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Manual Chapter: Performing Basic Configuration Tasks
Manual Chapter
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About basic networking configuration terms

This list summarizes some basic networking configuration terms that you should know before you start configuring the BIG-IP system and using Application Security Manager (ASM).

local traffic policy
The way to direct traffic using rules with conditions the traffic must meet, and specifying actions to take (such as where to route the traffic, what security policies or DoS profiles to assign to traffic, and many other actions). ASM automatically creates a local traffic policy when you create a security policy or attach a security policy to a virtual server (manually).
pool
The web server or application server resources that host the web application being protected with a security policy. You can create a local traffic pool, and then assign the pool to a virtual server. On Application Security Manager systems, you can create a pool as part of creating a security policy.
self IP address
An IP address that you associate with a VLAN, to access hosts in that VLAN. You create a self IP address and associate it with a VLAN.
virtual server
The virtual server processes incoming traffic for the web application you are securing. When you create a virtual server manually, you assign the local traffic policy and pool to it. On Application Security Manager systems, you can create a virtual server and pool as part of creating a security policy.
VLAN (virtual local area network)
A logical grouping of network devices. You create a VLAN and associate the physical interfaces on the BIG-IP system with the VLAN. You can use a VLAN to logically group devices that are on different network segments.

Overview: Performing basic networking configuration tasks

For initial installation, the BIG-IP hardware includes a hardware setup guide for your platform that you can refer to for details about how to install the hardware in a rack, connect the cables, and run the setup utility.

Next, you must configure the BIG-IP system on your network before you can run the Application Security Manager (ASM) Deployment wizard to create a security policy. The specific tasks you need to perform depend on your company's networking configuration, and which of the other BIG-IP system features are in use.

For using ASM, the minimum networking configuration tasks that you need to perform are creating a VLAN and a self-IP address for the system. During the process of creating a security policy, the system helps you complete other necessary configuration tasks, such as creating a virtual server and pool. The tasks are included here in case you want to create them first. For complex networking configurations that also use other BIG-IP features, you need to perform additional tasks described in the respective documentation.

Task summary

Creating a VLAN

VLANs represent a collection of hosts that can share network resources, regardless of their physical location on the network. You create a VLAN to associate physical interfaces with that VLAN.
  1. On the Main tab, click Network > VLANs. The VLAN List screen opens.
  2. Click Create. The New VLAN screen opens.
  3. In the Name field, type a unique name for the VLAN.
  4. For the Interfaces setting, click an interface number from the Available list, and use the Move button to add the selected interface to the Untagged list. Repeat this step as necessary.
  5. Click Finished. The screen refreshes, and displays the new VLAN from the list.

Creating a self IP address for a VLAN

Ensure that you have at least one VLAN configured before you create a self IP address.
Self IP addresses enable the BIG-IP system, and other devices on the network, to route application traffic through the associated VLAN.
  1. On the Main tab, click Network > Self IPs. The Self IPs screen opens.
  2. Click Create. The New Self IP screen opens.
  3. In the Name field, type a unique name for the self IP.
  4. In the IP Address field, type an IPv4 or IPv6 address. This IP address should represent the address space of the VLAN that you specify with the VLAN/Tunnel setting.
  5. In the Netmask field, type the network mask for the specified IP address.
  6. From the VLAN/Tunnel list, select the VLAN to associate with this self IP address.
    • On the internal network, select the VLAN that is associated with an internal interface or trunk.
    • On the external network, select the VLAN that is associated with an external interface or trunk.
  7. Use the default values for all remaining settings.
  8. Click Finished. The screen refreshes, and displays the new self IP address.
The BIG-IP system can now send and receive TCP/IP traffic through the specified VLAN.

Creating a local traffic pool for application security

You can use a local traffic pool with Application Security Manager system to forward traffic to the appropriate resources.
Note: You can optionally create a pool as part of creating a security policy using the Deployment wizard.
  1. On the Main tab, click Local Traffic > Pools. The Pool List screen opens.
  2. Click Create. The New Pool screen opens.
  3. In the Name field, type a unique name for the pool.
  4. In the Resources area, for the New Members setting, add to the pool the application servers that host the web application:
    1. Type an IP address in the Address field.
    2. In the Service Port field, type a port number (for example, type 80 for the HTTP service), or select a service name from the list.
    3. Click Add.
  5. Click Finished.
The BIG-IP system configuration now includes a local traffic pool containing the resources that you want to protect using Application Security Manager.

Creating a virtual server

You can create a virtual server on the BIG-IP system, and this is where clients send application requests. The virtual server manages the network resources that host the web application that you are securing. You specify the pool on the virtual server.
Note: You can optionally create a virtual server as part of creating a security policy using the Deployment wizard.
  1. On the Main tab, click Local Traffic > Virtual Servers. The Virtual Server List screen opens.
  2. Click the Create button. The New Virtual Server screen opens.
  3. In the Name field, type a unique name for the virtual server.
  4. For the Destination setting, select Host and in the Address field, type the IP address for the virtual server.
  5. In the Service Port field, type 80, or select HTTP from the list.
  6. From the Configuration list, select Advanced.
  7. From the HTTP Profile list, select http. Note that this step is required.
  8. From the Source Address Translation list, select Auto Map.
  9. From the Default Pool list, select the pool that is configured for application security.
  10. Click Finished.

About additional networking configuration

Depending on your network environment, you may need to configure the following additional networking features on the BIG-IP system before you start creating security policies.

  • DNS
  • SMTP
  • NTP
  • Routes
  • Packet filters
  • Spanning tree
  • Trunks
  • ARP
  • Redundant systems

Several Application Security features require that the DNS server is on the DNS lookup server list (System > Configuration > Device > DNS). For example, integrating vulnerability assessment tools, web scraping mitigation, and external anti-virus protection usually require you to configure DNS servers on the BIG-IP system.

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