Date: Wed, 20 Aug 2003 22:06:25 -0700 (PDT) From: Jeff Leary <quixoticsycophant@yahoo.com> To: freebsd-questions@freebsd.org Subject: Intermittent failures with mpd VPN Message-ID: <20030821050625.71488.qmail@web13114.mail.yahoo.com>
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Hi,
I have a 4.5-release firewall / VPN server which has been humming along
without a glitch since 4.5-release first came out.
I have applied only relevant patches during this time since this box's
only job is ipfilter, ipnat, and mpd.
Just recently there's been this intermittent behavior of not being able
to login -- but if you keep trying you'll eventually get in after 4 or
5
attempts.
Failed logins look like
PPTP connection from 1.2.3.4:1705
pptp0: attached to connection with 1.2.3.4:1705
[pptp0] IFACE: Open event
[pptp0] IPCP: Open event
[pptp0] IPCP: state change Initial --> Starting
[pptp0] IPCP: LayerStart
[pptp0] IPCP: Open event
[pptp0] bundle: OPEN event in state CLOSED
[pptp0] opening link "pptp0"...
[pptp0] link: OPEN event
[pptp0] LCP: Open event
[pptp0] LCP: state change Initial --> Starting
[pptp0] LCP: LayerStart
[pptp0] device: OPEN event in state DOWN
[pptp0] attaching to peer's outgoing call
[pptp0] device is now in state OPENING
[pptp0] device: UP event in state OPENING
[pptp0] device is now in state UP
[pptp0] link: UP event
[pptp0] link: origination is remote
[pptp0] LCP: Up event
[pptp0] LCP: state change Starting --> Req-Sent
[pptp0] LCP: phase shift DEAD --> ESTABLISH
[pptp0] LCP: SendConfigReq #50
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
pptp0-0: ignoring SetLinkInfo
[pptp0] LCP: rec'd Configure Request #0 link 0 (Req-Sent)
MAGICNUM 3b27257f
PROTOCOMP
ACFCOMP
CALLBACK
Not supported
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigRej #0
CALLBACK
[pptp0] LCP: SendConfigReq #51
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: rec'd Configure Request #1 link 0 (Req-Sent)
MAGICNUM 3b27257f
PROTOCOMP
ACFCOMP
CALLBACK
Not supported
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigRej #1
CALLBACK
[pptp0] LCP: SendConfigReq #52
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: rec'd Configure Request #2 link 0 (Req-Sent)
MAGICNUM 3b27257f
PROTOCOMP
ACFCOMP
CALLBACK
Not supported
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigRej #2
CALLBACK
[pptp0] LCP: SendConfigReq #53
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: SendConfigReq #54
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: rec'd Configure Request #3 link 0 (Req-Sent)
MAGICNUM 3b27257f
PROTOCOMP
ACFCOMP
CALLBACK
Not supported
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigRej #3
CALLBACK
[pptp0] LCP: SendConfigReq #55
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: SendConfigReq #56
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: rec'd Configure Request #4 link 0 (Req-Sent)
MAGICNUM 3b27257f
PROTOCOMP
ACFCOMP
CALLBACK
Not supported
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigRej #4
CALLBACK
[pptp0] LCP: SendConfigReq #57
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: SendConfigReq #58
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 88c318a0
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: rec'd Configure Request #5 link 0 (Req-Sent)
MAGICNUM 3b27257f
PROTOCOMP
ACFCOMP
CALLBACK
Not supported
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: not converging
[pptp0] LCP: parameter negotiation failed
[pptp0] LCP: state change Req-Sent --> Stopped
[pptp0] LCP: LayerFinish
[pptp0] device: CLOSE event in state UP
pptp0-0: clearing call
pptp0-0: killing channel
[pptp0] PPTP call terminated
[pptp0] IFACE: Close event
[pptp0] IPCP: Close event
[pptp0] IPCP: state change Starting --> Initial
[pptp0] IPCP: LayerFinish
[pptp0] IFACE: Close event
pptp0: closing connection with 1.2.3.4:1705
[pptp0] IFACE: Close event
[pptp0] device is now in state CLOSING
[pptp0] bundle: CLOSE event in state OPENED
[pptp0] closing link "pptp0"...
[pptp0] device: DOWN event in state CLOSING
[pptp0] device is now in state DOWN
[pptp0] link: CLOSE event
[pptp0] LCP: Close event
[pptp0] LCP: state change Stopped --> Closed
[pptp0] device: DOWN event in state DOWN
[pptp0] device is now in state DOWN
[pptp0] link: DOWN event
[pptp0] LCP: Down event
[pptp0] LCP: state change Closed --> Initial
[pptp0] LCP: phase shift ESTABLISH --> DEAD
[pptp0] link: DOWN event
[pptp0] LCP: Down event
pptp0: killing connection with 1.2.3.4:1705
successful logins look like
PPTP connection from 1.2.3.4:2738
pptp0: attached to connection with 1.2.3.4:2738
[pptp0] IFACE: Open event
[pptp0] IPCP: Open event
[pptp0] IPCP: state change Initial --> Starting
[pptp0] IPCP: LayerStart
[pptp0] IPCP: Open event
[pptp0] bundle: OPEN event in state CLOSED
[pptp0] opening link "pptp0"...
[pptp0] link: OPEN event
[pptp0] LCP: Open event
[pptp0] LCP: state change Initial --> Starting
[pptp0] LCP: LayerStart
[pptp0] device: OPEN event in state DOWN
[pptp0] attaching to peer's outgoing call
[pptp0] device is now in state OPENING
[pptp0] device: UP event in state OPENING
[pptp0] device is now in state UP
[pptp0] link: UP event
[pptp0] link: origination is remote
[pptp0] LCP: Up event
[pptp0] LCP: state change Starting --> Req-Sent
[pptp0] LCP: phase shift DEAD --> ESTABLISH
[pptp0] LCP: SendConfigReq #59
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 89dadabc
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
MP SHORTSEQ
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
pptp0-0: ignoring SetLinkInfo
[pptp0] LCP: rec'd Configure Request #0 link 0 (Req-Sent)
MAGICNUM 47f55acf
PROTOCOMP
ACFCOMP
CALLBACK
Not supported
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigRej #0
CALLBACK
[pptp0] LCP: rec'd Configure Reject #59 link 0 (Req-Sent)
MP SHORTSEQ
[pptp0] LCP: SendConfigReq #60
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 89dadabc
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: rec'd Configure Request #1 link 0 (Req-Sent)
MAGICNUM 47f55acf
PROTOCOMP
ACFCOMP
MP MRRU 1614
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigNak #1
MP MRRU 1600
[pptp0] LCP: rec'd Configure Ack #60 link 0 (Req-Sent)
ACFCOMP
PROTOCOMP
MRU 1500
MAGICNUM 89dadabc
AUTHPROTO CHAP MSOFTv2
MP MRRU 1600
ENDPOINTDISC [802.1] 00 10 4b 06 de cf
[pptp0] LCP: state change Req-Sent --> Ack-Rcvd
[pptp0] LCP: rec'd Configure Request #2 link 0 (Ack-Rcvd)
MAGICNUM 47f55acf
PROTOCOMP
ACFCOMP
MP MRRU 1600
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: SendConfigAck #2
MAGICNUM 47f55acf
PROTOCOMP
ACFCOMP
MP MRRU 1600
ENDPOINTDISC [LOCAL] <MAC address snipped>
[pptp0] LCP: state change Ack-Rcvd --> Opened
[pptp0] LCP: phase shift ESTABLISH --> AUTHENTICATE
[pptp0] LCP: auth: peer wants nothing, I want CHAP
[pptp0] CHAP: sending CHALLENGE
[pptp0] LCP: LayerUp
[pptp0] LCP: rec'd Ident #3 link 0 (Opened)
MESG: MSRASV5.00
[pptp0] LCP: rec'd Ident #4 link 0 (Opened)
MESG: MSRAS-1-ARDA
[pptp0] CHAP: rec'd RESPONSE #1
Name: "SOMEDOMAIN\somename"
Peer name: "somename"
Response is valid
[pptp0] CHAP: sending SUCCESS
[pptp0] LCP: authorization successful
[pptp0] LCP: phase shift AUTHENTICATE --> NETWORK
[pptp0] up: 1 link, total bandwidth 64000 bps
[pptp0] IPCP: Up event
[pptp0] IPCP: state change Starting --> Req-Sent
[pptp0] IPCP: SendConfigReq #3
IPADDR 192.168.1.1
COMPPROTO VJCOMP, 16 comp. channels, no comp-cid
[pptp0] error writing len 20 frame to bypass: Network is down
[pptp0] CCP: Open event
[pptp0] CCP: state change Initial --> Starting
[pptp0] CCP: LayerStart
[pptp0] CCP: Up event
[pptp0] CCP: state change Starting --> Req-Sent
[pptp0] CCP: SendConfigReq #2
MPPC
0x01000040: MPPE, 128 bit, stateless
[pptp0] error writing len 14 frame to bypass: Network is down
pptp0-0: ignoring SetLinkInfo
[pptp0] CCP: rec'd Configure Request #5 link 0 (Req-Sent)
MPPC
0x01000041: MPPC MPPE, 128 bit, stateless
[pptp0] CCP: SendConfigNak #5
MPPC
0x01000040: MPPE, 128 bit, stateless
[pptp0] IPCP: rec'd Configure Request #6 link 0 (Req-Sent)
IPADDR 0.0.0.0
NAKing with 192.168.1.206
[pptp0] IPCP: SendConfigNak #6
IPADDR 192.168.1.206
[pptp0] CCP: rec'd Configure Request #7 link 0 (Req-Sent)
MPPC
0x01000040: MPPE, 128 bit, stateless
[pptp0] CCP: SendConfigAck #7
MPPC
0x01000040: MPPE, 128 bit, stateless
[pptp0] CCP: state change Req-Sent --> Ack-Sent
[pptp0] IPCP: rec'd Configure Request #8 link 0 (Req-Sent)
IPADDR 192.168.1.206
192.168.1.206 is OK
[pptp0] IPCP: SendConfigAck #8
IPADDR 192.168.1.206
[pptp0] IPCP: state change Req-Sent --> Ack-Sent
[pptp0] IPCP: SendConfigReq #4
IPADDR 192.168.1.1
COMPPROTO VJCOMP, 16 comp. channels, no comp-cid
[pptp0] CCP: SendConfigReq #3
MPPC
0x01000040: MPPE, 128 bit, stateless
[pptp0] IPCP: rec'd Configure Reject #4 link 0 (Ack-Sent)
COMPPROTO VJCOMP, 16 comp. channels, no comp-cid
[pptp0] IPCP: SendConfigReq #5
IPADDR 192.168.1.1
[pptp0] CCP: rec'd Configure Ack #3 link 0 (Ack-Sent)
MPPC
0x01000040: MPPE, 128 bit, stateless
[pptp0] CCP: state change Ack-Sent --> Opened
[pptp0] CCP: LayerUp
Compress using: MPPE, 128 bit, stateless
Decompress using: MPPE, 128 bit, stateless
[pptp0] IPCP: rec'd Configure Ack #5 link 0 (Ack-Sent)
IPADDR 192.168.1.1
[pptp0] IPCP: state change Ack-Sent --> Opened
[pptp0] IPCP: LayerUp
192.168.1.1 -> 192.168.1.206
[pptp0] IFACE: Up event
[pptp0] exec: /sbin/ifconfig ng0 192.168.1.1 192.168.1.206 netmask
0xffffffff -link0
[pptp0] exec: /usr/sbin/arp -s 192.168.1.206 0:10:4b:6:de:cf pub
[pptp0] IFACE: Up event
One difference being repeated cycles of "CALLBACK not supported" for
the failed login and only one instance of "CALLBACK not supported"
for the sucessful login.
The two attempts shown above were 5 minutes apart with absolutely no
changes being made to the client or server.
The generic reason here is a hardware failure. Indeed, this box was
someone's workstation for a couple years before it became a VPN server.
However, I am hoping in a very serious way that there is another
explanation. Any ideas?
Thanks,
Jeff
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