LinuxQuestions.org
Did you know LQ has a Linux Hardware Compatibility List?
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices

Reply
 
Search this Thread
Old 04-06-2009, 09:21 AM   #1
xtothat
Member
 
Registered: Sep 2008
Location: Middle of Nowhere, England
Distribution: Slackware 14.1, Ubuntu 13.10
Posts: 39

Rep: Reputation: 15
Cheap modem/router + DMZ + Smoothwall + large scale OpenVPN = OK?


Hi!

I've got a question about, as the thread title suggests, whether a cheap modem/router configured to use a Smoothwall box as a DMZ can alleviate any issues with CPU/RAM usage on the cheap modem.

I'm building a relatively large scale OpenVPN deployment (up to 1000 users at any one time), and obviously a cheap Dynamode modem/router ain't gonna handle that kind of stick. I've got a few options...

My current thinking is to configure the Dynamode router to use the Smoothwall box as a DMZ (ie forward all ports to it). The only thing is, I'm not sure whether this will help with CPU/RAM usage on the modem/router. Any hints would be much appreciated.

My second option is to use some kind of half-bridge mode on the Dynamode to give the Smoothwall box an external IP on it's external interface. I've never used half-bridging before, nor do I have any idea if Smoothwall supports this, or how to go about configuring it.

The third option is to try to get hold of a USB modem/router (e.g. Thomson Speedtouch 330 or D-Link DSL-200) for Smoothwall to use to connect to the ISP itself.

Any help on any of these gaps in my knowledge would be greatly appreciated.

Thanks all in advance!

X-T
 
Old 04-07-2009, 04:21 AM   #2
rossonieri#1
Member
 
Registered: Jun 2007
Posts: 359

Rep: Reputation: 34
hello,

cheap is OK if its as solid as a stone wall

i'm thinking :
how about full bridge mode on the modem - so your link directly connected to your smoothwall? i'm looking at modem's capability to handle both physical link and routing? too heavy for "cheap" modem, not to mention some DoS attacks to the modem (it has very limited resource). so that the smoothwall become the router/firewall - just give it a better machine.

USB modem? i prefer RJ45 hook.

just a thought.
 
Old 04-07-2009, 09:07 AM   #3
xtothat
Member
 
Registered: Sep 2008
Location: Middle of Nowhere, England
Distribution: Slackware 14.1, Ubuntu 13.10
Posts: 39

Original Poster
Rep: Reputation: 15
Hi!

Thanks for your reply. I've been looking at that sort of thing. I don't really understand it though. Do you know of anywhere good to read up on it?

X-T
 
Old 04-09-2009, 09:25 PM   #4
rossonieri#1
Member
 
Registered: Jun 2007
Posts: 359

Rep: Reputation: 34
hi X-T,

its pretty simple actually :

Code:
full bridge mode modem ---- (PPP/PPPoE etc using RJ45)monowall(internal) ---- LAN (subnet1 for servers/DMZ, subnet2 for regular LAN client)
depends on your connection - was it and xDSL or something,
if you rent a cable internet - than you should note that there is a small modem/adapter connected between your computer/router and the coax cable. that is a bridge mode modem - basically it just passed your IP traffic directly to your computer/router while it only does some layer 2 functionalities.

HTH.
 
Old 04-10-2009, 07:53 PM   #5
xtothat
Member
 
Registered: Sep 2008
Location: Middle of Nowhere, England
Distribution: Slackware 14.1, Ubuntu 13.10
Posts: 39

Original Poster
Rep: Reputation: 15
Thanks, I think I understand some of this... If the ISP uses PPPoA, and my modem/router is in full bridge mode, then in Smoothwall, do I use PPPoE, because there's no option for PPPoA unless I use a USB modem?

Thanks for your help so far!!

X-T
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cable Modem + Static IP + Smoothwall Router + Switch = Horrible connection AustinMarton Linux - Networking 1 03-12-2008 04:50 PM
smoothwall dmz bradyc Linux - Newbie 2 11-04-2003 04:00 PM
Smoothwall, DMZ, Webserver, almost there. Grafbak Linux - Networking 3 07-01-2003 01:05 PM
DMZ on Smoothwall sheryco Linux - Networking 8 03-03-2003 11:34 AM
Smoothwall DMZ config AnotherNewbie Linux - Networking 2 06-09-2002 03:29 PM


All times are GMT -5. The time now is 03:32 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration