Howto-Multipath Routing
Multipath Routing
The coupling of two or more internet connections with a Securepoint appliance is also called "Multipath Routing". With mutlipath-routing you are able to get a higher bandwith. Also multipath routing will improve the redundancy of your network, especially if you are using different internet-providers. With multipath-routing the data traffic will be weighted and split to the different internet connections.
At failure of one of the internet connections, the securepoint appliance will switch to an other acitve internet connection. Thereby the usage of the other internet connections increased, but you are able to use all the services furthermore, without any restrictions. If the interrupted internet connection will be restored, the services will be switched back.
Additional to the multipath routing the Securepoint appliance will adopt the "Load Balancing" whereby the load will distributed to the different internet connections.
Source Routing
When using more than one internet connection, the data traffic will be devided to the internet connections.
For certain applications (Mailserver, VPN, ...) it's possible to use the same internet connection any time. In this case you have to assign an unambiguously route to the client. This function is called "Source Routing". The route is dependent to the application.
Checklist for Multipath Routing
If you don't need an elaborate instruduction, you can use this Checklist to set up your multipath routing. This checklist can also be used at troubleshooting.
Szenarien
The binding of the firewall to two internet connections can be happen in different ways.
In this howto, two of the possible methods will be presented. Both scenarios assume, that the internet connection is an ADSL connection. It's possible to use ISDN or VDSL or a mix of these.
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In scenario 2 the Firewall will be connected to a Modem direclty. The secound internet connection will be connected via a router.
Multipath Routing with two direclty connected internet connections
For this configuration the appliance has to be connected directly to the DSL-Modems, so that the internet connections are directly managed by the firewall.
add provider
In order to build a multipath with two DSL connections, you have to add two DSL provider first.
- In the navigation bar you have to move on "Network" and click the entry "Network Configuration" in the drop down menu.
- Change to the tab "DSL provider".
- Click on "add DSL provider".
- Assign a name for the provider.
- In the field "Login" you have to assign your provider-username.
- In the field "Password" you have to assign your provider-password.
Repeat your password in the field "repeat password".
- Deactivate the checkbox "standard route".
- If the provider schedules a forced seperation chose a time.
- Click on "save".
- repeat this process for the secound DSL provider. At this process, pay attention to deactivate the checkbox "standard route".
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add DSL interfaces
For the appliance to establish the connection to the internet provider, you have to set up the two DSL interfaces. Depending on the protocol, that is used by the provider, you have to set up two PPPoE or two PPTP interfaces (or in case only one).
- In the dialog "Networkconfiguration" you have to change to the tab "interfaces"-
- Click on the button "add interface"
The interface wizard will be shown.
- Chose the required interface-type by marking the accordingly radiobutton.
- Click on "continue".
- The DSL interfaces will be direclty assigned to the physical interface.