At AppNexus every customer has a private VLAN, or Virtual Local Area Network, in each datacenter where they reserve servers. Your VLAN is a list of sequential IP addresses to be assigned to the instances you launch in the AppNexus environment. Your VLAN can consist of 8, 24, 56, ..., (2^N-8) IP addresses; eight addresses in each range are reserved for networking equipment so it can behave as though it was part of your individual VLAN.
--ip" parameter for the
manage-instance launchcommand. If no specific IP is selected, the next available IP in the range will be automatically assigned. For more information, see manage-instance.
VLANs provide security by segregating each customer's traffic from AppNexus and other customers' traffic and also by regulating traffic from the Internet according to a customer-controlled Access Control List (ACL). You can view your current ACLs in the customer portal at https://portal.appnexus.com/networking.php?index=acl.
If you outgrow a VLAN, AppNexus will assign you a larger one. This can take up to one workday as support staff configures the ACL for the new VLAN. You will then need to migrate instances from the old VLAN to the new one. This can be done without downtime; you will assign each item in your VLAN a second IP address for the duration of the migration. Detailed instructions on VLAN migration will be provided when you make your request to Support.
Note: We assume that customer IP requests are for usable IP addresses; the eight addresses used for network gear have already been accounted for when an IP range is allocated.
Network Architecture Map
How to Set Firewall Rules
Enabled Port Ranges
Direct Connection to 3rd Party Datacenters
VLAN Tagging and Instance Security
manage-vlan CLI tool
As always, please create a ticket at https://portal.appnexus.com/ or contact us at email@example.com if you have any questions or concerns.