PPTP problem - No buffer space available

A

Anti_Evil

Dears,

I'm trying to configure my PPTP connection to our office VPN server. I've reviewed most available tutorials for configuring a PPTP client, so I installed pptpclient and configured ppp.conf:

Code: 
[root@hadi-pc] ~# cat /etc/ppp/ppp.conf
myvpn:
 set authname USERNAME
 set authkey PASSWORD
 set timeout 0
 set ifaddr 0 0
 add default HISADDR
 alias enable yes

Then I tried to connect to the VPN server:
pptp myvpn X.X.X.X

Actually, I think the connection is ok and I've authenticated successfully, because I see a new interface called tun0 is created and the proper IP address is assigned to that interface. Then I tried to ping the VPN server, and other addresses but every time I get:
Code: 
ping: No buffer space available
And seconds later, the PPTP connection will drop. It is also the ppp logs:

Code: 
Oct  7 17:10:10 hadi-pc ppp[71881]: Phase: Using interface: tun0
Oct  7 17:10:10 hadi-pc ppp[71881]: Phase: deflink: Created in closed state
Oct  7 17:10:10 hadi-pc ppp[71881]: Warning: The alias command is deprecated
Oct  7 17:10:10 hadi-pc ppp[71881]: Phase: PPP Started (direct mode).
Oct  7 17:10:10 hadi-pc ppp[71881]: Phase: bundle: Establish
Oct  7 17:10:10 hadi-pc ppp[71881]: Phase: deflink: closed -> opening
Oct  7 17:10:10 hadi-pc ppp[71881]: Alert: deflink: Can't create /var/run/pts/5.if: No such file or directory
Oct  7 17:10:10 hadi-pc ppp[71881]: Phase: deflink: Connected!
Oct  7 17:10:10 hadi-pc ppp[71881]: Phase: deflink: opening -> carrier
Oct  7 17:10:11 hadi-pc ppp[71881]: Phase: deflink: /dev/pts/5: CD detected
Oct  7 17:10:11 hadi-pc ppp[71881]: Phase: deflink: carrier -> lcp
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: bundle: Authenticate
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: deflink: his = CHAP 0x81, mine = none
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: Chap Input: CHALLENGE (16 bytes from MikroTik)
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: Chap Output: RESPONSE (USERNAME)
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: Chap Input: SUCCESS (S=A8361BED743BEC8457184D3EDF9A453451C229A7)
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: deflink: lcp -> open
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: bundle: Network
Oct  7 17:10:13 hadi-pc ppp[71881]: Phase: Unknown protocol 0x8281 (unrecognised protocol)
Oct  7 17:10:13 hadi-pc ppp[71881]: Error: rt_Set: Cannot add a route with gateway 0.0.0.0
Oct  7 17:11:13 hadi-pc ppp[71881]: Phase: deflink: HDLC errors -> FCS: 0, ADDR: 0, COMD: 0, PROTO: 1
Oct  7 17:11:18 hadi-pc ppp[71881]: Phase: Signal 15, terminate.
Oct  7 17:11:18 hadi-pc ppp[71881]: Phase: Signal 15, terminate.
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: Caught signal 2, abort connection(s)
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: deflink: open -> lcp
Oct  7 17:11:19 hadi-pc ppp[71881]: Warning: 0.0.0.0: Change route failed: errno: No such process
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: bundle: Terminate
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: deflink: Disconnected!
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: deflink: Connect time: 69 secs: 654 octets in, 3946458768 octets out
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: deflink: 22 packets in, 6928601 packets out
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase:  total 57195064 bytes/sec, peak 62131405 bytes/sec on Mon Oct  7 17:10:58 2013
Oct  7 17:11:19 hadi-pc ppp[71881]: Alert: deflink: Can't remove /var/run/pts/5.if: No such file or directory
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: deflink: lcp -> closed
Oct  7 17:11:19 hadi-pc ppp[71881]: Warning: Delete route failed: 172.22.128.98: errno: Address already in use
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: bundle: Dead
Oct  7 17:11:19 hadi-pc ppp[71881]: Phase: PPP Terminated (normal).

/var/log/messages log:
Code: 
Oct  7 17:10:08 hadi-pc pptp[71881]: anon log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Oct  7 17:10:08 hadi-pc pptp[71890]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Oct  7 17:10:08 hadi-pc pptp[71890]: anon log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply
Oct  7 17:10:08 hadi-pc pptp[71890]: anon log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Oct  7 17:10:09 hadi-pc pptp[71890]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Oct  7 17:10:09 hadi-pc pptp[71890]: anon log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Oct  7 17:10:09 hadi-pc pptp[71890]: anon log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 13975).
Oct  7 17:10:10 hadi-pc kernel: tun0: link state changed to UP
Oct  7 17:10:10 hadi-pc ppp[71881]: Warning: The alias command is deprecated
Oct  7 17:10:10 hadi-pc ppp[71881]: Alert: deflink: Can't create /var/run/pts/5.if: No such file or directory
Oct  7 17:10:13 hadi-pc ppp[71881]: Error: rt_Set: Cannot add a route with gateway 0.0.0.0
Oct  7 17:11:18 hadi-pc pptp[71890]: anon log[pptp_read_some:pptp_ctrl.c:544]: read returned zero, peer has closed
Oct  7 17:11:18 hadi-pc pptp[71890]: anon log[callmgr_main:pptp_callmgr.c:258]: Closing connection (shutdown)
Oct  7 17:11:18 hadi-pc pptp[71890]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Oct  7 17:11:18 hadi-pc pptp[71890]: anon log[pptp_read_some:pptp_ctrl.c:544]: read returned zero, peer has closed
Oct  7 17:11:18 hadi-pc pptp[71890]: anon log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Oct  7 17:11:19 hadi-pc ppp[71881]: Warning: 0.0.0.0: Change route failed: errno: No such process
Oct  7 17:11:19 hadi-pc ppp[71881]: Alert: deflink: Can't remove /var/run/pts/5.if: No such file or directory
Oct  7 17:11:19 hadi-pc ppp[71881]: Warning: Delete route failed: 172.22.128.98: errno: Address already in use
Oct  7 17:11:19 hadi-pc pptp[71931]: anon warn[decaps_hdlc:pptp_gre.c:204]: short read (0): No buffer space available
Oct  7 17:11:19 hadi-pc kernel: tun0: link state changed to DOWN


I've searched over net, and some guys were offered to expand the kern.ipc.nmbclusters system parameter, I've already tried that but the result still the same. Can anyone please help me?
 
On what version of FreeBSD? And are you running a custom kernel? Post the output of uname -a.
 
Dear SirDice,

I'm using PCBSD9.2 RELEASE on my laptop:

Code: 
[root@hadi-pc] /var/log# uname -a
FreeBSD hadi-pc 9.2-RELEASE-p8 FreeBSD 9.2-RELEASE-p8 #0: Mon Sep 23 16:26:45 UTC 2013     root@amd64-builder.pcbsd.org:/usr/obj/usr/src/sys/GENERIC  amd64
 
Obligatory warning: [thread=7290]PC-BSD DesktopBSD FreeNAS NAS4Free m0N0WALL pfSense ArchBSD kFreeBSD JabirOS topics[/thread]

Make sure there isn't a firewall interfering. And I'm wondering about this one:
Code: 
17:10:13 hadi-pc ppp[71881]: Phase: Unknown protocol 0x8281 (unrecognised protocol)

What's the VPN server running?
 
Thanks a lot for reply,

I think the VPN server is "MikroTik". About the firewall, actually I'm pretty sure that all network devices (routers+firewall between PC and VPN server) have granted PC with all required access-list.

But from the PCBSD box view, I'm not sure, it is what I see:

Code: 
00100 allow ip from any to any via lo0
00200 deny ip from any to 127.0.0.0/8
00300 deny ip from 127.0.0.0/8 to any
00400 deny ip from any to ::1
00500 deny ip from ::1 to any
00600 allow ipv6-icmp from :: to ff02::/16
00700 allow ipv6-icmp from fe80::/10 to fe80::/10
00800 allow ipv6-icmp from fe80::/10 to ff02::/16
00900 allow ipv6-icmp from any to any ip6 icmp6types 1
01000 allow ipv6-icmp from any to any ip6 icmp6types 2,135,136
65000 allow ip from any to any
65535 deny ip from any to any

Please be noted that this log is taken before running pptp.
 
I think you need to find out the specific VPN protocols this MicroTik supports. As far as I can tell there's a difference in what the VPN client wants and what the server provides.
 
Thank you very much,
I'll study the current config of the VPN server, hopefully if I could find the solution I'll update back here.

Thanks again.
 
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