Solved PPPoE issues - both ppp and mpd5

T

tcn

Hi,

I am having a strange issue with PPPoE and I just don't understand it. I am on a standard FreeBSD 12.2-RELEASE installation.

This server used to be on OpenBSD but I recently switched. I was using ppp and so this is what I am using now.

The issue with ppp is that I just can't go beyond 150Mbps in download data rate while I am on a 1Gbps link. I still don't know.
So I saw in a few posts (dating posts but still...) people are using mpd5 instead; so I decided to give it a shot.

Right away, speed was normal everything seems solved ..... until I tried to go on a few sites.
Some work while others don't. For instance, https://www.freebsd.org doesn't which is very well working when using the stock ppp.....

So I am back to square one. I Immediately thought this is an MTU issue; I dropped it to 1400 but still ... no joy. It is working very well (well.... working; not at the proper speed) with ppp which is at the standard 1492. I didn't specify MRU though but usually follows MTU.

I am puzzled; I just can't see why. I am back on ppp for now but must figure out a way to get the speed back. I do not know why ppp and mpd5 are behaving so differently.

Anyone can help because I am fresh out of ideas....

Best regards,
tcn

ppp.conf
Code: 
default:
  set log Phase tun command
  set ifaddr 10.0.0.1/0 10.0.0.2/0

ISP:
  set device PPPoE:internet
  set authname ************
  set authkey ************
  set dial
  set redial 3 5
  set login
  add default HISADDR

mpd.conf
Code: 
default:
        load isp
isp:
        create bundle static bundle0
        set bundle links link0
        set ipcp ranges 0.0.0.0/0 0.0.0.0/0
        set ipcp disable vjcomp
        set iface route default
        create link static link0 pppoe
        set auth authname **********
        set auth password **********
        set pppoe iface internet
        set pppoe service "********"
        set link max-redial 0
        set link keep-alive 10 60
        set link enable shortseq
        set link mtu 1492
        set link mru 1492
        set link action bundle bundle0
        open
 
tcn said:
... Some work while others don’t. ...
Click to expand...
Perhaps this is related to the following situation. Most sites would offer upload speeds well below of 1 Gbit/s -- their’s upload is your download. So even if your down link is 1 Gbit/s, your peers simply may not have a corresponding uplink.
 
Hi obsigna,

I just found the solution..... I added ttcpmssfix to the mpd.conf file. It seems like there are a few misaligned MTUs in the path.

Thanks for answering though!

Best regards,
tcn
 
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