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MLPPP Guide on Linux

guys any comments or addicts please feel free to add

also any corrections

reply to Angelo
Thanks for this guide Angelo. Would be nice to purchase a Soekris box, and perhaps try mlppp on that at some point in the future.

np, if you got anything we can add for people i wouldn't mind

bump version 1.1 coming very soon

reply to Angelo
Can this be used to create MLPPP connections on a single link as well?

yes

reply to Angelo
To get single link MLPPP working under debian, get regular PPPoE working. You can use the following guide:
»wiki.debian.org/PPPoE

Use the instructions for the kernel space driver.

Once that's working, add the following to your configuration:
mp
mtu 1442

The instructions for Ubuntu should be the same.

reply to Angelo
thanks ricer going to give this a shot right now, what's even more fun is i came by your post doing a search on how to install mlppp onto ubuntu on google. Neat.

Edit: Is that config going into /etc/network/interfaces ? Apart from that it was looking good but I definitely broke something. No matter, once I fix it I'll give it another go. Basically I use wireless connection to my router to allow me to connect to TSI. But once I set the pppoe connection it stopped connecting to my wireless so on reboot my connection could no longer get the wireless signal as it assumed it was wired...or something.

Okay it appears to be working, I guess I should have tested this with multilink disabled as well, but basically it's a bit sketchy for me on ubuntu. Partially because I'm new to linux so most of my errors I was just saying "sure okay lets move on"

Start by making a backup of /etc/network/interfaces

Following the site DSL_Ricer posted, I apt-get installed pppoeconf. Then I ran pppoeconf saying yes to everything except boot at start up (you may want to say yes to that but for my purposes I have it disabled). Once that runs sudo gedit /etc/ppp/peers/dsl-provider
uncomment the # mtu 14xx and change it to mtu 1442 as DSL said. And add mp here as well.

This should get it working. If you screwed something up like I did load the back up of the file I mentioned above.

ifconfig ppp0 ...if that brings something up you're atleast as far as I am

pon dsl-provider turns the connection on
poff dsl-provider turns it off (except once i turn it off i cant bring it back without rerunning pppoeconf)

I have no way to verify this is working (apart from a torrent that went at full speed at 8:56pm EST). But that I think is good enough confirmation for me.

Edit: After some testing might want to just replace you /etc/network/interface file after the install that seems to do the trick for me and now it works perfectly fine. Guess one of the default options i selected is rewriting that file and breaking it.

I believe you'll just want to add the word "multilink" to your dsl-provider file. Setting the MTU in that file never worked for me. After running ifconfig you can test to see if your MTU is set. I opted for setting MSS in my iptables (Angelo should be adding this info shortly to the documentation), then you'll need to save your iptables. I'm not sure how this is done in Ubuntu but google should provide the answer. Dial up by pon and then you should be all set.

i'll try to add it for v1.3

iptables -t mangle -A INPUT -i ppp0 -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1415: -j TCPMSS --set-mss 1414
iptables -t mangle -A FORWARD -i ppp0 -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1415: -j TCPMSS --set-mss 1414
iptables -t mangle -A OUTPUT -o ppp0 -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1415: -j TCPMSS --set-mss 1414
iptables -t mangle -A FORWARD -o ppp0 -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1415: -j TCPMSS --set-mss 1414
 

reply to Angelo

vista guide will be posted today as well i may release v1.3 witha few changes

bump

reply to Angelo
Just a hint for any other Debian users - I was getting a lot of kernel stack traces when trying to use multilink PPP on a single line. I switched my peer definition from:

plugin rp-pppoe.so eth1
 

pty "/usr/sbin/pppoe -I eth1 -T 80 -m 1452"
 

A word of warning, the user-mode alternative is substantially slower, so don't attempt to use it on very old/slow hardware.

will add this to a updated version in the morning.. =p

reply to the cerberus
Hi cerberus,

I used it; thank you.