 (1074.4
Mb)
          Interrupt:11 Base address:0xe000

eth1      Link encap:Ethernet  HWaddr 00:40:05:39:0E:EA
          inet addr:23.123.45.107  Bcast:68.123.24.255 
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:90635 errors:0 dropped:0 overruns:0 frame:0
          TX packets:31082 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:23017102 (21.9 Mb)  TX bytes:13283751 (12.6 Mb)
          Interrupt:11 Base address:0xe000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:11888 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11888 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:6920794 (6.6 Mb)  TX bytes:6920794 (6.6 Mb)

5.two nics - two networks 

I have a windows 2003 server with one nic (192.168.100.x).  We just 
purchased a second company that's in our building.  Can I add a second nic 
and configure it to there network ip scheme (192.168.25.x) so that I can 
share one server?  I want to share the server, just not the information on 
the server.  Will either of the networks be able to one another if I don't 
bridge the networks cards?  Thanks for any help you can provide.

A

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