Koozali.org: home of the SME Server

Switch from bridged DSL to PPPoE

Lloyd Keen

Switch from bridged DSL to PPPoE
« on: November 19, 2003, 05:01:34 AM »
I'm just about to change ISP's - currently using bridged DSL but changing to PPPoE. Where do I input the username and password (from the ISP) One source says key it into the DSL modem (SpeedTouch Pro) but the E-smith manual says key it into the server admin panel (under option 3 server and gateway dedicated PPPoE) Or do I enter it in both setups????

marco

Re: Switch from bridged DSL to PPPoE
« Reply #1 on: November 19, 2003, 08:21:02 AM »
Should be in server manager.  The modem does not store the username and password.  Think of this modem just like a 56 k modem.

hope this helps

Lloyd Keen

Re: Switch from bridged DSL to PPPoE
« Reply #2 on: November 19, 2003, 08:57:50 AM »
The instructions for the modem have diagrams how to setup PPPoE with a username and password see http://home.swiftdsl.com.au/~hegars1/Telstra_to_Swiftel_Speed_Touch_Pro_v1.1.pdf (Warning, it's a 1.5MB PDF). Maybe I just leave the modem in bridged mode and enter the info into SME and let eth1 handle the PPPoE

Michael Doerner

Re: Switch from bridged DSL to PPPoE
« Reply #3 on: November 19, 2003, 08:58:16 PM »
Lloyd,

I have never set up an ADSL modem in bridged mode but I would like to have a test with that sort of setup (NZ). I struggled when I tried it once before. Could you give me some help with the settings for that on a Speed Touch Pro?

We usually setup the SME server as a gateway (2 NICS) where the external NIC goes straight into the ADSL modem (some require Xover cable). That way, the whole PPPoE settings are all in the modem only, SME only manages a second NIC but still does it's NAT  (as the modem does as well!)
Regards,
Michael Doerner

Jon Blakely

Re: Switch from bridged DSL to PPPoE
« Reply #4 on: November 20, 2003, 03:28:29 AM »
Michael,

Due to the fact that Telecoms supply ADSL over PPPoA (point to point protocol over ATM) there is no way for bridged mode to work, the ADSL router needs to be in router mode.

Having said that, there is a way by using one of the later adsl routers that has a mode called half-bridge mode (the DSE adsl routers are one example). In half-bridge mode you still put the username/password in the router but NAT is disabled and the external ip address if forwarded to the ethernet port on the server via the DHCP server on the router. You configure the ethernet port on the server as DHCP (send ethernet address as client identifier).

The only disadvantage is that the DHCP server renews its lease every 60 secs  and rapidly fills up the message log with DHCPCD message. However there is also a way around this depending on what version SME you are using.

On 5.6 you modify the /sbin/ifup script to remove the -d (logging option) from DHCPCDARGS. Take the interface down and back up again.

On 6b3 you need to go to /var/services/dhcpcd and modify the line in the run script that says
args="-dCR"  to read
args="-CR"

then do a

/sbin/e-smith/signal-event logrotate

Jon

Michael Doerner

Re: Switch from bridged DSL to PPPoE
« Reply #5 on: November 20, 2003, 08:30:53 AM »
Many Thanks Jon for your detailled help, much appreciated.
We are not using the DSE routers but I will definitely watch out for that feature and want to give this a try.

Thanks again,
Michael

James Shields

Re: Switch from bridged DSL to PPPoE
« Reply #6 on: November 21, 2003, 06:54:19 AM »
Lloyd,

I switched from TPG ADSL (Static IP method) to Swiftel ADSL (PPoE) 21/11/03. Just change settings in server from Static IP to PPoe, put in your new username (xxxx@swiftdsl.com.au) & your password. Reboot & you are done.

Yes, this means my D-Link ADSL modem provided by TPG is still in bridged mode, and I did not have to change any settings on it.

Hope it goes well for you.

James

Lloyd Keen

Re: Switch from bridged DSL to PPPoE
« Reply #7 on: November 21, 2003, 07:45:37 AM »
Thanks James, that's exactly what I was after. My changeover is scheduled for Tuesday.

Lloyd Keen

Re: Switch from bridged DSL to PPPoE
« Reply #8 on: December 01, 2003, 07:49:07 AM »
Michael, can you contact me off list and I will give you instructions to setup the STP in bridged mode.