PPPoE and DHCP relay

RouterOS General
1

Hi!

I have a network like the illustration:

Need to create a DHCP server with a unique pool of IP address on the router and use DHCP relay on PPPoE servers to give IP to customers.

Is that possible?

2

This manual page may be useful for you http://wiki.mikrotik.com/wiki/Manual:IP/DHCP_Relay

3

I can imagine … but as?

I find no way to assign a relay to a PPPoE server.

4

You need dynamic addresses assigning via pppoe connection or you need that your users have addresses assigned via dhcp besides pppoe?

5

Thanks for reply.
I need dynamic addresses assigning via pppoe connection.

6

So you need no dhcp-relay. You need to add address-pool, for example:

/ip address pool add name=pool ranges=192.168.1.1-192.168.1.100

Then change default or add new one profile for ppp. Assuming you decided to change default:

/ppp profile set default local-address=192.168.1.254 remote-address=pool

Then remove from user accounts at /ppp secret local and remote addresses and set to them default profile:

/ppp secret; 
unset [find] local-address;
unset [find] remote-address;
set [find] profile=default;

After this your users will get dynamic addresses from the pool you noted. Just adjust it to your needs.

7

Thanks for answering AlexN.
Your idea is good, but not what I need.

What i need, is centrally manage dhcp in main router (the one that is on the top of them all), not individual dhcp servers in each router from bottom.

I know it can be done without pppoe, but I need to do with pppoe and dhcp relay (only a centralized DHCP).

Thank you.

8

In this case using of usermanager at the main router or external RADIUS server can be useful to get your job done.

9

then can’t do so with dhcp relay?

10

Any solution that did you find?
I m designing the pppoe with 3 pppoe but wish get ip dinamic for each one