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Static IP addresses

- Most Internet connections are assigned dynamic Internet Protocol (IP) addresses: each time your connection ismade, a different, temporary IP address is assigned. With static IP addresses, your connection gets the same value everytime you connect to the Internet.

- Static IP addresses permit a machine to offer Internet services like web, ftp and email.Because a specific, known address is associated with your connection, other machines on the Internet know where to send traffic destined for your server.

- For security purposes, many companies are installing firewalls to protect them from malicious attacks.It is common practice to require all offsite legitimate users to have static addresses if they go through the firewall to private sections of the corporate network.

- Using Network Address Translation (NAT), a single static address can serve an entire company. Msen can configure a solutionto deliver web traffic to one server, ftp to a second and email to third. Each desktop workstation would have only generalnetwork access. Shared resources on these machines would not be visible to general Internet users.

- If your company has multiple locations, Msen can design a VPN solution using a single static address at each locationto securely make remote locations appear to be on the same LAN.

Services and Prices

- Any Msen Business Dialup account may add one or more static IP addresses to the account.Business Dialup customers who wish the functionality of a subnet may order multiplestatic IP addresses at the same time and request that they be allocated so that they are contiguous.
Service
  
Setup
  
Monthly
  
 
Single static IP address
$20.00
$10.00
order now

- Customers with dedicated ISDN service or any form of T1 may add one or more routed subnets.
Service
  
Setup
  
Monthly
  
 
8 address subnet (/29)
$25.00
$10.00
order now
16 address subnet (/28)
$25.00
$15.00
32 address subnet (/27)
$25.00
$25.00
64 address subnet (/26)
$25.00
$50.00
128 address subnet (/25)
$25.00
$75.00
256 address subnet (/24)
$25.00
$100.00

Technical Details

- Every machine on the internet is assigned a numeric IP addresses of the form A.B.C.D. This is how computersexchange Internet traffic. A reasonable analogy is the global telephone system: anyone in the world can call you ifthey enter the correct set of digits. On every computer on the Internet, entering www.msen.com gets translatedto 148.59.19.5 which then directs the user to Msen's web page. 148.59.19.5 is unique on theInternet, like a telephone number, it always reaches the same destination.

- With the recent growth of the Internet, and because IP addresses must be unique, InternetService Providers strive to use them efficiently. One way to do this is by using an address poolfor a class of service. An an example, a dialup customer calling a given city will be handed a random address out of sucha pool. While the address will be similar on successive calls, it may not be the same.

- The typical home user needs to be able to browse the Internet but does not need or want to offer services.As long as they have a valid, Internet-reachable IP address each time they connect, they can access web pages,send and receive email and play online games. So a dynamic IP address is just fine.

Last Update:Thursday, 24-Oct-2002 13:29:13 EDT

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