PPPOE Client with Dual DSL Connections

Dear Board Members,
We are using Microtik router to connnecto to the service provider by configuring it as a PPPOE Client. As we know that at service provider end, for PPPOE their is no gateway IP address exist.So can you people tell me where to point two static IP addresss in this type of scenario ??

  1. Their is an option in PPPOE client configuration in which their is a check on “ADD Default Route”, please somebody explains me what it is for. Is it automatically adding a default route and if yes then what source network or interface it is using.

  2. As we are having two DSL connections to provide redundancy, if “ADD Default Route” is automatically binding the PPPOE interface then which one of the DSL connection, the router will consider as primary ???

I am attaching a network diagram to make my queries a bit more clear for you.

Hope to get some positive replies

  1. For PPPoE interfaces you can simply use the interface name as a default gateway rather than specifying an IP address.
  2. That option sets a default route (0.0.0.0/0) via the interface name.
  3. The first one to come online

Dear Fewi,
Thanks for your reply.

  1. Their is no option of assigning an interface as default gateway in microtik. I am attaching another image kindly check it. Gateway Section asks for IP address. Can we type the exit interface instead of IP address in the default gate way section of this image??

I don’t use Winbox - on the CLI I can simply specify ‘interface=’. Loading Winbox on 5.6 the dropdown box even shows the interface names. If it doesn’t do that for you consider upgrading. Of course all that applies only to adding new routes - you cannot edit existing, dynamic routes.

Dear Fewi,
Yes the Drop down box shows nothing. Does it means we need to upgrade the IOS image or upgrade the router plus IOS ???

I’m not sure what you mean by IOS.

http://wiki.mikrotik.com/wiki/Manual:Upgrading_RouterOS

Sorry I was talking in Cisco Language :slight_smile: . DO we need to just upgrade the Operating system on existing hardware or we need to upgrade both operating system and hardware ?? I think this time I am a bit more clear!

You need to upgrade the operating system to the latest version. Instructions for that can be found in the link I posted in my last post. Though looking at your screenshot again - something I should have done before - you’re on 5.5.

Try using the CLI to install the route, maybe? But Winbox on 5.6 on a 750G does show me all the available interfaces in the drop down.

Well, I am not a Linux guy so can you please tell me the exact command which I can execute from CLI. Following is the route

destination network 192.168.6.2 /32 (to match the IP exactly we use /32) and the out going interface is ethernet 4.
In cisco we write the above as:

ip route 192.168.6.2 255.255.255.255 ethernet 4

Thank you.

RouterOS is Linux based, but doesn’t really have anything to do with Linux CLI syntax. CLI syntax follows the Winbox GUI exactly. In the GUI you’d fill out the destination address field, and the gateway field. The CLI syntax, as per the manual (http://wiki.mikrotik.com/wiki/Manual:IP/Route) is:

/ip route
add dst-address=192.168.6.2/32 gateway=ethernet4

I’ll gladly help you out here, but if you’re comfortable with IOS on the command line then you’ll find using RouterOS on the CLI very easy - but you’ll have to read the manual.

Going by your screenshots, by the way, it seems more likely that the interface you want to refer to is called ‘PPPoE-DSL1’ or something similar rather than ‘ethernet4’.

The DSL Connection is Connected on Ethernet 4 on the Router(Checkout my first post for physical netwrk connectivity). I have created an interface called PPPOe-DSL 1 and under interfaces tab, bound it to Ethernet 4. Attaching another image for your understanding of scenario. :slight_smile:
In Cisco World, We use physical interfaces on routers as exiting interface thats why I typed Ethernet 4.

Thank you :slight_smile:

Just for clarification, I’m very familiar with Cisco. You need to specify the PPPoE interface for the route, just like on IOS there’s a difference between the dialer interface and the ATM interface that refers to the dialer. The ATM interface is the physical interface (here it’s ethernet4), the dialer interface is what you’d point the route out of (here it’s the PPPoE-DSL1 interface).

Exactly. Yes you are right!

Thank you very much :slight_smile:

ACtually, we need to implement this senario country wide on more then 800 branches and at the moment,we are using this router for testing purposes to see if it works perfectly or not. We are also using ospf, ipsec ,gre tunnels all these sort of stuff.