Mapping a domain name to a server behind NAT with Dynamic DNS services

Port forwarding at the NAT router is the key to map any specific domain or subdomain name to a host behind the NAT based internal network of an ISP. This the conclusion I've received from my probe into this matter.... The best internet resource that got me to this info in the most clearer terms is....

info from dydns on NAT based environments

Internet over HAM radio ? Internet access over ham radio network

I was inquisitive if HAM radio can be used to extend internet connectivity for personal use to far of areas where internet is not reachable... Ham radio is an excellent tool to connect to remote areas or to any sort of places around the globle.... With that, can we forward internet access through HAM radio links just for personal use?

I speculated this issue and did a basic research over internet and found that HAM radio can not be used for commerical purposes.... But then this will be for personal use and no commercial selling or anything... I'm infact new to ham radio as well... Will discuss this with several ham radio operators in our area and let's see where we end up.....

If YOU have any info regarding this matter, then pls leave your comments here...

Maximum Transmission Unit values for different network types

Maximum Transmission Unit (MTU) refers to the size (in bytes) of the largest packet that a given layer of a communications protocol can pass onwards. MTU parameters usually appear in association with a communications interface (NIC, serial port, etc.). The mtu may be required by standards (as is the case with Ethernet) or decided at connect time (as is usually the case with point-point serial links.

The smallest MTU between two hosts is known as the path MTU.

High MTU brings higher bandwidth efficiency. However large packets can block up a slow interface for some time, increasing the lag on other packets.

For example a 1500 byte packet, the largest allowed on an Ethernet, will block up a 14.4k modem for about one second.

Common MTU Values
Value - Link type
65535 - PPP max, Hyperchannel
17914 -16 Mbps Token Ring
4464 - 4 Mbps Token Ring
1500 - Ethernet, PPP default
1492 - IEEE 802.3/802.2
1480 - PPPoE
1460 - L2TP
1454 - Optimal PPPoE-over-DSL MTU (see http://www.mynetwatchman.com/kb/adsl/pppoemtu.htm for details)
1372 - PPTP (PPP/GRE/IP) default, Windows XP
576 - X.25, default for many SLIP implementations

Welcome to my wifi blog

Hi everyone, welcome to my wifi blog.

I'll post all my notes on wifi, wimax and networking on this blog.

Do check back soon!

Hi Wifi World!

Hi everyone! This is my new blog on wifi world. Expect good posts from me here soon.