Helping people with computers... one answer at a time.
Essentially "Double Natting" is what happens when you place your computer behind a NAT router which is itself, behind another NAT router.
Occasionally it just happens, particularly in corporate environments where you want a small network to be isolated from the corporate network it's on, which in turn is isolated from the internet that it's connected to. While it slows things down just a tad, in practice, most, though not all, things work just fine across a double NAT.
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Article C2314 - March 26, 2005
Leo A. Notenboom has been playing with computers since he
was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed.
After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers
to common computer and technical questions. More about Leo.
Hi Leo. I would like to ask a help from you. I hope you can email me your answer. Here's my problem. I want to share my DSL connection to a friend whose basically away from my home. My DSL is 512KBPS. How can i create a connection in which it's somehow the same with ISP where he can just connect to my MODEM/ROUTER using dial up connection. What softwares should I need or procedures. Please I need your help. Please if possible can you just email me your answers(macware23@gmail.com). Thank you again.
Posted by: Arnel at December 25, 2006 5:36 AMTell me about natting. I know something but i wanna know how to configure it? how to use? n every aspect of it.
Posted by: jatin at June 13, 2007 11:44 PMHi, My problem is i cannot poll the second pix(Cisco 506E) or server through the first pix(Cisco 506E) using SNMP.
Posted by: Derek Scott at March 3, 2009 2:50 AMHi Mr. Leo,Can you please explain NATTING (Meaning and Use)in more detail.
Appreciate your help
Posted by: YUSUF KAMAL at June 1, 2009 10:27 PMThank You
Yusuf
{email removed}
Posted by: MUZZY at March 22, 2011 6:41 PMyou can possibly do waht you are trying to achive 2 ways. either by putting your modem in a bridge mode then by usering a - ppoe connectoidto connect ! - this way your freind would be able to open up a program configured with user name and password and could dial up the conenction .
2 2nd way to do it and this is actaully the - right way to do it is by getting your self a router and a switch cause you could only run 100 meters of cat5 then switch/ repeter then a cat5 again.
so its not really practical to do so