Fwd: I admit I am rookie to IP routing. Looking for a little bet of simple help configuring BIRD for simple routing.

Myron myron at co-hop.uk
Thu Apr 29 14:29:53 CEST 2021


You're right Hans..  I did mean 192.168.0.0/24, 192.168.30.0/24 and
192.168.31.0/24.
Also forgot that DHCP does not get sent through a gateway.

What I'm after is for each internal network to be able to talk and receive
from the others.

So, if I have a printer on 192.168.0.20, for that printer to be accessible
from the 192.168.30.0/24 and 192.168.31.0/24.
Also if there is some device on 192.168.31.0/24 that it can talk to a
device on 192.168.0.0/24.
etc....

If it's any other network then the packets get routed to 192.168.0.1 to be
routed to the Internet.

The Internet Provider supplied router does not allow for static routing
tables to be setup.

On Thu, 29 Apr 2021 at 11:08, Hans van Kranenburg <hans at knorrie.org> wrote:

> Hi,
>
> On 4/27/21 12:04 AM, Myron wrote:
> > I am trying to learn how to set-up a router and maintain a configuration
> > and I'm hoping someone can help me.  I'm that sort of person who learns
> > by example.
> > The configuration is a bit nn standard and will be only used on a local
> > area network.
> > Essentially, how would I configure BIRD to route everything except DHCP
> > traffic between networks 192.168.0.0/16 <http://192.168.0.0/16>,
> > 192.168.30.0/16 <http://192.168.30.0/16>, 192.168.31.0/16
> > <http://192.168.31.0/16> and packets for any other network get sent to
> > 192.168.0.1?
> > So, as an example, a device on 192.168.31.4 can talk to 192.168.0.33?
>
> Can you make a drawing to show what the network will look like? What is
> connected to what? Where does the router live? What are the traffic
> flows you want?
>
> What is the story about DHCP traffic? Why is is special?
>
> > All using a subnet mask of 255.255.255.0.
>
> Ok, so I think you meant 192.168.0.0/24, 192.168.30.0/24 and
> 192.168.31.0/24 in that case? All with 24 instead of 16. Because
> 192.168.0.0/16 contains everything under 192.168...
>
> > I will try and read through the user guide, but at this moment I'm not
> > sure what I need to do to get it to work.
>
> Without knowing a bit more in detail what your goal is, you might get
> answers that are the correct answer for a question that you're not
> asking. :)
>
> Hans
>
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