Extranets are an add-on to an exiting company network, where as a WAN is any network that exceeds 2 kilometres squared (2 KM^2)
Extranet is wan
Internet : the global communication access via web. Extranet : Share the content by groups through cross enterprise boundary.
Nothing
The time difference is thirteen hours...
It all depends on perspective. If you look at it as a IP network, the difference is routers used in WAN. If you take in account DNS and other Internet services, the difference is more dramatic.
== == what is the difference between sdh wan and ethernet wan
The difference between internet and wan is WANs are provided by companies licensed by the government to provide communications to the general public. The largest WAN in use today is the internet, which connects many smaller networks and millions of users from around the world.
GWAN = Gigabit WAN WAN = Wide Area Network LAN = Local Area Network WLAN = Wireless Local Area Network MAN = Metropolitan Area Network
From the user's point of view, accessing a LAN or WAN is the same. If packets need to be forwarded from a LAN via a WAN connection that is taken care of automatically by the router.
"Wan" refers to a herbal formula in pill form. "San" refers to the same herbal formula in powder form.
LAN is internal. IE, your computer, router, modem. WAN is external, such as your computer, a server on the internet, a corporate database. Not to be confused with WLAN, which is wireless LAN
Intranet is a web site only available inside a company building. Extranet is a web site for only coworkers of a company (you have to login) Internet is a generic word for talking about net