http://blog.butchevans.com WISP Tutorials by Butch Evans Tue, 30 Dec 2008 20:27:56 +0000 http://wordpress.org/?v=2.7 en hourly 1 http://blog.butchevans.com/2008/12/spam-trojan-detection-with-mikrotik-routeros/ http://blog.butchevans.com/2008/12/spam-trojan-detection-with-mikrotik-routeros/#comments Sun, 14 Dec 2008 23:45:36 +0000 Butch Evans http://blog.butchevans.com/?p=108 One major issue facing ISPs today is the difficulty in obtaining sufficient IP space for every customer.  For many, it’s a matter of cost and for some it is simply a choice to NAT their customers behind their router/firewall.  For the most part, NAT behaves much better today than in days gone by, but there [...]]]> http://blog.butchevans.com/2008/12/spam-trojan-detection-with-mikrotik-routeros/feed/ http://blog.butchevans.com/2008/12/using-the-layer-7-filters-instant-messaging-example/ http://blog.butchevans.com/2008/12/using-the-layer-7-filters-instant-messaging-example/#comments Sun, 14 Dec 2008 08:00:12 +0000 Butch Evans http://blog.butchevans.com/?p=100 In this article, I will describe one functional use for the layer-7  filters that MikroTik offers.  This feature can be very useful if used with caution.  The main problem with L7 filters is that they require much more processor time than many of the firewall functions.  I am not saying this just to “scare” you [...]]]> http://blog.butchevans.com/2008/12/using-the-layer-7-filters-instant-messaging-example/feed/ http://blog.butchevans.com/2008/10/using-ospf-to-create-full-duplex-behaviour-for-wireless-links/ http://blog.butchevans.com/2008/10/using-ospf-to-create-full-duplex-behaviour-for-wireless-links/#comments Thu, 23 Oct 2008 17:28:36 +0000 Butch Evans http://blog.butchevans.com/?p=93 One reality that all WISPs face is that all radio communications are half-duplex.  When one end of a link is “speaking”, the other end must be “listening”.  For many applications, this is sufficient for our purpose.  When a link becomes busy, however, some types of communications are negatively impacted by the delays caused by this [...]]]> http://blog.butchevans.com/2008/10/using-ospf-to-create-full-duplex-behaviour-for-wireless-links/feed/ http://blog.butchevans.com/2008/10/training-classes-scheduled-online/ http://blog.butchevans.com/2008/10/training-classes-scheduled-online/#comments Fri, 17 Oct 2008 21:06:08 +0000 Butch Evans http://blog.butchevans.com/?p=90 I recently announced 2 new training courses that I will be offering online.  Details can be found at the registration pages linked below.  You can view ALL currently available courses HERE The first course is a WISP Basics course.  This course is a discussion of IP basics and an RF Primer.  The IP Basics portion is [...]]]> http://blog.butchevans.com/2008/10/training-classes-scheduled-online/feed/ http://blog.butchevans.com/2008/09/what-opportunities-does-mobile-ip-offer-wisps/ http://blog.butchevans.com/2008/09/what-opportunities-does-mobile-ip-offer-wisps/#comments Tue, 23 Sep 2008 20:11:53 +0000 Butch Evans http://blog.butchevans.com/?p=75 In my recent article regarding the implementation of a MIP solution with Mikrotik RouterOS clients, I described some of the issues surrounding the a MIP solution as well as some of the solutions.  This article generated quite a bit of response and I wanted to take the time to now offer some business ideas for [...]]]> http://blog.butchevans.com/2008/09/what-opportunities-does-mobile-ip-offer-wisps/feed/ http://blog.butchevans.com/2008/09/mobile-ip-some-thoughts-on-how-to-make-it-happen-with-mikrotik-routeros/ http://blog.butchevans.com/2008/09/mobile-ip-some-thoughts-on-how-to-make-it-happen-with-mikrotik-routeros/#comments Thu, 18 Sep 2008 21:12:43 +0000 Butch Evans http://blog.butchevans.com/?p=64 It seems to be “all the rage”.  Mobile IP.  In reality, mobile IP, describes the ability for a user to move across a network without having to renumber his devices.  This definition holds true even if a user moves from one network to another.  In other words, a user is able to keep his IP [...]]]> http://blog.butchevans.com/2008/09/mobile-ip-some-thoughts-on-how-to-make-it-happen-with-mikrotik-routeros/feed/ http://blog.butchevans.com/2008/09/mikrotik_routeros_transparent_bridge_pptp_eoip/ http://blog.butchevans.com/2008/09/mikrotik_routeros_transparent_bridge_pptp_eoip/#comments Mon, 15 Sep 2008 04:07:31 +0000 Butch Evans http://blog.butchevans.com/?p=56 In this article, I want to describe how to tunnel EoIP over a PPtP connection.  EoIP is a Mikrotik specific method of bridging ethernet traffic over a routed network.  The problem with using EoIP as a “VPN”, is that it is not encrypted.  The network we will build in this article will tunnel the EoIP [...]]]> http://blog.butchevans.com/2008/09/mikrotik_routeros_transparent_bridge_pptp_eoip/feed/ http://blog.butchevans.com/2008/09/mikrotik-policy-routing-implementation-example/ http://blog.butchevans.com/2008/09/mikrotik-policy-routing-implementation-example/#comments Fri, 12 Sep 2008 15:37:04 +0000 Butch Evans http://blog.butchevans.com/?p=50 In “normal” routing, you have a set of routes that tell the router about how to reach certain networks.  Policy routing is a way to do the same thing, but have different “paths” or routes for various types of traffic.  In this article, we will explore the requirements for setting up policy routing and explain [...]]]> http://blog.butchevans.com/2008/09/mikrotik-policy-routing-implementation-example/feed/ http://blog.butchevans.com/2008/09/mikrotik-routeros-automated-backup/ http://blog.butchevans.com/2008/09/mikrotik-routeros-automated-backup/#comments Thu, 11 Sep 2008 20:16:49 +0000 Butch Evans http://blog.butchevans.com/?p=45 This article is just a script that you can cut and paste (with small changes) to your router. It will set up the necessary stuff to automate backups.  The script is commented well and the parts that you need to customize are highlighted, so that you know what has to be adjusted.  This is [...]]]> http://blog.butchevans.com/2008/09/mikrotik-routeros-automated-backup/feed/ http://blog.butchevans.com/2008/09/mikrotik-router-audio-alignment-script/ http://blog.butchevans.com/2008/09/mikrotik-router-audio-alignment-script/#comments Thu, 11 Sep 2008 19:34:20 +0000 Butch Evans http://blog.butchevans.com/?p=40 This helpful script was given to me.  It was sent to me by WISP-Router (http://www.wisp-router.com/).  Casey told me it was sent to them by one of their customers.  It will create a beep that changes frequency as the alignment gets better/worse.  Requires (of course) a MT router with a speaker onboard. :local beep “10ms”; :local no “2400ms”; :local [...]]]> http://blog.butchevans.com/2008/09/mikrotik-router-audio-alignment-script/feed/