PPTP VPN

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Krauss

Occasional Visitor
Hello,

I would like to have some help with a log that I don't understand (and didn't find a reasonable explanation on web):

1-I setup a VPN server (PPTP)
2-Create an user and pass
3- Connected with my cellphone without any problem (My cellphone acquires the routers public IP)
4-Tried a different device (satellite box) and it doesn't work . It reaches the router but can't connect
5-Tried different configurations on encryption (even with "No encryption), change MRU and MTU to the minimum and nothing...

I can see something suspicious in the log (Received bad configure-ack) but didn't find any help on web/forum.

Someone could guide me to understand what's happening and what can I ajust to make it work, please? (I don't have any parameters to tune on device side just User/pass/address.
The log is:

"Apr 12 23:37:34 pptpd[25761]: CTRL: Client 89.115.148.48 control connection started
Apr 12 23:37:34 pptpd[25761]: CTRL: Starting call (launching pppd, opening GRE)
Apr 12 23:37:34 pptp[25763]: Plugin pptp.so loaded.
Apr 12 23:37:34 pptp[25763]: PPTP plugin version 0.8.5 compiled for pppd-2.4.7, linux-2.6.36.4
Apr 12 23:37:34 pptp[25763]: pppd 2.4.7 started by Kraussvan, uid 0
Apr 12 23:37:34 pptp[25763]: Using interface pptp0
Apr 12 23:37:34 pptp[25763]: Connect: pptp0 <--> pptp (89.115.148.48)
Apr 12 23:37:35 pptp[25763]: Received bad configure-ack: 12 06 01 00 00 60
Apr 12 23:37:38 lldpd[350]: removal request for address of 192.168.7.1%37, but no knowledge of it
Apr 12 23:37:38 pptp[25763]: Cannot determine ethernet address for proxy ARP
Apr 12 23:37:38 pptp[25763]: local IP address 192.168.7.1
Apr 12 23:37:38 pptp[25763]: remote IP address 192.168.10.2
Apr 12 23:37:39 kernel: ppp: compressor dropped pkt
Apr 12 23:37:39 kernel: ppp: compressor dropped pkt
Apr 12 23:37:39 kernel: ppp: compressor dropped pkt
Apr 12 23:37:39 kernel: ppp: compressor dropped pkt"

and so on......

Thank you

Best

Kr.
 

eibgrad

Very Senior Member

Problem is, it appears the router does NOT include the directives debug and dump for debugging purposes, which makes finding the specific issue more difficult (might have been nice if the GUI at least provided it as an optional setting). You might need to use a postconf script (pptpd.conf) for those purposes.

Note: I assuming you're using Merlin, but perhaps that's not the case. You weren't specific.

I also found the following.


Same codes (12 06 00 00 00 01) . As Merlin suggests, perhaps a lack of MPPE support on the PPTP client. The answer lies in decoding that line from the syslog. Each code references a specific part of the configuration, and what the client is capable of supporting. It has to match what the PPTP server requires wrt those same settings. But I just don't recall specifically what each code references (would require more digging).

Regardless, if the PPTP client isn't reconfigurable, or you're not willing to reconfigure the PPTP server to accommodate it, you're out of luck, at least for that device.
 
Last edited:

Krauss

Occasional Visitor
EibGrab... you again :)

I think I can't go any further since I'm not capable to handle scripting and things like that. :(

Thanks again for your help.

PS: Yes I'm using the fantastic Merlin (386.2) !!!

Cheers!
 
Last edited:

eibgrad

Very Senior Member
Doesn't matter anyway since I just realized the postconf changes only the pptpd.conf file, when we need to change the options.pptpd file.

Here's a little trick to get the information anyway.

With the PPTP server enabled and running, copy/paste the following into an ssh window.

Code:
cmd="$(cat /proc/$(pidof pptpd)/cmdline | tr '\0' ' ')"
kill $(pidof pptpd) && sleep 3
echo debug >> /tmp/pptpd/options.pptpd
echo dump  >> /tmp/pptpd/options.pptpd
eval nohup $cmd >/dev/null 2>&1 &
# force final CR

What this will do is restart the PPTP server process w/ the debug and dump options. It's only meant for debugging purposes, NOT as a long term solution.

Now attempt the PPTP client connection, and once it fails, dump the PPTP log.

Code:
cat /var/log/pptpd-pppd.log

You should see a much more detailed log, something similar to the following.

Code:
Connect: pptp0 <--> pptp (192.168.1.7)
sent [LCP ConfReq id=0x1 <mru 1450> <asyncmap 0x0> <auth chap MS-v2> <magic 0x1f706f96> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x0 <mru 1400> <magic 0x3fed6a84> <pcomp> <accomp> <callback CBCP>]
sent [LCP ConfRej id=0x0 <callback CBCP>]
rcvd [LCP ConfAck id=0x1 <mru 1450> <asyncmap 0x0> <auth chap MS-v2> <magic 0x1f706f96> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <mru 1400> <magic 0x3fed6a84> <pcomp> <accomp>]
sent [LCP ConfAck id=0x1 <mru 1400> <magic 0x3fed6a84> <pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x1f706f96]
sent [CHAP Challenge id=0xa2 <f72dd2520700b9e6b67ed783166857c6>, name = "*"]
rcvd [LCP Ident id=0x2 magic=0x3fed6a84 "MSRASV5.20"]
rcvd [LCP Ident id=0x3 magic=0x3fed6a84 "MSRAS-0-ASPIRE1"]
rcvd [LCP Ident id=0x4 magic=0x3fed6a84 "\335,\030\365u0\001\000\004Z\030\365u0\327\001"]
rcvd [LCP EchoRep id=0x0 magic=0x3fed6a84]
rcvd [CHAP Response id=0xa2 <5d703c755155e200b894e9a2b4ca1aa500000000000000004e406acecc242ae485ce3c0d17e392f1563277aadcd3973f00>, name = "username"]
sent [CHAP Success id=0xa2 "S=C671A67A31B7F6E385CF11E8AC391F3DF36CCD9D M=Access granted"]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.1.1>]
rcvd [IPV6CP ConfReq id=0x5 <addr fe80::2886:4504:a712:7522>]
Unsupported protocol 'IPv6 Control Protocol' (0x8057) received
sent [LCP ProtRej id=0x2 80 57 01 05 00 0e 01 0a 28 86 45 04 a7 12 75 22]
rcvd [CCP ConfReq id=0x6 <mppe +H -M -S -L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfNak id=0x6 <mppe +H -M +S +L -D +C>]
rcvd [IPCP ConfReq id=0x7 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-wins1 0.0.0.0> <ms-dns2 0.0.0.0> <ms-wins2 0.0.0.0>]
sent [IPCP ConfNak id=0x7 <addr 192.168.10.2> <ms-dns1 192.168.1.1> <ms-wins1 192.168.1.1> <ms-dns2 192.168.1.1> <ms-wins2 192.168.1.1>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>]
sent [IPCP ConfReq id=0x2 <addr 192.168.1.1>]
rcvd [CCP ConfNak id=0x1 <mppe +H -M +S -L -D -C>]
sent [CCP ConfReq id=0x2 <mppe +H -M +S -L -D -C>]
rcvd [CCP ConfReq id=0x8 <mppe +H -M +S -L -D -C>]
sent [CCP ConfAck id=0x8 <mppe +H -M +S -L -D -C>]
rcvd [IPCP ConfReq id=0x9 <addr 192.168.10.2> <ms-dns1 192.168.1.1> <ms-wins1 192.168.1.1> <ms-dns2 192.168.1.1> <ms-wins2 192.168.1.1>]
sent [IPCP ConfAck id=0x9 <addr 192.168.10.2> <ms-dns1 192.168.1.1> <ms-wins1 192.168.1.1> <ms-dns2 192.168.1.1> <ms-wins2 192.168.1.1>]
rcvd [IPCP ConfAck id=0x2 <addr 192.168.1.1>]
Script /tmp/ppp/ip-pre-up started (pid 935)
Script /tmp/ppp/ip-pre-up finished (pid 935), status = 0x0
Cannot determine ethernet address for proxy ARP
local  IP address 192.168.1.1
remote IP address 192.168.10.2
Script /tmp/pptpd/ip-up started (pid 936)
rcvd [CCP ConfAck id=0x2 <mppe +H -M +S -L -D -C>]
MPPE 128-bit stateless compression enabled
Script /tmp/pptpd/ip-up finished (pid 936), status = 0x0

What's of particular interest is the rcvd/sent messages, since this is the PPTP client and server negotiating the session settings. When a PPTP client fails (in my example, it succeeded), it's usually because it can't meet one or more of the requirements of the PPTP server (often MPPE related).

Whether it's worth all the trouble, that's up to you. In the end, the issue may be moot anyway if you can't or otherwise won't change either the PPTP client or server to accommodate the other. But at least you have a means to investigate the specifics of the problem if it still interests you, now or in the future.

P.S. This is what used to make debugging PPTP client connections so much harder than OpenVPN. All the useful information is on the *server* side, which of course is inaccessible when dealing w/ a commercial PPTP provider.
 
Last edited:

Krauss

Occasional Visitor
"Whether it's worth all the trouble, that's up to you", I'm Portuguese, if there is a chance, I'll fight for it!! :)


CODE:
cat /var/log/pptpd-pppd.log:

ASUSWRT-Merlin RT-AC5300 386.2_0 Fri Apr 2 02:49:55 UTC 2021
[email protected]_ATOM1:/tmp/home/root# cmd="$(cat /proc/$(pidof pptpd)/cmdline |
tr '\0' ' ')"
[email protected]_ATOM1:/tmp/home/root# kill $(pidof pptpd) && sleep 3

[email protected]_ATOM1:/tmp/home/root# echo debug >> /tmp/pptpd/options.pptpd
[email protected]_ATOM1:/tmp/home/root# echo dump >> /tmp/pptpd/options.pptpd
[email protected]_ATOM1:/tmp/home/root# eval nohup $cmd >/dev/null 2>&1 &
[email protected]_ATOM1:/tmp/home/root# # force final CR
[email protected]_ATOM1:/tmp/home/root# cat /var/log/pptpd-pppd.log
Plugin pptp.so loaded.
PPTP plugin version 0.8.5 compiled for pppd-2.4.7, linux-2.6.36.4
pppd options in effect:
debug # (from /tmp/pptpd/options.pptpd)
nodetach # (from command line)
logfile /var/log/pptpd-pppd.log # (from /tmp/pptpd/options.pptpd)
minunit 10 # (from /tmp/pptpd/options.pptpd)
ifname pptp%d # (from /tmp/pptpd/options.pptpd)
dump # (from /tmp/pptpd/options.pptpd)
plugin pptp.so # (from command line)
+mschap-v2 # (from /tmp/pptpd/options.pptpd)
refuse-chap # (from /tmp/pptpd/options.pptpd)
name * # (from /tmp/pptpd/options.pptpd)
chap-secrets /tmp/pptpd/chap-secrets # (from /tmp/pptpd/options.pptpd )
pptp_client 109.51.120.71 # (from command line)
pptp_sock 6 # (from command line)
pptp_client 109.51.120.71 # (from command line)
pptp_sock 6 # (from command line)
mru 1492 # (from /tmp/pptpd/options.pptpd)
mtu 1492 # (from /tmp/pptpd/options.pptpd)
lcp-echo-failure 10 # (from /tmp/pptpd/options.pptpd)
lcp-echo-interval 6 # (from /tmp/pptpd/options.pptpd)
lcp-echo-adaptive # (from /tmp/pptpd/options.pptpd)
chapms-strip-domain # (from /tmp/pptpd/options.pptpd)
ipparam 109.51.120.71 # (from command line)
ms-dns xxx # [don't know how to print value] # (from /tmp/pptpd/optio ns.pptpd)
proxyarp # (from /tmp/pptpd/options.pptpd)
192.168.7.1:192.168.10.2 # (from command line)
ip-up-script /tmp/pptpd/ip-up # (from /tmp/pptpd/options.pptpd)
ip-down-script /tmp/pptpd/ip-down # (from /tmp/pptpd/options.pptpd )
deflate 0 # (from /tmp/pptpd/options.pptpd)
require-mppe-40 # (from /tmp/pptpd/options.pptpd)
nomppe-56 # (from /tmp/pptpd/options.pptpd)
require-mppe-128 # (from /tmp/pptpd/options.pptpd)
nomppe-stateful # (from /tmp/pptpd/options.pptpd)
using channel 1
Using interface pptp0
Connect: pptp0 <--> pptp (109.51.120.71)
sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MS-v2> <magic 0x3a 0d8c9> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <mru 1440> <magic 0x63c39c79> <pcomp> <accomp>]
sent [LCP ConfAck id=0x1 <mru 1440> <magic 0x63c39c79> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MS-v2> <magic 0x3a 0d8c9> <pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x3a0d8c9]
sent [CHAP Challenge id=0x7e <c256ba8783041653695505b506527498>, name = "*"]
rcvd [LCP EchoRep id=0x0 magic=0x63c39c79]
rcvd [CHAP Response id=0x7e <8f0ab6cb60acd51a249b7df13a1ce67d0000000000000000c51 35dbeae2d817f7580f9ecf4e00400eeea13226f40a02b00>, name = "master"]
sent [CHAP Success id=0x7e "S=CDB12F0CA0A99D9BAFEC4EC499DC751D7E4F0537 M=Access granted"]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.7.1>]
rcvd [CCP ConfReq id=0x1 <mppe +H -M +S -L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfAck id=0x1 <mppe +H -M +S -L -D -C>]
rcvd [IPCP TermAck id=0x1]
rcvd [CCP ConfAck id=0x1 <mppe +H -M +S +L -D -C>]
Received bad configure-ack: 12 06 01 00 00 60
rcvd [IPCP ConfReq id=0x1 <addr 0.0.0.0> <compress VJ 0f 01> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfNak id=0x1 <addr 192.168.10.2> <ms-dns1 192.168.7.1> <ms-dns2 192.168.7.1>]
rcvd [IPCP ConfReq id=0x2 <addr 192.168.10.2> <compress VJ 0f 01> <ms-dns1 192.168.7.1> <ms-dns2 192.168.7.1>]
sent [IPCP ConfAck id=0x2 <addr 192.168.10.2> <compress VJ 0f 01> <ms-dns1 192.168.7.1> <ms-dns2 192.168.7.1>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.7.1>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 192.168.7.1>]
Script /tmp/ppp/ip-pre-up started (pid 4831)
Script /tmp/ppp/ip-pre-up finished (pid 4831), status = 0x0
Cannot determine ethernet address for proxy ARP
local IP address 192.168.7.1
remote IP address 192.168.10.2
Script /tmp/pptpd/ip-up started (pid 4832)
Script /tmp/pptpd/ip-up finished (pid 4832), status = 0x0
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
sent [CCP ConfReq id=0x1 <mppe +H -M +S +L -D -C>]
CCP: timeout sending Config-Requests
No response to 10 echo-requests
Serial link appears to be disconnected.
Connect time 1.1 minutes.
Sent 23089 bytes, received 0 bytes.
Script /tmp/pptpd/ip-down started (pid 5013)
sent [LCP TermReq id=0x2 "Peer not responding"]
Script /tmp/pptpd/ip-down finished (pid 5013), status = 0x0
sent [LCP TermReq id=0x3 "Peer not responding"]
Connection terminated.
Modem hangup
I think the output says the same. Could you see more than router's log?
 

Krauss

Occasional Visitor
Asus Log (with previous clearence) :
CODE:
cmd="$(cat /proc/$(pidof pptpd)/cmdline | tr '\0' ' ')"
kill $(pidof pptpd) && sleep 3
echo debug >> /tmp/pptpd/options.pptpd
echo dump >> /tmp/pptpd/options.pptpd
eval nohup $cmd >/dev/null 2>&1 &
# force final CR

Apr 13 19:36:00 pptpd[3778]: MGR: Maximum of 100 connections reduced to 4, not enough IP addresses given
Apr 13 19:36:00 pptpd[3778]: accel-pptpd-0.8.5 compiled for pppd-2.4.5, linux-2.6.36.4
Apr 13 19:36:00 pptpd[3779]: MGR: Manager process started
Apr 13 19:36:00 pptpd[3779]: MGR: Maximum of 4 connections available
Apr 13 19:36:00 bcrelay[3780]: Running as child

After connection:

Apr 13 19:41:41 pptpd[4813]: CTRL: Client 109.51.120.71 control connection started
Apr 13 19:41:41 pptpd[4813]: CTRL: Starting call (launching pppd, opening GRE)
Apr 13 19:41:41 pptp[4814]: Plugin pptp.so loaded.
Apr 13 19:41:41 pptp[4814]: PPTP plugin version 0.8.5 compiled for pppd-2.4.7, linux-2.6.36.4
Apr 13 19:41:41 pptp[4814]: pppd options in effect:
Apr 13 19:41:41 pptp[4814]: debug # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: nodetach # (from command line)
Apr 13 19:41:41 pptp[4814]: logfile /var/log/pptpd-pppd.log # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: minunit 10 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: ifname pptp%d # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: dump # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: plugin pptp.so # (from command line)
Apr 13 19:41:41 pptp[4814]: +mschap-v2 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: refuse-chap # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: name * # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: chap-secrets /tmp/pptpd/chap-secrets # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: pptp_client 109.51.120.71 # (from command line)
Apr 13 19:41:41 pptp[4814]: pptp_sock 6 # (from command line)
Apr 13 19:41:41 pptp[4814]: pptp_client 109.51.120.71 # (from command line)
Apr 13 19:41:41 pptp[4814]: pptp_sock 6 # (from command line)
Apr 13 19:41:41 pptp[4814]: mru 1492 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: mtu 1492 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: lcp-echo-failure 10 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: lcp-echo-interval 6 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: lcp-echo-adaptive # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: chapms-strip-domain # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: ipparam 109.51.120.71 # (from command line)
Apr 13 19:41:41 pptp[4814]: ms-dns xxx # [don't know how to print value] # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: proxyarp # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: 192.168.7.1:192.168.10.2 # (from command line)
Apr 13 19:41:41 pptp[4814]: ip-up-script /tmp/pptpd/ip-up # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: ip-down-script /tmp/pptpd/ip-down # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: deflate 0 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: require-mppe-40 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: nomppe-56 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: require-mppe-128 # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: nomppe-stateful # (from /tmp/pptpd/options.pptpd)
Apr 13 19:41:41 pptp[4814]: pppd 2.4.7 started by Kraussvan, uid 0
Apr 13 19:41:41 pptp[4814]: Using interface pptp0
Apr 13 19:41:41 pptp[4814]: Connect: pptp0 <--> pptp (109.51.120.71)
Apr 13 19:41:41 pptp[4814]: Received bad configure-ack: 12 06 01 00 00 60
Apr 13 19:41:44 lldpd[350]: removal request for address of 192.168.7.1%15, but no knowledge of it
Apr 13 19:41:44 pptp[4814]: Cannot determine ethernet address for proxy ARP
Apr 13 19:41:44 pptp[4814]: local IP address 192.168.7.1
Apr 13 19:41:44 pptp[4814]: remote IP address 192.168.10.2
Apr 13 19:41:46 kernel: ppp: compressor dropped pkt
Apr 13 19:41:46 kernel: ppp: compressor dropped pkt
Apr 13 19:41:46 kernel: ppp: compressor dropped pkt
Apr 13 19:41:46 kernel: ppp: compressor dropped pkt
.......
Apr 13 19:42:09 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:10 kernel: ppp: compressor dropped pkt
Apr 13 19:42:11 pptp[4814]: CCP: timeout sending Config-Requests
Apr 13 19:42:15 kernel: ppp: compressor dropped pkt
Apr 13 19:42:15 kernel: ppp: compressor dropped pkt
Apr 13 19:42:16 kernel: ppp: compressor dropped pkt
Apr 13 19:42:16 kernel: ppp: compressor dropped pkt
Apr 13 19:42:16 kernel: ppp: compressor dropped pkt
Apr 13 19:42:16 kernel: ppp: compressor dropped pkt
.......
Apr 13 19:42:40 kernel: ppp: compressor dropped pkt
Apr 13 19:42:40 kernel: ppp: compressor dropped pkt
Apr 13 19:42:40 kernel: ppp: compressor dropped pkt
Apr 13 19:42:40 kernel: ppp: compressor dropped pkt
Apr 13 19:42:45 dnsmasq-dhcp[436]: DHCPREQUEST(br0) 192.168.7.167 5c:5f:67:b8:11:6d
Apr 13 19:42:45 dnsmasq-dhcp[436]: DHCPACK(br0) 192.168.7.167 5c:5f:67:b8:11:6d COMP_DELL_PCT_W50_PR
Apr 13 19:42:45 kernel: ppp: compressor dropped pkt
Apr 13 19:42:45 kernel: ppp: compressor dropped pkt
Apr 13 19:42:45 kernel: ppp: compressor dropped pkt
.....
Apr 13 19:42:46 kernel: ppp: compressor dropped pkt
Apr 13 19:42:46 kernel: ppp: compressor dropped pkt
Apr 13 19:42:46 kernel: ppp: compressor dropped pkt
Apr 13 19:42:47 pptp[4814]: No response to 10 echo-requests
Apr 13 19:42:47 pptp[4814]: Serial link appears to be disconnected.
Apr 13 19:42:47 pptp[4814]: Connect time 1.1 minutes.
Apr 13 19:42:47 pptp[4814]: Sent 23089 bytes, received 0 bytes.
Apr 13 19:42:47 lldpd[350]: removal request for address of 192.168.10.2%15, but no knowledge of it
Apr 13 19:42:47 bcrelay[3780]: ignored ENETDOWN from sendto(), a network interface was going down?
Apr 13 19:42:47 bcrelay[3780]: ignored ENETDOWN from sendto(), a network interface was going down?
Apr 13 19:42:53 pptp[4814]: Connection terminated.
Apr 13 19:42:53 kernel: EMF_ERROR: Interface pptp0 doesn't exist
Apr 13 19:42:53 pptp[4814]: Modem hangup
Apr 13 19:42:53 pptp[4814]: Exit.
Apr 13 19:42:53 pptpd[4813]: CTRL: Client pppd TERM sending
Apr 13 19:42:53 pptpd[4813]: CTRL: Client pppd finish wait
Apr 13 19:42:54 pptpd[4813]: CTRL: EOF or bad error reading ctrl packet length.
Apr 13 19:42:54 pptpd[4813]: CTRL: couldn't read packet header (exit)
Apr 13 19:42:54 pptpd[4813]: CTRL: Fatal error reading control message in disconnect sequence
Apr 13 19:42:54 pptpd[4813]: CTRL: Client 109.51.120.71 control connection finished

Any idea about wht's wrong?

Thank you

Kr
 

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