About Me

ISP & Network guru with 15 years experience in the ISP field.

 

December 2009
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Cisco Tip - IPIP Tunnel

Sample Configuration for an IPIP tunnel. The IP addressed have been changed to protect the innocent.

interface Tunnel0
ip address 10.10.10.5 255.255.255.252
no ip directed-broadcast
tunnel source 192.168.253.21
tunnel destination 111.111.2.3
tunnel mode ipip
!
ip route 111.111.2.3 255.255.255.255 Serial0

Starting A Wisp - Antenna Polarization

WISPs have two major antenna polarizations to deal with. You have Horizontal & Vertical.  As with anything you have bonuses and drawback of each.  Some WISPs use Circular polarization but I would recommend against it.  Your choices on circular polarization are much more limited.

Vertical Polarization (V-POL) is the most common out there.  Home routers and [...]

Wireless N Certification

Small Net Builder notes that The Wi-Fi Alliance has started certifying single-stream access points and routers that use 802.11n technology. The 802.11n specification delivers speeds in excess of 100 Mbps primarily because it uses multiple radios on multiple channels. The protocol was also enhanced for better speed, but any radio using only a single radio [...]

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Starting a Wisp-Antenna Selection

If you don’t come away with anything else in this article remember this. Omnis are bad.

You have 3 major type of antennas you will deal with.

The first is the Omni directional.  This receives and transmits a full 360 degrees. In otherwords a single antenna can cover a full 360 degree radius. An Omni is not [...]

Install Photo of the Day

Basking in the sun

Install photo of the day

Mikrotik 4.4 Released

Noteable from the changelog:

*) snmp – fixed snmp version three;
*) snmp – fixed vlan interface speed;
*) hotspot – fixed radius variables in hotspot html pages;
*) removed support for xen;
*) routing – added support for BFD protocol;
*) fixed problem – MetaROUTER sometimes froze on RB4xx;
*) fixed OSPFv3 on bridge interfaces;

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