PPPoE Crashing -HELP!!!!

RouterOS General
1

I’m using version 2.9.24; When I try logging in through a wireless CPE I start getting about 50 log lines per second saying:
pppoe error PPPoE connection rejected - limit of maximum connections exceeded. This continues to happen even if I turn the CPE off. The only way I’ve found to stop this is to reboot the MikroTik. My physical config looks something like this:

CPE----| 
       | 
Tranzeo TR6500 AP 
           |  
           |            Ether2---4Mb aDSL link--------Ether1 
  MT1  Ether1            |                                | 
    (Bridge)-Bonded interface                    MT2 Bonded interface--Bridge 
                         |                                |          Ether 3 
                        Ether3---AirStream PtP Link----Ether2              | 
                                                                           | 
                                                                           | 
                                      MT3 (PPPoE Server)--------------Network Switch 
                                              | 
                                              | 
                                          internet
2

what exactly is crashing there? sounds like a normal situation of many users trying to log in when simultaneous connection limit is reached. may be some kind of attack also

3

One connection per host is more than likely enabled and the AP is doing MAC Translation… Sounds rather familiar…

4

The AP is set to bridge mode and I’m pretty sure it’s not doing MAC translation. And I know that it definetly is not an attack. The log starts filling up at the exact moment I click the “connect” button on the PPPoE Client config on the CPE.

If the AP is doing MAC translation, this should still not be happening because the CPE in question is the only one connected to the AP at the time this happens. Even if it was translating MACs this would still be the first connection the PPPoE server sees.