[Coco] OT: Networking problem

[camillus Blockx]

HI,

I agree with aaron wolf about the netmask. But you have to make sure that
the dsl isp is granting you more then 1 ip address. If not then the first
device connecting to the dsl will have a ip address the other will have
none. And because you go to the router (1) and another device with static
ip ( 2 ) you need 2 unique ip addresses.

greets cb



On Mon, Nov 26, 2012 at 5:59 PM, Aaron Banerjee <spam_proof at verizon.net>wrote:

> This is a little off-topic, but is something people here probably have
> more experience with than I do.
>
> I'm trying to "partition" off my network into multiple networks (e.g. for
> experimental purposes/parental control/etc).  I have a DSL modem and a
> router.  I thought the following configuration would work, but it doesn't.
>
>
>                       ----
>                       |   | <-------------------------->  {other device
> with static 192.168.1.n IP}
> {internet}  <-------> |   |   "1.2.168.1.x" network
>                       |   |    static IPs                ----
>                       |   | <--------------------------> | R |
>  "192.168.0.y" network (using DCHP from router)
>                       ----                               | O |
>                    DSL Modem                             | U |
> <------------> device 1
>                   192.168.1.1                            | T |
> <------------> device 2
>                                                          | E |
> <------------> device 3
>                                                          | R |
>                                                          ----
>                                             192.168.1.101 / 192.168.0.1
>                                                    netmask 255.255.0.0
>
> Sorry about the '80s era graphics, but I didn't want to have to attach a
> file -- and besides, I'm from the '80s era (at least when it comes to
> computers).
>
> 1.  I'd like to have the device 1,2,3 be able to "ping" or summarily see
> the modem.  I think this should work, but it doesn't.  What did I do wrong
> (or not do right)?
>
> The router's address to its clients is 192.168.0.1.  It is statically set
> to 192.168.1.101 for purposes of the modem (which doesn't use DCHP).  The
> router then uses its own DCHP to doll out addresses to its client as it
> sees fit (in particular it starts with .100).
>
> For experimental purposes, I took down the firewall completely in order to
> eliminate that as a source of the problem.  I'm getting a "no route to
> host" when I ping 192.168.1.1 from the devices on the "0" net (e.g. device
> 1, 2, or 3).  I don't have "ping" blocked at the modem or router just for
> good measure, and don't think I'm masking out the "1".  Even a few
> desperado attempts using DMZs didn't work, and eventually messed up my
> network until I could undo all that I had done.
>
> I'm obviously missing something very simple and elementary and will
> probably kick myself when someone points it out to me.  I just haven't done
> this type of thing in a long while.
>
> Thanks in advance for your help.
>
> - Aaron
>
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