PPPOE Client on 2.9.4 ?

RouterOS General
1

Here’s the problem:

Switched the DSL SpeedStream 5200 modem from Router (PPPOE client) to Bridge mode.

Configured a PPPOE client on the MT, but it doesn’t connect.

Packet sniff shows the PADI PPPOE Server Discovery outbound, and a PADO reply from the ISP’s PPPOE server, but the MT just sends another PADI again.

My config is below - I’ve changed the real username, password and service-name.

1 X name=“pppoe-out1” max-mtu=1480 max-mru=1480 interface=To_Internet
user=“username@isp.ca” password=“pass123” profile=default
service-name=“isp.ca” ac-name=“” add-default-route=no
dial-on-demand=no use-peer-dns=yes allow=pap,chap,mschap1,mschap2

I’ve tried the username with and without the ISP’s service name (@ips.ca) - no change

I know it’s not the most current version, but other than this problem it’s proven very stable and I’m not looking forward to an upgrade… anyone have this working ?

2

Nobody ? :frowning:

3

You may want to try it without anything specified for “service-name”; since MT will then attempt to establish a connection with any concentrator (unlike windows).

I don’t know about your modem in particular, but I have seen some ATM DSL modems which create a MTU skew of 16bytes when bridging ethernet to a PVC. In which case, reducing the MTU on your ethernet may help.

You may also want to try limiting the authentication methods to one at a time. Some concentrators (like redbacks with really, really old firmware), will only really work with PAP, even though they appear to accept other methods.

Failing all else, read RFC2516, and dissasemble both the PADI and PADO manually, to see if everything matches up. You will probably want to do this both with the MT, and with a Windows box (especially if the Windows box works, and the MT doesn’t), and compare the PADIs and PADOs side by side.

–Eric