For the bundling of DSL connections, the DSL ports to be used are entered into the lists of DSL broadband remote sites. Only the number of DSL ports is entered, separated by commas if multiple ports are used (1,2,4) or as a range (1-4).
Two further cases have to be distinguished with regard to DSL channel bundling. These depend on the access type used on the DSL connection. In Germany, most access types use PPPoE. Other countries like Austria and France have access types based on PPTP instead.
- Bundling with PPPoEAll that is required for PPPoE bundling is to activate bundling in the relevant layer and to use the port list to assign the relevant ports.
- Bundling with PPTPWhen bundling PPTP connections, the DSL modems usually have a fixed, often non-editable IP address (e.g. 10.0.0.138) and may also require that the router also has a fixed IP address (e.g. 10.0.0.140). In cases such as this, channel bundling is implemented via load balancing. For this purpose, multiple separate DSL connections are set up on different ports. All of these connections are given the same entries in the IP parameter list. Bundling takes place if additional remote sites are defined in the load balancing list for the physical connection to the PPTP remote site. The PPTP then requests the next physical connection from the load balancer and establishes it there. This corresponds to indirect bundling for LAN-LAN links (Indirect bundling for LAN-LAN links via PPTP).