Latest posts
-
Upgrade Your ASA To 8.3X – Memory Requirement
It seems that as of version 8.3 of the ASA code, you have to have 2GB of RAM in your 5520 and 5540, a meager 1GB is necessary for your 5510. The funny thing is that prior to February, all of these devices shipped with only 512MB of memory…that’s a pretty significant jump, wouldn’t you…
-
Rigging A Mikropoynt For Omni 2.4 and 5.8
I wanted to have my laptop AP directional, hense the mikropoynt, but I also wanted my little omni that is 2.4 and 5.8. So, I drilled a hole in the bottom and mounted the extra antenna. I then hooked the extra antenna to the side B connection on the wireless card. If I want to…
-
Mikropoynt Assembly With No Preparation
I wanted a slim directional enclosure for my laptop bag, so I grabbed one of the Poynting Mikropoynts. These guys weigh in at around $25. They come with concrete studs, a pole clamp and even suction cups! I also like that it has light pipes for the boards LEDs. I made a video of the…
-
TTL (Time To Live) And Fun With Mikrotik TTL Mangle
Wikipedia will be happy to explain. In a nutshell TTL is a field in the IP header that sets how many routers a packet can traverse. If you have a routing loop and TTL didn’t exist, then the packets could indefinately loop. What’s the problem with that? Packets can travel between two routers with virtually…
-
DHCP Filtering On A Dlink Switch
This is particularly for the DGS-3526. This will block rogue DHCP servers. create access_profile ip udp src_port_mask 0xFFFF profile_id 10 config access_profile profile_id 10 add access_id 1 ip udp src_port 67 port 25-28 permit config access_profile profile_id 10 add access_id 2 ip udp src_port 67 port 1-24 deny
-
RS232 to IP Converter – With MacGyvered PoE
I’ve been working on connecting to our Bioscript readers…bio metric entry devices. You can upload thumb templates one way…standing at the device with an RS232 cable…not ideal! What I did was install some RS232 to IP converters. These guys are a little over a eighty bucks each, but they are well worth the money. They…
-
Where Has Greg Been?
I’ve really had my head down lately. I just knocked out my MTCRE and scored better than an 80. What this means is that I’m able to train for this cert. What’s that you say…train? That’s right my peoples…I’ll be training. At the MUM in a few weeks I’ll be taking train the trainers. Once…