PPTP/L2TP on interfaces
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I'll investigate what's involved in making this work.
Gabriel -
Great, thanks a lot!
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I was wondering if there are any news on that?
Also, I opened a feature request: http://redmine.pfsense.org/issues/624 -
https://rcs.pfsense.org/projects/pfsense/repos/gnhb-clone/commits/3a906378cb8094c4fcf1c6ad7421199670ad8e70
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ok, first - thank you very much!
second - I'm not sure about what to do with that. As I understand, it's still in clone repositories, because I don't see the "ppps" tab in the "interfaces" page yet (I downloaded the last snapshot today).
When will it be in the snapshot? -
You can't really do anything with it easily. I just posted that to show you that it was getting in there. This code will be in the snapshots soon. I'll try to remember to post back here when it gets in.
If you PM me your email address I can give you some advanced testing files, but you have to promise to post your results and feedback back here. :)
GB
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As I try to refine this solution, it occurs to me that it's not possible to do a DNS lookup without some existing link to the internet, so how exactly does one resolve the pptp server hostname?
I can understand that DHCP returns a local IP, and a router/gateway IP which are for the modem itself, but if the modem is not connected to the ISP somehow already, this situation will not be possible.
Please provide more detailed information.
Thanks,
GB
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Unfortunately, I don't really know about what's going on behind the scene, but I believe that the dns lookup is done through the local gateway. This scenario comes native in all the cheap routers sold here, so I guess that's the way it's done.
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Okay. I get it now. I looked up with Google!
You have a cable modem right?with HOT right?
GB
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that's right:)
was i right in my assumptions?
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Hi,
Thank you for working on this option.
I tried to test it by setting the physical interface as opt1 (dhcp ) and assigning the l2tp to wan.
Tried also by directly setting wan as l2tp and in the mlppp tab setting its physical interface. But i don't see it trying to connect (nothing in the system log and ppp log + wan is down).Am i doing something wrong here ?
Is there a way to see a more verbose log of the pptp/l2tp connection ?Thanks !
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Some code that does this is currently in snapshots from June 15th or later, but it's commented out. You must uncomment it in /etc/inc/interfaces.inc like this (code below), and you must have a separate interface defined (like OPT1) that is set to enable DHCP on the same physical interface that the PPtP link is using.
The PPtP link won't come up at boot time. You'll have to start it manually from Status->Interfaces page. This will hopefully be less manual in the future.GB
diff --git a/etc/inc/interfaces.inc b/etc/inc/interfaces.inc index 84e1376..8bce426 100644 --- a/etc/inc/interfaces.inc +++ b/etc/inc/interfaces.inc @@ -1062,13 +1062,13 @@ function interface_ppps_configure($interface) { /* XXX: This needs to go away soon! [It's commented out!] */ /* Configure the gateway (remote IP ) */ if (!$g['booting'] && !is_ipaddr($gateways[$pid]) && is_hostname($gateways[$pid])) { - /* XXX: Fix later + /* XXX: Fix later */ $gateways[$pid] = gethostbyname($gateways[$pid]); if(!is_ipaddr($gateways[$pid])) { log_error("Could not get a valid Gateway IP from {$port} via DNS in interfaces_ppps_configure."); return 0; } - */ + } if(!is_ipaddr($gateways[$pid])){ log_error("Could not get a PPtP/L2tP Remote IP address from {$dhcp_gateway} for {$gway} in interfaces_ppps_configure."); -
Hi,
finally got around to test it.In my testing environment I only have WAN and Wi-Fi for LAN, so I set WAN to DHCP, created another interface (OPT1) on the PPPs tab and configured it to PPTP. I also uncommented the code you mentioned, but as Micky said previously - nothing happens.
I see the "connect" button on the "interfaces" status, and when pressed - nothing happens, no logged events, nothing.
Am I doing something wrong?
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I've managed to get the PPTP to dial up, but the no traffic outside.
I think the problem is the gateway, in the gateway list i can only see the DHCP gateway thorough which i dialed the VPN and not the PPTPs.And in PPP log:
Aug 3 20:07:29 ppp: [wan] IFACE: Up event
Aug 3 20:07:29 ppp: [wan] IFACE: Add route 0.0.0.0/0 212.25.114.90 failed: File exists
Aug 3 20:07:29 ppp: [wan] 84.110.xxx.xxx -> 212.25.114.90
Aug 3 20:07:29 ppp: [wan] IPCP: LayerUp
Aug 3 20:07:29 ppp: [wan] IPCP: state change Ack-Sent –> Opened
Aug 3 20:07:29 ppp: [wan] SECDNS 62.219.186.7
Aug 3 20:07:29 ppp: [wan] PRIDNS 192.117.235.235
Aug 3 20:07:29 ppp: [wan] IPADDR 84.110.xxx.xxx
Aug 3 20:07:29 ppp: [wan] IPCP: rec'd Configure Ack #3 (Ack-Sent)To get it to dial i set
OPT1 as DHCP (on physical interface)
WAN as PPTP (on OPT1) – and not on the physical interfaceOn L2TP it somehow tried to dial once but i cant repeat that, there is no button to start the interface in the status_interface.php page,
just "Status down".Edit:
Probably NOT the gateway, if i try to ping something the host name is resolved correctly. -
Try allowing traffic to flow in the firewall rules.
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Micky,
can you be a bit more specific about how you set up the interfaces?
Did you enable the OPT1? What did enter on WAN interface in the regular "interfaces" page?
What/where did you enter on the new PPPs "interfaces" page?Thanks.
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Starting with WAN set as DHCP on fxp0
(my wan physical interface is fxp0.)I did the following:
1. added PPTP link in ppps tab on fxp0 (will be changed later)
2. added OPT1 interface in the assign tab.
3. swapped OPT1 to fxp0 and WAN to pptp (assign tab)
4. went to the OPT1 config page, enabled it and set it do DHCP
5. in ppps tab edited the PPTP link and changed it from fxp0 to OPT1 (without this nothing will work)I didn't touch the WAN config page, it is automatically set to PPTP with the username and password.
And i'm dialing the PPTP server by IP ( i dont know the pptp hostname, only the l2tp [my isp: 014])I can ping the gateway and the hostnames are resolved correctly but no more then that.
Already tried to add Allow rules (any protocol) on all interfaces.
The weird part if i trace route something the first ip is 10.xxx.xxx.xxx (trace & ping done from console)
and i shouldn't have anything of this type (my lan is 192.168.xxx.xxx, OPT1 is 172.28.xxx.xxx and WAN (pptp) is 84.xxx.xxx.xxx).I'll try clean install and L2TP after the file edit bug fixed as VI and I are incompatible. :-\
(oh, and don't restart, the pptp wont connect after restart)
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And here the l2tp log:
Aug 5 05:57:51 ppp: L2TP: Control connection 0x287d0d08 terminated: 6 (expecting reply; none received) Aug 5 05:56:50 ppp: L2TP: Initiating control connection 0x287d0d08 0.0.0.0 0 <-> 0.0.0.0 1701 Aug 5 05:56:50 ppp: [wan_link0] LCP: LayerStart Aug 5 05:56:50 ppp: [wan_link0] LCP: state change Initial --> Starting Aug 5 05:56:50 ppp: [wan_link0] LCP: Open event Aug 5 05:56:50 ppp: [wan_link0] Link: OPEN event Aug 5 05:56:50 ppp: mpd_wan.conf:35: Incorrect context for: 'set pptp disable windowing' Aug 5 05:56:50 ppp: mpd_wan.conf:34: Incorrect context for: 'set pptp peer 212.25.127.14' Aug 5 05:56:50 ppp: mpd_wan.conf:33: Incorrect context for: 'set pptp self 172.28.142.143' Aug 5 05:56:50 ppp: [wan] Bundle: Interface ng0 created Aug 5 05:56:50 ppp: web: web is not running Aug 5 05:56:50 ppp: process 17453 started, version 5.5 (root@FreeBSD_8.0_pfSense_2.0-snaps.pfsense.org 17:45 2-Jul-2010) Aug 5 05:56:50 ppp: Aug 5 05:56:50 ppp: Multi-link PPP daemon for FreeBSDas far as i understand the ip addresses are not set correctly.
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Managed to get L2TP working, modified interfaces.inc a bit, and still a small problem with DNS, gateway and that the L2TP interface doesnt have connect/disconnect button, but i'm writing this through pfsense.
changed:
if ($type == "pptp" || $type == "l2tp") { $mpdconf .= << <eod<br>set pptp self {$localips[$pid]} set pptp peer {$gateways[$pid]} set pptp disable windowing EOD;</eod<br>To
if ($type == "pptp") { $mpdconf .= << <eod<br>set pptp self {$localips[$pid]} set pptp peer {$gateways[$pid]} set pptp disable windowing EOD; } if ($type == "l2tp") { $mpdconf .= << <eod<br>set l2tp self {$localips[$pid]} set l2tp peer {$gateways[$pid]} set l2tp disable windowing EOD; }</eod<br></eod<br>(and uncommented the gateway part)
And after the link is up had to change the gateways, In pfsense console i did
route delete default
route add default 212.xxx.xxx.xxx(where the 212.xxx… address is the gateway acquired via the l2tp vpn dhcp - it is added to the table but not as the default route)
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I have triad to do the same (Also 014 as ISP) but no joy.
Triad both l2tp & pptp.but just to be sure -
When I create the l2tp interface, I put the 212.179….. in the Gateway and leave the Local IP blank.
Am I correct ?