IP addresses are provided to FlexNetworks from the Regional Internet Registries (RIRs) such as ARIN. In turn, FlexNetworks lends those IP addresses to our customers for use while connected to our network. The size of the IP address loan varies and is solely based on the continually demonstrated and documented need of the customer.
The default IPv4 address allocation for all FlexIP dedicated Internet access customers is as follows:
FlexNetworks assigns IPv4 addresses to customers based on IETF RFC7020, RFC6177, ARIN guidelines, and customer-supplied, detailed documented need.
FlexNetworks adheres to ARIN requirements for our allocation policies, and we must maintain documentation that demonstrates efficient IPv4 address utilization. Efficient utilization is shown by collecting information from each customer on how they are implementing the IPv4 addressing resources on their network. ARIN, and FlexNetworks, requires this detail for every assignment and allocation greater than a /29.
As a result, customers are required to provide the same information to FlexNetworks that FlexNetworks provides to ARIN.
Customers requesting IP address allocations greater than the above defaults, must demonstrate efficient usage of IP addresses by filling out an IP Justification (IPJ) form. The IPJ needs to be filled out in its entirety, including the section devoted to the customer’s current IP assignments.
For IPv4 requests of a /27 (32 IPs) or larger, please contact your Account Executive. Requests of this size are handled on a case-by-case basis, and will require extensive documentation, including network engineering plans.
FlexNetworks provides primary and secondary Doman Name Service (DNS) for resolver purposes only. DNS is the basic network service that translates host domain names into corresponding IP addresses, and vice-versa.
FlexNetworks runs the following Cloud DNS servers.
Alternatively, Customers typically use 126.96.36.199, 188.8.131.52, and/or 184.108.40.206. as de facto resolvers.
If requesting Reverse DNS for FlexNetworks IP Address space, these requests cannot be completed until FlexNetworks-provided IP addresses have been provisioned. Customers are advised to email completed Reverse DNS requests or technical questions to firstname.lastname@example.org.
Multi-homed, multi-provider BGP requires that the Customer provide an ARIN-assigned IPv4 allocation of /24 or more in addition to having a public ASN. However, if the Customer already has a /24 or more from the other provider with whom BGP will be run, then FlexNetworks will use that /24 or greater for the customer’s FlexNetworks service.
FlexNetworks does not need to assign its own prefix if the end user already has adequate network resources. Customers do not need multiple /24 or more from each provider in order to participate in multi-vendor BGP sessions.
FlexNetworks will need a Letter of Authority (LOA) from the customer’s other provider permitting FlexNetworks to originate their IPv4 prefix.
FlexNetworks provides a Network Interface Device (NID) for provisioning its services and the delivery of the UNI. FlexNetworks will retain ownership and management responsibility for this NID. As a result, the NID must only be used for delivering FlexNetworks services.
Customers have the following responsibilities related to the installation, support, and maintenance of the FlexIP Internet service: