[mdlug] Network routing and subnetting?

[Michael ORourke]

I see in your previous reply, you are using NAT on the wireless routers.  So the wired side would have an IP on the main network and should be translating the addresses on the Wireless side.  I don't see why that doesn't work.  Unless you were trying to get from Wireless A to Wireless B, (for example: connecting from 10.0.1.5 to 10.0.2.5.  That won't work without adding some static routes.  Are you seeing connections getting to the hosts from the Wireless side?  Are you trying to connect FROM the wireless to the 10.0.0.x network, or the other way around?

-Mike

-----Original Message-----
>From: Mathew Enders <mathew.enders at prodigy.net>
>Sent: Jan 8, 2008 11:37 PM
>To: MDLUG's Main discussion list <mdlug at mdlug.org>
>Subject: Re: [mdlug] Network routing and subnetting?
>
>On Tue, 2008-01-08 at 13:45 -0500, Michael ORourke wrote:
>> In the "current" setup, are they doing NAT?  Sounds like you need to add 
>> some static routes.
>> Something along the lines of:
>> network 10.0.1.0  255.255.255.0 go to 10.0.0.215
>> network 10.0.2.0  255.255.255.0 go to 10.0.0.223
>> I would guess that you have an Internet Router somewhere in the mix on the 
>> 10.0.0.x, perhaps with a private IP of 10.0.0.1/24.  And the default routes 
>> of the boxes on that net are set to 10.0.0.1, or the equivalent.  So anytime 
>> something tries to connect to say a box on 10.0.0.10 from the 10.0.1.0 net 
>> (or 10.0.2.0 network), the return packets would be sent to the Internet 
>> router (10.0.0.1 for example).
>> 
>> -Mike
>> 
>Mike I am not sure I understand what you are saying.  Iam attaching a
>copy of the dhcp.conf file the section of addresses blocked out for
>wireless is 10.0.0.200 - 10.0.0.253 for the proposed solution they are
>currently not being used by anything.
>
>#
># Sample configuration file for ISC dhcpd for Debian
>#
># $Id: dhcpd.conf,v 1.1.1.1 2002/05/21 00:07:44 peloy Exp $
>#
>
>ddns-update-style none;
>ignore client-updates;
>
># Network Declaratioon
>#
># The range of IP addresses the server
># will issue to DHCP enabled PC clients
># booting up on the network
>#
># Set the default gateway to be used by
># the PC clients
>
>subnet 10.0.0.0.0 netmask 255.255.255.0 {
>	range 10.0.0.0.1 10.0.0.0.48;
>	range 10.0.0.0.50 10.0.0.0.100;
>	range 10.0.0.0.124 10.0.0.0.141;
>	range 10.0.0.0.152 10.0.0.0.199;
>	option routers 10.0.0.0.254;
>}
>
># Set the amount of time in seconds that
># a client may keep the IP address
>
>default-lease-time 3600;
>max-lease-time 7200;
>
># Don't forward DHCP requests from this
># NIC interface to any other NIC
># interfaces
>
>option ip-forwarding off;
>
># Set the broadcast address and subnet mask
># to be used by the DHCP clients
>
>option broadcast-address 10.0.0.0.255;
>option subnet-mask 255.255.255.0;
>
># Set the DNS server to be used by the
># DHCP clients
>
>option domain-name-servers 68.94.156.1, 68.94.157.1;
>
># Set the NTP server to be used by the
># DHCP clients
>
>#option nntp-server 000.000.000.000;
>
># If you specify a WINS server for your Windows clients,
># you need to include the following option in the dhcpd.conf file:
>
>#option netbios-name-servers 000.000.000.000;
>
># You can also assign specific IP addresses based on the clients'
># ethernet MAC address as follows Host's name is "unique-name":
>
>host comp-lab-printer {
>	hardware ethernet 00:04:00:f0:c1:eb;
>	fixed-address 10.0.0.0.49;
> }
>host ARDVARC {
>	hardware ethernet 00:16:17:b2:62:e9;
>	fixed-address 10.0.0.0.101;
> }
>host BOSS-dansguardian {
>	hardware ethernet 00:0c:6e:27:0c:ef;
>	fixed-address 10.0.0.0.115;
> }
>host BOSS-dhcp-webmin-ssh {
>	hardware ethernet 00:10:5a:07:09:c2;
>	fixed-address 10.0.0.0.123;
> }
>host level-3-printer {
>	hardware ethernet 08:00:37:72:42:00;
>	fixed-address 10.0.0.0.144;
> }
>host netopia-gateway {
>	hardware ethernet 00:0f:cc:17:9f:54;
>	fixed-address 10.0.0.0.254;
> }
>
>#
># List an unused interface here
>#
>#subnet 192.168.2.0 netmask 255.255.255.0 {
>#}
>
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