Talk:IP Address

From JumbaWiki

Merge discussion

I think Dynamic IP, Static IP, and Dedicated IP are all essentially definition articles which all could be part of the same thing (unless other information can be added). I also think some of the information on IP Address is also a little useless for the scope of this wiki. Aussiepete 21:00, 28 May 2007 (EST)

I agree. Aren't Dedicated IP and Static IP the same thing? The IP versions section could be just a link to that info (on wikipedia?) --Twz 21:19, 28 May 2007 (EST)

I also agree, basic info merged into the IP Address Page, and adv stuff like IPv4 IPv6 can be just linked to wikipedia. Leginag, 13:37, 12 June 2007 (EST)

More information

There's a recent forum thread by Cheyne where he mentions "up to 4 dedicated IPs are allowed" - we should include this info --Twz 20:47, 28 May 2007 (EST)

found the thread: http://forums.jumba.com.au/showthread.php?t=4132 he's talking about JDSL --Twz 21:34, 28 May 2007 (EST)

MERGE COMPLETE June 2007

I'm not entirely sure about the differentiation between Static and Dedicated. As part of the merge I have removed this information (someone may want to reinstate some of it):

• Users with a dynamic IP may have trouble running their own email server as in recent years services such as mail-abuse.org [1] have collected lists of dynamic IP ranges and blocked them.
• Dynamic IP address allocation requires a server to listen for requests and then assign an address. Addresses can be assigned at random or based on a predetermined policy.
• It is common to use dynamic allocation for private networks. Since private networks rarely have an address shortage, it is possible to assign the same address to the same computer on each request or to define an extended lease time. These two methods simulate static IP address assignment.
• The static address can be configured directly on the device or as part of a central DHCP configuration which associates the device's MAC address with a static address.
• An IP address can appear to be shared by multiple client devices either because they are part of a shared hosting web server environment or because a proxy server (e.g. an ISP or anonymizer service) acts as an intermediary agent on behalf of its customers, in which case the real originating IP addresses might be hidden from the server receiving a request. The analogy to telephone systems would be the use of predial numbers (proxy) and extensions (shared).

• ==Domain names==

For more information, see main article: Domain Name System

• • A network lookup service, the Domain Name System (DNS), provides the ability to map domain names to a specific IP address. The purpose of domains is that humans are better at remembering names than arbitrary strings of numbers. It also allows an entity to change its IP addresses or reassign them without having to notify anyone except their DNS server.
  • Another reason for DNS is to allow, for example, a web site to be hosted on multiple servers (each with its own IP address) which allows for rudimentary load balancing.
  • For example, wiki.jumba.com.au resolves to 202.124.243.34 (this IP points to the Bob server).

• ==IP versions==
  • The Internet Protocol has two primary versions in use. Each version has its own defintion of an IP address. Because of its prevalence, "IP address" typically refers to those defined by IPv4.
  • === IP version 4 === IPv4 uses 32-bit (4 byte) addresses, which limits the address space to 4,294,967,296 possible unique addresses. However, many are reserved for special purposes, such as private networks (~18 million addresses) or multicast addresses (~1 million addresses). This reduces the number of addresses that can be allocated as public Internet addresses, and as the number of addresses available is consumed, an IPv4 address shortage appears to be inevitable in the long run. This limitation has helped stimulate the push towards IPv6, which is currently in the early stages of deployment and is currently the only contender to replace IPv4.

--Twz 22:02, 13 June 2007 (EST)