I’ve got a Win2003 machine on one side and RouterOS on another. There is a routing service running on Win2003 with PPTP server. The PPTP client is running on RouterOS. Sometimes tunnel feels okay, but sometimes it is a piece of crap. Here’s a part of log.
16:34:52 pptp,ppp,info pptp-client_askar: initializing…
16:34:52 pptp,ppp,info pptp-client_askar: connecting…
16:34:52 pptp,ppp,info pptp-client_askar: authenticated
16:34:54 pptp,ppp,info pptp-client_askar: using encoding - MPPE128 stateless
16:34:54 pptp,ppp,info pptp-client_askar: connected
16:39:02 pptp,ppp,info pptp-client_askar: CCP lost compression got out of sync: disabling compression
16:39:02 pptp,ppp,info pptp-client_askar: terminating… - Encryption got out of sync
16:39:02 pptp,ppp,info pptp-client_askar: disconnected
16:39:02 pptp,ppp,info pptp-client_askar: initializing…
16:39:02 pptp,ppp,info pptp-client_askar: connecting…
16:39:02 pptp,ppp,info pptp-client_askar: authenticated
16:39:04 pptp,ppp,info pptp-client_askar: using encoding - MPPE128 stateless
16:39:04 pptp,ppp,info pptp-client_askar: connected
16:43:12 pptp,ppp,info pptp-client_askar: CCP lost compression got out of sync: disabling compression
16:43:12 pptp,ppp,info pptp-client_askar: terminating… - Encryption got out of sync
16:43:12 pptp,ppp,info pptp-client_askar: disconnected
16:43:12 pptp,ppp,info pptp-client_askar: initializing…
16:43:12 pptp,ppp,info pptp-client_askar: connecting…
16:43:24 pptp,ppp,info pptp-client_askar: authenticated
16:43:26 pptp,ppp,info pptp-client_askar: using encoding - MPPE128 stateless
16:43:26 pptp,ppp,info pptp-client_askar: connected
Everytime tunnel terminates with same problem: “CCP lost compression got out of sync”. Here’s my PPP profiles list.
Flags: * - default
0 * name=“default” remote-ipv6-prefix-pool=none use-ipv6=yes use-mpls=default use-compression=default use-encryption=default only-one=default change-tcp-mss=yes
use-upnp=default address-list=“” on-up=“” on-down=“”1 * name=“default-encryption” remote-ipv6-prefix-pool=*0 use-ipv6=no use-mpls=default use-compression=no use-encryption=required only-one=default
change-tcp-mss=yes use-upnp=default address-list=“” on-up=“” on-down=“”
The PPTP client is running “default-encryption” profile, and there’s no compression. Here’s its definitions.
Flags: X - disabled, R - running
0 R name=“pptp-client_askar” max-mtu=1450 max-mru=1450 mrru=1600 connect-to=109.167.193.75 user=“**" password="”
profile=default-encryption keepalive-timeout=60 add-default-route=no dial-on-demand=no allow=mschap2
What’s wrong with my tunnel?