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MikroTik App
 
Cartman
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Posts: 106
Joined: Wed Jul 23, 2008 6:14 pm

pptp connection cannot be established

Thu Dec 08, 2011 2:45 pm

Hello world !

I have a RB/1000, ROS4.x running for 2+ years not.
It is working just fine, but suddenly it was not reachable from external network.
The device is located behind a loadbalancer. To reach it it builds a pptp tunnel
to a central server. This worked for a long time. Since a few days it produces
errors in the syslog when trying to bring up the tunnel
Dec 8 13:27:30 i59F7802A pptp,ppp,info miktik: MT-1: initializing...
Dec 8 13:27:30 i59F7802A pptp,ppp,info miktik: MT-1: dialing...
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: sent Start-Control-Connection-Request to 1.2.3.4
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: protocol-version=0x0100
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: framing-capabilities=2
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: bearer-capabilities=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: maximum-channels=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: firmware-revision=1
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: host-name=MT-1-mk
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: vendor-name=MikroTik
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: rcvd Start-Control-Connection-Reply from 1.2.3.4
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: protocol-version=0x0100
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: result-code=1
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: error-code=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: framing-capabilities=2
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: bearer-capabilities=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: maximum-channels=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: firmware-revision=1
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: host-name=MikroTik
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: vendor-name=MikroTik
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: sent Outgoing-Call-Request to 1.2.3.4
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: call-id=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: call-serial-number=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: minimum-bps=2400
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: maximum-bps=10000000
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: bearer-type=3
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: framing-type=2
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: packet-recv-window-size=100
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: packet-processing-delay=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: phone-number-length=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: phone-number=
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: subaddress=
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: rcvd Outgoing-Call-Reply from 1.2.3.4
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: call-id=49598
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: peers-call-id=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: result-code=1
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: error-code=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: cause-code=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: connect-speed=100000
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: packet-recv-window-size=100
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: packet-processing-delay=0
Dec 8 13:27:30 i59F7802A pptp,debug,packet miktik: physical-channel-id=0
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: LCP lowerup
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent LCP ConfReq id=0x3e
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <mru 1452>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <magic 0xc0c9d41>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: LCP open
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd LCP ConfReq id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <mru 1452>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <magic 0x171ccc58>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <auth mschap2>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent LCP ConfAck id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <mru 1452>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <magic 0x171ccc58>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <auth mschap2>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd LCP ConfAck id=0x3e
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <mru 1452>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <magic 0xc0c9d41>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: LCP opened
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd CHAP Challenge id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <challenge len=10>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <name MikroTik>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent CHAP Response id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <response len=31>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <name MT-1>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd CHAP Success id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: S=DDA72FF8B61ED1863570B832F21947B7C9A0FA05
Dec 8 13:27:30 i59F7802A pptp,ppp,info miktik: MT-1: authenticated
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: IPCP lowerup
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent IPCP ConfReq id=0xd4
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <addr 10.32.34.1>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: IPCP open
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: BCP open
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: CCP lowerup
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: CCP open
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd IPCP ConfReq id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <addr 10.32.1.1>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent IPCP ConfAck id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <addr 10.32.1.1>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd CCP ConfReq id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <mppe 1000060>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent CCP ConfReq id=0xa6
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent CCP ConfRej id=0x1
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <mppe 1000060>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd IPCP ConfAck id=0xd4
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: <addr 10.32.34.1>
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: IPCP opened
Dec 8 13:27:30 i59F7802A pptp,ppp,info miktik: MT-1: connected
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd CCP ConfAck id=0xa6
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd CCP ConfReq id=0x2
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent CCP ConfAck id=0x2
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: CCP opened
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: CCP close
Dec 8 13:27:30 i59F7802A pptp,ppp,debug miktik: MT-1: CCP closed
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent CCP TermReq id=0xa7
Dec 8 13:27:30 i59F7802A pptp,ppp,debug,packet miktik: No compression negotiated
Dec 8 13:27:31 i59F7802A pptp,ppp,debug,packet miktik: MT-1: rcvd LCP TermReq id=0x2
Dec 8 13:27:31 i59F7802A pptp,ppp,debug,packet miktik: Encryption negotiation rejected
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: LCP closed
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: CCP lowerdown
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: BCP lowerdown
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: BCP down event in starting state
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: IPCP lowerdown
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: IPCP closed
Dec 8 13:27:31 i59F7802A pptp,ppp,debug,packet miktik: MT-1: sent LCP TermAck id=0x2
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: LCP lowerdown
Dec 8 13:27:31 i59F7802A pptp,ppp,info miktik: MT-1: terminating... - disconnected
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: LCP lowerdown
Dec 8 13:27:31 i59F7802A pptp,ppp,debug miktik: MT-1: LCP down event in starting state
Dec 8 13:27:31 i59F7802A pptp,ppp,info miktik: MT-1: disconnected
hope this contains all information on the error.
There were no changes in the configuration, only if someone hacked it.
The pptp server is located on a RB532A/ROS3.3
I assume the problem on the RB1000, the profile is used by ~40 Mikrotiks and this
one is the only with encryption rejected.

Is there a way to open a connection to this board?
It is located about 6 driving hours from my position :(

I already tried to set up a second profile and tested all possibilities of encrption/compression settings, without success.

Any ideas ?

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