Missing PPPoE interfaces in l2tp configuration
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Unknown Object (User)

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	oliveriandrea
	Aug 10 2016, 9:47 PM

Description

Hi, I have a VyOS system which uses an ethernet port as a PPPoE port (pppoe0) to connect to internet. I obtain a dynamic IP from the ISP.
I wish use pppoe0 with l2tp server so i have tried the following command

set vpn l2tp remote-access dhcp-interface pppoe0

but pppoe0 does not appear in the list of available interfaces. The system allows to insert pppoe0 in the last command but when I "commit it" i receive the following error

L2TP VPN configuration error: The specified interface is not configured for DHCP.

please, can you permit to use pppoe interface with dynamic address with l2tp server?

Details

Difficulty level: Easy (less than an hour)
Version: 1.2.0
Why the issue appeared?: Implementation mistake
Is it a breaking change?: Perfectly compatible

Event Timeline

oliveriandrea created this task.Aug 10 2016, 9:47 PM

oliveriandrea added a project: VyOS 1.1.x (1.1.8).Aug 10 2016, 10:05 PM

oliveriandrea updated the task description. (Show Details)

syncer edited projects, added VyOS 1.2 Crux; removed VyOS 1.1.x (1.1.8).Dec 14 2016, 1:43 PM

syncer edited subscribers, added: VyOS 1.2 Crux; removed: oliveriandrea.

syncer added a subscriber: oliveriandrea.

dmbaturin edited projects, added VyOS 1.3 Equuleus; removed VyOS 1.2 Crux.Oct 13 2018, 10:33 AM

dmbaturin set Version to 1.2.0.

syncer changed the subtype of this task from "Task" to "Bug".Oct 18 2018, 5:52 AM

pasik added a subscriber: pasik.Mar 12 2019, 6:12 PM

syncer assigned this task to Unknown Object (User).Nov 17 2019, 3:11 AM

I propose in this case use set vpn l2tp remote-access outside-address 0.0.0.0. It works in current rolling.

In T125#51628, @Dmitry wrote:

I propose in this case use set vpn l2tp remote-access outside-address 0.0.0.0. It works in current rolling.

Hi, Dmitry
I found that this setting have bug that is when i try to set my pppoe dynamic address like xxx.xxx.12.16(pppoe0 wan address) . I can connect vpn. but when i set set vpn l2tp remote-access outside-address 0.0.0.0 after reboot it will not work any more.

Hi @dongjunbo , could you try the package for 1.2.5 with fixing this issue?

vyatta-ravpn_1.2.5_all.deb24 KBDownload

Just upload this package to your router and install

sudo dpkg -i vyatta-ravpn_1.2.5_all.deb

Changes in package

diff --git a/lib/Vyatta/L2TPConfig.pm b/lib/Vyatta/L2TPConfig.pm
index 06cd343..792d0e9 100644
--- a/lib/Vyatta/L2TPConfig.pm
+++ b/lib/Vyatta/L2TPConfig.pm
@@ -616,6 +616,10 @@ sub get_l2tp_conf {
     $oaddr = get_dhcp_addr($dhcpif);
   }
   return (undef, 'Outside address not defined') if (!defined($oaddr));
+  my $c_oaddr = '';
+  if ($oaddr ne "0.0.0.0"){
+    $c_oaddr = 'listen-addr = '.$oaddr;
+  }
   my $cstart = $self->{_client_ip_start};
   return (undef, 'Client IP pool start not defined') if (!defined($cstart));
   my $cstop = $self->{_client_ip_stop};
@@ -637,7 +641,7 @@ sub get_l2tp_conf {
   my $str =<<EOS;
 ;$cfg_delim_begin
 [global]
-listen-addr = $oaddr
+$c_oaddr
 
 [lns default]
 ip range = $cstart-$cstop
@@ -703,6 +707,7 @@ EOM
 sub maybeClustering {
   my ($self, $config, @interfaces) = @_;
   return 0 if (defined($self->{_dhcp_if}));
+  return 0 if ($self->{_out_addr} eq "0.0.0.0");
   return (!(Vyatta::Misc::isIPinInterfaces($config, $self->{_out_addr},
                                          @interfaces)));
 }

Unknown Object (User) changed the task status from Open to In progress.Aug 13 2020, 7:51 AM

Unknown Object (User) changed the task status from In progress to Needs testing.Aug 13 2020, 10:07 AM

dmbaturin added a project: VyOS 1.2 Crux (VyOS 1.2.6).Aug 13 2020, 10:54 AM

dmbaturin set Why the issue appeared? to Implementation mistake.

dmbaturin set Is it a breaking change? to Perfectly compatible.

Successfully tested on VyOS 1.2.6-epa1

syncer moved this task from Needs Triage to Finished on the VyOS 1.2 Crux (VyOS 1.2.6) board.Sep 7 2020, 8:09 PM

Missing PPPoE interfaces in l2tp configurationClosed, ResolvedPublicBUGActions

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Missing PPPoE interfaces in l2tp configuration
Closed, ResolvedPublicBUG
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