Applies To:Show Versions
BIG-IP Link Controller
Overview of IP routing administration in TMOS
As a BIG-IP system administrator, you typically manage routing on the system by configuring these BIG-IP system features.
|BIG-IP system feature||Benefit|
|Route domains||You create route domains to segment traffic associated with different applications and to allow devices to have duplicate IP addresses within the same network.|
|Local IP addresses||Whenever you create virtual addresses and self IP addresses on the BIG-IP system, the system automatically adds routes to the system that pertain to those addresses, as directly-connected routes.|
|Static routes||For destination IP addresses that are not on the directly-connected network, you can explicitly add static routes. You can add both management (administrative) and TMM static routes to the BIG-IP system.|
|Advanced routing modules||You can configure the advanced routing modules--a set of dynamic routing protocols and core daemons--to ensure that the BIG-IP system can learn about routes from other routers and advertise BIG-IP system routes. These advertised routes can include BIG-IP virtual addresses.|
|The ARP cache||You can manage static and dynamic entries in the ARP cache to resolve IP addresses into MAC addresses.|
About BIG-IP system routing tables
The BIG-IP system contains two sets of routing tables:
- The Linux routing tables, for routing administrative traffic through the management interface
- A special TMM routing table, for routing application and administrative traffic through the TMM interfaces
As a BIG-IP administrator, you configure the system so that the BIG-IP system can use these routing tables to route both management and application traffic successfully.
About BIG-IP management routes and TMM routes
The BIG-IP system maintains two kinds of routes:
- Management routes
- Management routes are routes that the BIG-IP system uses to forward traffic through the special management interface. The BIG-IP system stores management routes in the Linux (that is, kernel) routing table.
- TMM routes
- TMM routes are routes that the BIG-IP system uses to forward traffic through the Traffic Management Microkernel (TMM) interfaces instead of through the management interface. The BIG-IP system stores TMM routes in both the TMM and kernel routing tables.
Viewing routes on the BIG-IP system
- Open a console window, or an SSH session using the management port, on the BIG-IP system.
- Use your user credentials to log in to the system.
Perform one of these actions at the command prompt:
- To view all routes on the system, type: tmsh show /net route
- To view all configured static routes on the system, type: tmsh list /net route