Category: Networking
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OSPF Across Ubiquiti Radios
Forum thread is here. My boy JJ turned me on to some issues he’s been having with the UBNT radios. It seems they are pac-manning some of the multicast traffic traversing them. As you all know OSPF communicates using multicast by default. If you set your interfaces to non broadcast multi access(NBMA), then it uses…
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Getting The Network Up NOW…Where’s My Duct Tape?
I’ve got a construction site that that has an omni AP running hotspot and they needed some gear “up” in the MDF ASAP. My wifi had good connectivity in the building until they put up a thousand steel studs and the accompanying materials. I have a wawa(my name for generic Chinese equipment) multi-client bridge hooked…
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Bridging an L2 Segment Across The Internet Using Mikrotik
So what happens when your coworker has a DVR at home that can stream video, but it can stream it only to the local subnet? Well, if like us, you need to watch the world cup, then you get creative. Mikrotik to the rescue! We are going to use Ethernet over IP tunnels to connect…
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Wireless Networking in the Developing World
My boy JJ passed this on to me: WNDW.net. These guys write a multi lingual book on designing and implementing networks for the developing world. What does this really mean? They give you practical application on developing networks on a shoe string budget…which is basically everyone I know in the WISP industry…hehehe. Here’s the download…
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Making Sure Your Fresnel Zone Is Clear – New Wireless Installs
When you are looking at a point to point (P2P) wireless link you will hear people mention “line of sight”. As in, if I stand at one point can I see where the other antenna will be mounted. I once thought “as long as I can see the other antenna, I’m good…right?” Not exactly. There…
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Visio Stencils Mikrotik/Ubiquiti
As you guys have noticed, I use Visio a lot…a LOT. Here are some stencils to make your diagrams oh-so pretty 🙂 Mikrotik Stencils Ubiquiti Stencils Thanks to JJ for the UBNT stencils 😉
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Configuring NTP Client On Callmanager 4.X
CM 4.X doesn’t use the standard windows 2000 NTP client W32Time, it uses XNTP. To configure it, you edit a config file and restart the NTP service on the server. C:\WINNT\system32\drivers\etc\ntp.conf server 207.171.7.152 # Set Local Clock to Authoritive Time Source server 149.20.68.17 # Set Local Clock to Authoritive Time Source fudge 127.127.1.1 stratum 5…