My environment looks like I used a PC Engines APU.4D2/4D4 as hardware, but I have also tested it in a vm. Currently opnsense is installed and I would like to switch to vyos.
Now I have the problem that pppoe does not work. In opnsense it works fine. The internetprovider is ewetel, which is an internet provider in northern germany. As modem I use a DrayTek Vigor130, which passes the pppoe. The pppoe connection itself is available via vlan 7.
config vyos
These are the parameters in vyos:
set interfaces ethernet eth0 vif 7 description 'VDSL'
#set interfaces pppoe pppoe0 default-route 'auto'
set interfaces pppoe pppoe0 default-route 'force'
set interfaces pppoe pppoe0 mtu 1492
set interfaces pppoe pppoe0 authentication user 'n00123456#100@ab-c.de'
set interfaces pppoe pppoe0 authentication password 'testtest'
set interfaces pppoe pppoe0 source-interface 'eth0.7'
set interfaces pppoe pppoe0 service-name '1'
Username and password is anominized
I tested with vyos version 1.3 from 202205161705 and 202212201603 and copy the username and password directly from opnsense.
I used tcpdump to capture the network traffic on the wan port. I can’t upload cap/pcapng, so i exported it as txt via wireshark. I have anomized this and replaced the mac-address, ip-addresses, host-uniq, ac-name, ac-cockie as well as the value value in the ppp chap challengeresponse.
I also find this very strange, I use this config myself for telekom.
So the problem is that vyos can not connect to the internet and therefore does not create a pppoe interface.
Logs
Here are the logs for my config and yours:
config:
set interfaces ethernet eth0 vif 7 description 'VDSL'
#set interfaces pppoe pppoe0 default-route 'auto'
set interfaces pppoe pppoe0 default-route 'force'
set interfaces pppoe pppoe0 mtu 1492
set interfaces pppoe pppoe0 authentication user 'n00123456#100@ab-c.de'
set interfaces pppoe pppoe0 authentication password 'testtest'
set interfaces pppoe pppoe0 source-interface 'eth0.7'
set interfaces pppoe pppoe0 service-name '1'
log:
Jan 2 08:46:22 vyos pppd[1355]: Timeout waiting for PADO packets
Jan 2 08:46:22 vyos pppd[1355]: Unable to complete PPPoE Discovery
Jan 2 08:46:52 vyos kernel: [ 86.293653] pppoe0: renamed from ppp0
Jan 2 08:46:52 vyos pppd[1355]: PPP session is 116
Jan 2 08:46:52 vyos pppd[1355]: Connected to 30:b6:4f:e3:a3:d1 via interface eth0.7
Jan 2 08:46:52 vyos pppd[1355]: Renamed interface ppp0 to pppoe0
Jan 2 08:46:52 vyos pppd[1355]: Using interface pppoe0
Jan 2 08:46:52 vyos pppd[1355]: Connect: pppoe0 <--> eth0.7
Jan 2 08:46:52 vyos bgpd[888]: [EC 100663301] INTERFACE_STATE: Cannot find IF ppp0 in VRF 0
Jan 2 08:46:52 vyos systemd-udevd[1756]: link_config: could not get ethtool features for ppp0
Jan 2 08:46:52 vyos systemd-udevd[1756]: Could not set offload features of ppp0: No such device
Jan 2 08:46:53 vyos pppd[1355]: CHAP authentication failed: User check attributes mismatch
Jan 2 08:46:53 vyos pppd[1355]: CHAP authentication failed
Jan 2 08:46:53 vyos pppd[1355]: Modem hangup
Jan 2 08:46:53 vyos pppd[1355]: Connection terminated.
Jan 2 08:46:53 vyos bgpd[888]: [EC 100663301] INTERFACE_STATE: Cannot find IF pppoe0 in VRF 0
Jan 2 08:46:53 vyos pppd[1355]: Sent PADT
config:
set firewall options interface pppoe0 adjust-mss '1452'
set interfaces pppoe pppoe0 authentication user 'n00123456#100@ab-c.de'
set interfaces pppoe pppoe0 authentication password 'testtest'
set interfaces pppoe pppoe0 default-route 'auto'
set interfaces pppoe pppoe0 no-peer-dns
set interfaces pppoe pppoe0 source-interface 'eth0.7'
log:
Jan 2 08:50:40 vyos pppd[2158]: Plugin rp-pppoe.so loaded.
Jan 2 08:50:40 vyos pppd[2158]: Plugin rp-pppoe.so loaded.
Jan 2 08:50:40 vyos pppd[2158]: pppd 2.4.7 started by root, uid 0
Jan 2 08:50:40 vyos vyos-configd[604]: Received message: {"type": "node", "data": "VYOS_TAGNODE_VALUE=pppoe0/usr/libexec/vyos/conf_mode/firewall_options.py"}
Jan 2 08:50:55 vyos kernel: [ 71.350021] pppoe0: renamed from ppp0
Jan 2 08:50:55 vyos pppd[2158]: PPP session is 25
Jan 2 08:50:55 vyos pppd[2158]: Connected to 30:b6:4f:e3:a3:d1 via interface eth0.7
Jan 2 08:50:55 vyos pppd[2158]: Renamed interface ppp0 to pppoe0
Jan 2 08:50:55 vyos pppd[2158]: Using interface pppoe0
Jan 2 08:50:55 vyos pppd[2158]: Connect: pppoe0 <--> eth0.7
Jan 2 08:50:55 vyos bgpd[882]: [EC 100663301] INTERFACE_STATE: Cannot find IF ppp0 in VRF 0
Jan 2 08:50:55 vyos systemd-udevd[2249]: link_config: could not get ethtool features for ppp0
Jan 2 08:50:55 vyos systemd-udevd[2249]: Could not set offload features of ppp0: No such device
Jan 2 08:50:56 vyos pppd[2158]: CHAP authentication failed: User check attributes mismatch
Jan 2 08:50:56 vyos pppd[2158]: CHAP authentication failed
Jan 2 08:50:56 vyos pppd[2158]: Modem hangup
Jan 2 08:50:56 vyos pppd[2158]: Connection terminated.
Jan 2 08:50:56 vyos bgpd[882]: [EC 100663301] INTERFACE_STATE: Cannot find IF pppoe0 in VRF 0
Jan 2 08:50:56 vyos pppd[2158]: Sent PADT
@rasmuoy , this config not exist in the version 1.4, the alternative is the config from @c-po:
set firewall options interface pppoe0 adjust-mss '1452'
But this does not solve the problem, thanks for this.
@c-po the folder “/etc/ppp/peers” does not exist in the system, only the folder “/etc/ppp”. In this folder the file “ppp.conf” exist:
#################################################################
# PPP Sample Configuration File
# Originally written by Toshiharu OHNO
# Simplified 5/14/1999 by wself@cdrom.com
#
# See /usr/share/examples/ppp/ for some examples
#
# $FreeBSD$
#################################################################
default:
set log Phase Chat LCP IPCP CCP tun command
ident user-ppp VERSION
# Ensure that "device" references the correct serial port
# for your modem. (cuau0 = COM1, cuau1 = COM2)
#
set device /dev/cuau1
set speed 115200
set dial "ABORT BUSY ABORT NO\\sCARRIER TIMEOUT 5 \
\"\" AT OK-AT-OK ATE1Q0 OK \\dATDT\\T TIMEOUT 40 CONNECT"
set timeout 180 # 3 minute idle timer (the default)
enable dns # request DNS info (for resolv.conf)
papchap:
#
# edit the next three lines and replace the items in caps with
# the values which have been assigned by your ISP.
#
set phone PHONE_NUM
set authname USERNAME
set authkey PASSWORD
set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
add default HISADDR # Add a (sticky) default route
u3g:
set device /dev/cuaU0.0
set phone *99\#
set timeout 0
set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
add default HISADDR # Add a (sticky) default route
I mean, that seems to be exactly it. Vyos is filtering out the #, @ and . when you save the username, so it is trying to log in to your ISP with your username missing those characters, so your ISP would be responding with “I don’t know that user”.
Glad You posted this thread, I’ve been planning to replace my ISP’s antiquated modem/router with a Draytek modem like yours (though Vigor130s aren’t available down under, sadly) and bridge it over to Vyos for use as a firewall, and they use an email address as the username as well, so I’d definitely get stung by the same error.
I’d say it is worth making this a formal bug report, symbols like @ and . seem obvious to allow for use in usernames. # might have special functionality in their configuration files so it might take extra work to include it without unexpected results…
I’d write a patch to try out, but any code I write becomes property of my employer so best left for someone less encumbered by contracts
I had searched the GitHub org for “pppoe” and that was where I had ended up. Still got a long way to go to properly learn the layout of it all. Sorry to be a time sink!
