Note to all people testing on 2.5 and using PPPoE

kraduk

Hi Just a heads up really for anyone who is running the preview release and use pppoe.

I just updated my box as I was about 74 days behind, only for pppoe to completely break. I thought it was the ISP initially, as I was getting no response to my Pad-Is. However it turned out to be this issue. ie you must manually set the MTU now to 1508 rather than leaving the field blank.

I thought I would mention it as it could well have people scratching their heads for quite a while. Luckily I found it quite early on, so thanks to Louis van Breda, for mentioning it.

https://redmine.pfsense.org/issues/10597

stephenw10

The generated mpd conf file appears to be identical to 2.4.5p1.

Are you actually seeing a difference there? Or in ifconfig?

Setting that in the config removes the mpd conf line:
set link mtu 1492

And adds:
set pppoe max-payload 1508

Does your connection require a service name or unique ID?

Steve

louis2

Hello,

I did report earlier on this problem and did even make a critical bug report, because I was afraid others would run into the same problem very soon. That was not appreciated ...

https://forum.netgate.com/topic/154490/todays-14-6-build-broke-pppoe-internet-connection-fatal/8

The problem is not the value of the MTU-field (I have 1500), the problem is that there should be some value in the MTU field (if this field is blank ....) does not work any longer.

I hope NetGate will fix it!

Louis

stephenw10

AFAIK we are unable to replicate that locally. Certainly it works fine for me.

We need to see the working and failing mpd conf files, the config that generates them and the logs they produce when trying to connect if you can get them.

Steve

louis2

@stephenw10

It would be helpfull if you decribe which files you exactly need. I did a find / -name "mpd" on the command line

/dev/dumpdev
/usr/lib/debug/usr/sbin/bsnmpd.debug
/usr/local/include/unicode/smpdtfmt.h
/usr/local/share/licenses/mpd5-5.8_10
/usr/local/share/pear/tests/XML_RPC2/tests/XML_RPC2/phpBackend/cachedServer/tmpdir.inc
/usr/local/share/pear/tests/XML_RPC2/tests/XML_RPC2/phpBackend/cachedClient/tmpdir.inc
/usr/local/share/pear/tests/XML_RPC2/tests/XML_RPC2/xmlrpcextBackend/cachedClient/tmpdir.inc
/usr/local/share/pear/tests/XML_RPC2/tests/XML_RPC2/xmlrpcextBackend/cachedServer/tmpdir.inc
/usr/local/share/pear/tests/Cache_Lite/tests/tmpdir.inc
/usr/local/etc/mpd5
/usr/local/etc/mpd5/mpd.secret.sample
/usr/local/etc/mpd5/mpd.conf.sample
/usr/local/etc/mpd5/mpd.script.sample
/usr/local/etc/rc.d/mpd5
/usr/local/man/man8/mpd5.8.gz
/usr/local/sbin/mpd5
/usr/local/sbin/mpd.script
/usr/sbin/bsnmpd
/var/etc/mpd.script
/var/etc/mpd_wan.conf
/etc/snmpd.config
/etc/rc.d/bsnmpd
/etc/dumpdates

So please mark what you need. Note that I will be away for a few days.

Louis

stephenw10

Sorry, it's /var/etc/mpd_wan.conf in your case but that does change with the interface it's running on.

That is the actual file loaded by mpd5 so if there is some chnage the gui is making that's where is will be. On my box for example:

root    31538   0.0  0.4 14460  8240  -  Ss   16Aug20     1:04.92 /usr/local/sbin/mpd5 -b -k -d /var/etc -f mpd_opt4.conf -p /var/run/pppoe_opt4.pid -s ppp pppoeclient

Steve

louis2

@stephenw10

Here my actual (working) mpd_wan.conf I will try to send a non working version in my next post

Louis

startup:
# configure the console
set console close
# configure the web server
set web close

default:
pppoeclient:
create bundle static wan
set bundle enable ipv6cp
set iface name pppoe1
set iface disable on-demand
set iface idle 0
set iface enable tcpmssfix
set iface up-script /usr/local/sbin/ppp-linkup
set iface down-script /usr/local/sbin/ppp-linkdown
set ipcp ranges 0.0.0.0/0 0.0.0.0/0
set ipcp enable req-pri-dns
set ipcp enable req-sec-dns
#log -bund -ccp -chat -iface -ipcp -lcp -link

create link static wan_link0 pppoe
set link action bundle wan
set link disable multilink
set link keep-alive 10 60
set link max-redial 0
set link disable chap pap
set link accept chap pap eap
set link disable incoming
set auth authname "<myname>"
set auth password something
set pppoe service "INTERNET"
set pppoe max-payload 1500
set pppoe iface em0.6
open

louis2

I just removed the MTU-value and restarted pfSense

After that:

the PPPOE interface was still working .....

And I noticed two differences in the mpd_wan.conf

create link static wan_link0 pppoe
set link action bundle wan
set link disable multilink
set link keep-alive 10 60
set link max-redial 0
set link disable chap pap
set link accept chap pap eap
set link disable incoming
==> NEW   set link mtu 1492
set auth authname "<myname>"
set auth password something
set pppoe service "INTERNET"
==> GONE set pppoe max-payload 1500
set pppoe iface em0.6
open

I do not know, why the interface is still working now or why it did not work in the past.

I will keep the actual setting for the next weeks, to see if it stays working.

Louis

stephenw10

Hmm.

Well at least that's the same as what I found above so there's not something odd with your system specifically.

It would be interesting to know what that file was on a snapshot before you started seeing this.

Let us know if that changes.

Steve