[kwlug-disc] Cisco Router

[Michael Savage]

Sorry about the subnet info.
The router upstairs is connected to the internet via rogers.
The router downstairs uses the office one as a gateway. Things on the 
other side of the downstairs router is on a subnet.
Does that help?
The open port at present for the sign is on the downstairs router.
Mike
On 15/01/2013 11:05 AM, John Van Ostrand wrote:
> ----- Original Message -----
>> I have to connect a sign to a computer network. A sketch to try and
>> explain what I mean. This is the present layout.
>>
>> Internet
>> |
>> | Church Router (offices) Gateway
>> | | | | | |
>> | PC's Administrator's PC (Controls sign)
>> |My router - Uses gateway to connect to internet only, for computers
>> |on the main floor.
>> | | | |
>> PC's Open (for Sign)
>>
>> Is this possible? Or do I need more equipment etc.
>>
>> I was wondering if I need a switch between the church's router and
>> mine to accommodate the sign.
>>
>> Church Router
>> |
>> Switch
>> | |
>> | My Router
>> | | | |
>> | PC's
>> |
>> Sign
>>
>> Or is there a better way.
> You didn't include subnet information. I wonder if the Church Router is a bridge supplied by the ISP or a full TCP/IP router. I don't like the idea of double NATing traffic for a couple of reasons. It's more overhead than needed and to open up a port for external access, like a sign, it means twice the work and twice the problems.
>
> You also have to be careful of conflicting IP address spaces. Routers tend to use 192.168.x.x and many are 1.0 or 0.0 so the possibility of having overlap is quite high.
>