Home
Main website
Display Sidebar
Hide Ads
Recent Changes
View Source:
NAT
Edit
PageHistory
Diff
Info
LikePages
You are viewing an old revision of this page.
View the current version
.
An [Acronym] for __N__etwork __A__ddress __T__ranslation. [NAT] is an evil scheme to change [IP]s as they travel through a gateway. A common special case is "Masquerading", where multiple machines appear to have the gateway's [IP] address, which is necessary if you have multiple machines trying to communicate with remote hosts on the InterNet but the [ISP] only gave you one [IP] address. If you are trapped behind NAT and require a realworld IP, consider using [Teredo] to get yourself a realworld IPv6 address. See RFC:1631, [NAPT], [Teredo], [STUN]. There are multiple types of NAT (from RFC:3489) !!!Full cone When a packet is sent out of the NAT device and the NAT device uses port say 1234 then any packet arriving at the NAT device for port 1234 will be sent back through to the host inside. !!!Restricted Cone This is like Full cone, except that the internal host must have spoken to the remote host at some point in the past. !!!Port Restricted Cone This is like Restricted Core but they must have spoken to the same IP:Port before. !!!Symmetric [NAT] The worst kind of NAT. This creates a seperate port for every remote host:port pair, and thus doesn't work with [Teredo] or [STUN].
28 pages link to
NAT
:
SIP
UniversalPlugAndPlay
FirewallNotes
NetworkAddressTranslation
MeetingTopics.2005-03-28
LinuxRouterBox
PortForwarding
NatTraversal
SMTPBestPractices
Teredo
PinHoling
ASUS6000
PPTP
MeetingTopics.2004-07-26
NetworkingNotes
SSHNotes
NAPT
CommitteeMeetingTopics.2004-07-21
6to4
MetaNet
IAX
KLIPS
FailoverInternetConnection
IPIPNotes
IDENT
PeerToPeer
DSL-302G
SpeedTouch510