In , on
08/03/05
   at 02:10 PM, "Don(ald) O. Woodall"
 said:

>> - add the IP address of each NIC port to your diagram because
>>   it will help you visualize what you need to do

>     Umm, here you have me going.

>     I have two IP addresses.

>     I have three NIC's.

>     "I" associate each address with a computer, not a NIC.

No can do.  Each ethernet port needs a unique IP address.  This includes
the ethernet ports on the DLink.

>     By the way, this brings up a question of mine.  On my
>"Firewall Computer" (192.168.49.11), how do I software wise
>confirm which NIC is "LANO" and which NIC is "LAN1"?

Look at setup.cmd or use:

 ifconfig lan0

and

 ifconfing lan1


>> - use
>>     netstat -r
>>   to ensure that the routing you defined in setup.cmd is
>>   really what you meant

>     This is probably going to mess things up.

How?

>     Here is a netstat -r from the old, half working connection.

I'll annotate it a bit for you.

You have a dial up connection.

>default           69.209.127.254    0.0.0.0           0   UGP   ppp0

All packets that are not sent elsewhere get sent to 69.209.127.254.  This
is the IP address of your side of the ppp interface.

>67.36.55.26       69.209.127.254    255.255.255.255   0 UGHW3   ppp0
>68.142.229.13     69.209.127.254    255.255.255.255   0 UGHW3   ppp0
>68.142.229.41     69.209.127.254    255.255.255.255   0 UGHW3   ppp0

These are routes discovered and cached by the tcpip stack.

>69.209.118.42     127.0.0.1         255.255.255.255   0    UH     lo

This is either a manual hosts entry to prevent spam or maybe something set
up by injoy.

What is your DSL IP address?

>69.209.127.254    69.209.118.42     255.255.255.255   0    UH   ppp0

Another cached route.

>127.0.0.1         127.0.0.1         255.255.255.255   0    UH     lo

>128.118.25.3      69.209.127.254    255.255.255.255   0  UGHW   ppp0

Another cached route.

>192.168.49        192.168.49.11     255.255.255.0     0    UC   lan0

The route to your firewall computer probably.

>     I want to reduce my electrical usage.  I want to eliminate my
>Firewall computer and replace it with the DLink DI604 router.

This is easy.  Use Philip's diagram as a guide.

As far as IP addresses go, it can be as simple as what I use on the box I
am currently typing on:

route -fh
ifconfig lo 127.0.0.1
ifconfig lan0 192.168.0.2 netmask 255.255.255.0
:: from 1492 to 1500 16 Sep 03 SHL
ifconfig lan0 mtu 1500
route add default 192.168.0.1 -hopcount 1 
ipgate off

192.168.0.1 is the DLink.  192.168.0.2 is this box.  Note what I said
above.  Two ethernet ports.  Two unique IP addresses.

After adjusting the IP addresses, this is all you need on the existing
firewall box to talk through the DLink to your DSL provider.  Ping should
respond:

[j:\tmp\00instal]ping 192.168.0.1
PING 192.168.0.1: 56 data bytes
64 bytes from 192.168.0.1: icmp_seq=0. time=0. ms
64 bytes from 192.168.0.1: icmp_seq=1. time=0. ms

Immediately after running setup.cmd, netstat -r says:

[j:\tmp\00instal]netstat -r
  destination             router                netmask     metric flags
intrf

default                192.168.0.1            0.0.0.0           1  UGSP  
lan0 127.0.0.1              127.0.0.1              255.255.255.255   0   
UH     lo 192.168                192.168.0.2            255.255.255.0    
0    UC   lan0

What this says is that everything other than lookback packets go to the
router via the lan0 interface.  This includes packets addresses to
192.168.x.x because both 192.168.0.2 and 192.168.0.1 are on the same
network segment.

Steven

-- 
----------------------------------------------------------------------
"Steven Levine"   MR2/ICE 2.67
#10183 Warp4.something/14.100c_W4
www.scoug.com irc.fyrelizard.com #scoug (Wed 7pm PST)
----------------------------------------------------------------------



 
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