IP masquerading basics for a home LAN

  • Thread starter Thread starter hawat.thufir
  • Start date Start date
H

hawat.thufir

I'm referencing
<http://www.tldp.org/HOWTO/Masquerading-Simple-HOWTO/intro.html>,
which is a linux how-to diagram. For my setup the external IP must, I
believe,
remain dynyamic (DHCP?). For consistency with the diagram the internal
IP
is 192.168.0.1 and the internal machine IP address is 192.168.2. The
two
computers are connected with a hub. As can be seen below, pings
between
arrakis and caladan are working fine.


I'm also looking at:
<http://support.microsoft.com/default.aspx?scid=kb;en-us;230082>
<http://support.microsoft.com/default.aspx?scid=kb;en-us;178993>


some terminal output:

Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.

C:\Documents and Settings\Administrator>cd ..

C:\Documents and Settings>cd ..

C:\>date
The current date is: Tue 07/12/2005
Enter the new date: (mm-dd-yy)
C:\>time
The current time is: 17:54:46.65
Enter the new time:
C:\>ping 192.168.0.2

Pinging 192.168.0.2 with 32 bytes of data:

Reply from 192.168.0.2: bytes=32 time<10ms TTL=128
Reply from 192.168.0.2: bytes=32 time<10ms TTL=128
Reply from 192.168.0.2: bytes=32 time<10ms TTL=128
Reply from 192.168.0.2: bytes=32 time<10ms TTL=128

Ping statistics for 192.168.0.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\>ipconfig /all

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : arrakis
Primary DNS Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : SiS 900 PCI Fast Ethernet
Adapter
Physical Address. . . . . . . . . : 00-0A-E6-A0-24-27
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.2.175
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DNS Servers . . . . . . . . . . . : 192.168.2.1
Lease Obtained. . . . . . . . . . : Tuesday, July 12, 2005
5:52:53 PM
Lease Expires . . . . . . . . . . : Tuesday, July 19, 2005
5:43:04 PM

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : D-Link DFE-538TX 10/100
Adapter
Physical Address. . . . . . . . . : 00-0D-88-37-FA-22
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . :

C:\>



do I want static IP routing, or IP forwarding?



thanks,

Thufir
 
do I want static IP routing, or IP forwarding?
Click to expand...

They are the same thing.
Yes, the "Industry slang" has perverted the meanings, but they are the same
thing.
So what you are really asking is "Do I want IP routing or NAT?"

Regular Layer3 Routing = "IP Routing" (Windows200*/Cisco world)
or "IP Forwarding" (WindowsNT4/Linux/Unix
world)

IP Masquerading (Linux/Unix world) = NAT (Windows/Cisco world)

If you want to perform in the Windows Server realm what you are reading
about in the Linux/Unix realm (IP Masquerading) then you would build a
Windows Server Machine to be a "NAT Device" by using RRAS.

One article is for 2000, the other is for 2003, but the process is pretty
much identical:

299801 - HOW TO: Configure a Windows 2000 Server as a Network Address
Translation Server
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q299801

How to configure Network Address Translation in Windows Server 2003
http://support.microsoft.com/default.aspx?scid=kb;en-us;816581

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
-----------------------------------------------------
Understanding the ISA 2004 Access Rule Processing
http://www.isaserver.org/articles/ISA2004_AccessRules.html

Microsoft Internet Security & Acceleration Server: Guidance
http://www.microsoft.com/isaserver/techinfo/Guidance/2004.asp
http://www.microsoft.com/isaserver/techinfo/Guidance/2000.asp

Microsoft Internet Security & Acceleration Server: Partners
http://www.microsoft.com/isaserver/partners/default.asp
-----------------------------------------------------
 
Back
Top