[mythtv-users] Slightly off topic: Network connection question
Michael Watson
michael at thewatsonfamily.id.au
Tue Jan 1 21:12:32 UTC 2013
On 2/01/2013 3:25 AM, Joe Henley wrote:
> Larry Finger wrote:
>> On 12/26/2012 05:59 PM, Joe Henley wrote:
>>> Hi,
>>>
>>> Sorry if this is too far off topic....
>>>
>>> I want to pull my MythTV system (server, three clients) off my home
>>> wired
>>> network and onto wired+wifi network. I'm thinking that I rewire from:
>>> cable modem --> router --> server and 3 clients
>>> --> office PCs
>>> to:
>>> cable modem --> switch --> router (both wired and wifi connections)
>>> --> server
>>> and 3 clients
>>> --> router (wired only)
>>> --> office PCs
>>>
>>> I don't know if I can put a switch between the cable modem and the
>>> router (or
>>> two). Thoughts, suggestions?
>>
>> I'm sure you will get lots of suggestions; however, I don't think you
>> can put the switch between the modem and the router. If you use NAT
>> on the router, then you certainly cannot.
>>
>> For testing wireless drivers, I have three wireless routers that are
>> cabled like this:
>>
>> modem --> router 1 --> router 2 --> router 3
>>
>> Router 1 has both wired and wireless clients. Routers 2 and 3 only
>> have wireless clients.
>>
>> The one special thing that I have done is to leave the WAN ports on
>> routers 2 and 3 empty, thus they are treated as switches with a
>> wireless server. On them, DHCP is disabled, and they are given a
>> fixed address in the network 192.168.1.0/24, but outside the range
>> offered by the DHCP server in router 1.
>>
>> Why is it setup this way? The main benefit is that everything
>> connected to this system has an address in the 192.168.1.X range, and
>> every device can be accessed no matter which router is used for the
>> connection.
>>
>> In your case, the latency will be reduced a little by putting the
>> switch between your two routers.
>>
>> Larry
> Larry,
>
> Thanks for your reply!
> What I'm trying to accomplish with my suggested layout is to split my
> network into two pieces, but both sharing the cable modem connection
> to my ISP. The first piece is the wired piece which has all the
> office devices on it (desktops, NAS, printer, etc.) This would be
> highly secured; primarily via the firewall in the (wired) router. The
> second piece is the wireless piece which has MythTV, dlna TV net
> connections, and wireless connections for Kindle and tablets. This
> would be much less secured (even with a wireless router) since it has
> wireless devices.
>
> What I'm trying to do is probably overkill, but I really don't have
> much faith in the security of wireless routers, dlna on TV, ....
>
> I understand your comments about the modem -> switch -> router not
> working -- and yes, I use NAT on the wired side. The way I understand
> your arrangement is that routers 2 & 3 are acting as managed
> switches. Do I get that right?
> In your set up, how/where do you firewall the devices connected to
> routers 2 & 3 from malicious wireless attacks?
>
> Thanks again.
>
> Joe Henley
Cable Modem --> Wireless Router -> Home Router - Wireless and home
networks are isolated, Home Network has access to wireless network,
Single NAT on Wireless and Double Natting on Home Network.
----------------------------------------------
Cable Modem
|
Router
/ \
Wireless Router Home Router
Full protection using three routers, Wireless / Home Networks fully
isolated, Double NATting both Wireless and Home Networks.
------------------------------------------------
Cable Modem
|
(Openwrt <http://www.openwrt.org> Wireless Router)
/ \
Wireless Network Home Network
Wireless / Home Networks fully isolated, using Single router, single
NATting both Wireless and Home Networks
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