QUOTE(chuahcs79 @ Aug 8 2012, 10:00 PM)
most of the telco block 70% of the port,.. well, still wireless broadband is my only choices because in my area only have streamyx 1Mb plan, LOL, so i end up with maxis,.. of course our device combination set also as important as the line too
Port numbers range from 0 to 65536, but only ports numbers 0 to 1024 are reserved for privileged services and designated as well-known ports. Port above 1024 is not use by common services, most likely will be use within the local lan.
1024/65536 = only 1.5% well-know port which commonly use.
how telco know which one to block from 1025 - 65536 (98.5%) if you say they block 70% of it. If they want to block VPN, that mean only need to block port 500, 4500 and maybe 1701 too. I use port 8280, which is not vpn port anyway.
Telco take an easy step to block all port except most important one like http, https, ftp and etc... but never think that some of their customer will need that...
This post has been edited by nordingh: Aug 8 2012, 10:40 PM