Hello. I have some annoying problem with communication between Mikrotik (RB 450G 5.21) and Cisco 1841(12.4(25f)) on 3G link.
[admin@MikroTik] >
echo: pptp,ppp,info pptp-out1: initializing…
echo: pptp,ppp,info pptp-out1: dialing…
echo: pptp,debug,packet sent Start-Control-Connection-Request to 89.89.89.89
echo: pptp,debug,packet protocol-version=0x0100
echo: pptp,debug,packet framing-capabilities=2
echo: pptp,debug,packet bearer-capabilities=0
echo: pptp,debug,packet maximum-channels=0
echo: pptp,debug,packet firmware-revision=1
echo: pptp,debug,packet host-name=MikroTik
echo: pptp,debug,packet vendor-name=MikroTik
[admin@MikroTik] >
echo: pptp,debug,packet rcvd Start-Control-Connection-Reply from 89.89.89.89
echo: pptp,debug,packet protocol-version=0x0100
[admin@MikroTik] >
(23 messages discarded)
echo: pptp,debug,packet result-code=1
echo: pptp,debug,packet error-code=0
echo: pptp,debug,packet cause-code=0
echo: pptp,debug,packet connect-speed=64000
echo: pptp,debug,packet packet-recv-window-size=16
echo: pptp,debug,packet packet-processing-delay=0
echo: pptp,debug,packet physical-channel-id=0
echo: pptp,ppp,debug pptp-out1: LCP lowerup
echo: pptp,ppp,debug,packet pptp-out1: sent LCP ConfReq id=0x28
echo: pptp,ppp,debug,packet <mru 1460>
echo: pptp,ppp,debug,packet <magic 0x3c231da0>
echo: pptp,ppp,debug pptp-out1: LCP open
[admin@MikroTik] >
[admin@MikroTik] >
echo: pptp,debug,packet rcvd Call-Disconnect-Notify from 89.89.89.89
echo: pptp,debug,packet call-id=2560
echo: pptp,debug,packet result-code=1
echo: pptp,debug,packet error-code=0
echo: pptp,debug,packet cause-code=33
echo: pptp,debug,packet call-statistics=
echo: pptp,ppp,debug pptp-out1: LCP lowerdown
echo: pptp,ppp,info pptp-out1: terminating… - disconnected
echo: pptp,ppp,debug pptp-out1: LCP lowerdown
echo: pptp,ppp,debug pptp-out1: LCP down event in starting state
echo: pptp,ppp,info pptp-out1: disconnected
Cisco:
Dec 3 09:44:29.684: ppp12 PPP: Send Message[Dynamic Bind Response]
Dec 3 09:44:29.684: ppp12 PPP: Using vpn set call direction
Dec 3 09:44:29.684: ppp12 PPP: Treating connection as a callin
Dec 3 09:44:29.684: ppp12 PPP: Session handle[C100001D] Session id[12]
Dec 3 09:44:29.684: ppp12 PPP: Phase is ESTABLISHING, Passive Open
Dec 3 09:44:29.684: ppp12 LCP: State is Listen
Dec 3 09:44:29.796: ppp12 LCP: I CONFREQ [Listen] id 52 len 14
Dec 3 09:44:29.796: ppp12 LCP: MRU 1460 (0x010405B4)
Dec 3 09:44:29.796: ppp12 LCP: MagicNumber 0x6E3508C0 (0x05066E3508C0)
Dec 3 09:44:29.800: ppp12 LCP: O CONFREQ [Listen] id 1 len 18
Central#
Dec 3 09:44:29.800: ppp12 LCP: MRU 1420 (0x0104058C)
Dec 3 09:44:29.800: ppp12 LCP: AuthProto PAP (0x0304C023)
Dec 3 09:44:29.800: ppp12 LCP: MagicNumber 0x2157711A (0x05062157711A)
Dec 3 09:44:29.800: ppp12 LCP: O CONFACK [Listen] id 52 len 14
Dec 3 09:44:29.800: ppp12 LCP: MRU 1460 (0x010405B4)
Dec 3 09:44:29.800: ppp12 LCP: MagicNumber 0x6E3508C0 (0x05066E3508C0)
Central#debug ppp negotiation
Dec 3 09:44:31.792: ppp12 LCP: Timeout: State ACKsent
Dec 3 09:44:31.792: ppp12 LCP: O CONFREQ [ACKsent] id 2 len 18
Dec 3 09:44:31.792: ppp12 LCP: MRU 1420 (0x0104058C)
Dec 3 09:44:31.792: ppp12 LCP: AuthProto PAP (0x0304C023)
Dec 3 09:44:31.792: ppp12 LCP: MagicNumber 0x2157711A (0x05062157711A)
Between reconnections I see active pptp session on Cisco:
Central#sh vpdn tunnel pptp all id 16
PPTP Tunnel Information Total tunnels 7 sessions 7
Tunnel id 16, 1 active sessions
Tunnel state is estabd, time since change 00:00:14
Remote tunnel name is MikroTik
Internet Address 85.26.108.188, port 44058
Local tunnel name is Central
Internet Address 89.89.89.89, port 1723
VPDN group: 1
8 packets sent, 0 received, 172 bytes sent, 0 received
Last clearing of “show vpdn” counters never
Central#
But after few seconds cisco closed that tunnel… I have no idea why it’s happening and I need help.