Address Request Policy

Address Request Policy

IP Address Request Policy (June 2002)

Careful management of IP address space is essential to the stability and growth of the Internet. Due to the explosive growth of the Internet and the limited number of addresses, Internet address blocks are becoming a scarce resource and increasingly controlled. The Internet community is concerned about exhausting globally unique address space, and ensuring that routing overhead does not grow beyond the capabilities of Service Providers. A policy and process recommendation defined in RFC 2050 (http://www.ietf.org/rfc/rfc2050.txt) is widely followed by Internet service providers and end-users.

Where TELUS Gets Its IP Address Block

The Internet address space TELUS has for its customers are allocated from ARIN (American Registry of Internet Numbers). ARIN is a non-profit organization established for the purpose of administration and registration of Internet Protocol (IP) numbers for the geographical areas of North America, South America, the Caribbean and sub-Saharan Africa. TELUS receives IP address blocks from ARIN and then subnets and assigns them to its customers.

ARIN requires that TELUS' customers optimize the use of addresses. Subsequent address requests to ARIN will require TELUS to demonstrate that their customers are efficiently utilizing previous address requests. TELUS is heavily scrutinized by ARIN for the efficient use of address space. As a result, TELUS must also apply this level of scrutiny to our customers.

IP Address Assignment

There are two main types of Internet addresses:

  • Private (RFC 1918)
  • Registered

Private Addresses

TELUS encourages the use of private (RFC 1918) addresses for PCs and workstations behind a firewall or proxy server. If a Business Internet customer does not have a firewall or proxy server, TELUS may provide network address translation (NAT) in our router or customer interface unit.

Registered IP Addresses

Registered IP addresses will be provided to customers for the following devices:

  • Firewalls
  • Proxy servers
  • Mail servers
  • Web servers
  • DNS servers
  • VPN servers
  • Access servers

Please note that the address space you receive from TELUS is not transferable and can only be routed by TELUS.  This is necessary firstly, to support ARIN guidelines and goals of managing router table growth, route flapping, and IP address preservation.  Secondly, this is required due to the aggregation and routing policies of other providers.  Note also that non-portable addresses from other providers cannot be transferred to TELUS.

If You Have a Portable IP Block

If you applied for the IP block from InterNIC (ancestor of ARIN) before 1997 or a large block (/20 or smaller) from ARIN, you do not need to apply for a block from TELUS.

To verify if the addresses are properly allocated, go to http://www.arin.net/whois, and enter the IP address to submit a query. If it shows your company name as the owner, (i.e., not just the user of this block) and the mask is /24 or smaller (i.e. /23, /22, etc.), we can advertise your block to the Internet via TELUS. If your mask is /25 or greater, we cannot advertise your block.

IP Address blocks assigned to your current Internet Service Provider (ISP) cannot be advertised by TELUS. Please see rfc 2050 (http://www.ietf.org/rfc/rfc2050.txt) for details.

Application for IP Address Block(s) from ARIN

Any requests for a /18 or smaller CIDR block should be sent to ARIN. TELUS is not able to grant the requests as per the ARIN IP Allocation Guidelines for Internet Service Providers (http://www.arin.net).

Large ISP companies are strongly encouraged to obtain the IP address block directly from ARIN. It should be noted that /20 is the minimum ARIN requirement to grant any Internet address space.

TELUS Design Services

There are many ways in which optimization can be done, and TELUS can assist you in understanding these:

  • Where and how to use non-registered (RFC 1918) IP addresses
  • How to configure WAN links for TCP/IP networking
  • How to use sub-netting to optimize the utilization of IP networks
  • Use of network address translation (NAT), proxy servers and firewalls in order to conserve addresses and provide security
  • Use of DHCP protocol and products to save IP addresses and simplify address administration

IP Address Request Form

IP address requests to TELUS will require completion of the Address Block Request Form. During initial implementation of your Internet service, TELUS will assist you in filling out the form and documenting your internal design. For future address block requests you will be asked to update the same form and reference your initial design or any revised designs.

From the request form, TELUS will verify the address request and assign IP addresses.  TELUS reserves the right to assign sub-networks rather than full Class C addresses. As well, TELUS will perform periodic checks to verify usage of allocated address space.  If assigned address space is not deemed to be at least 60% utilized, TELUS reserves the right to recover address blocks and reallocate a smaller address block.

Procedure for Requesting Additional Address Space

TELUS will confirm receipt of your request and supply IP address information within a week in most cases.

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