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linktree Topic: PPTP Problems with Microsoft VPN Client
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Topic: PPTP Problems with Microsoft VPN Client  (Read 2113 times)
« on: October 03, 2007, 17:31:46 »
aNt1X *
Posts: 4
My network topology is this:

LAN 192.168.0.X/24 <<--->> Netgear DG834Gv3 <<-----internet----->> m0n0wall <<----192.168.1.X/24

I'm trying to connect some clients from the 192.168.0.X LAN to the 192.168.1.X LAN.

I found that the PPTP VPN is successful only for the first client that tries to connect.

Other clients hangs at "Verifying Username and Password".

For the faulty connection i see the following log on the m0n0wall:

Code:
Oct 3 15:08:53 mpd: pptp0: killing connection AAA.BBB.CCC.DDD:1504
Oct 3 15:08:53 mpd: [pt0] LCP: Down event
Oct 3 15:08:53 mpd: [pt0] link: DOWN event
Oct 3 15:08:53 mpd: [pt0] device is now in state DOWN
Oct 3 15:08:53 mpd: [pt0] device: DOWN event in state DOWN
Oct 3 15:08:53 mpd: [pt0] LCP: phase shift ESTABLISH --> DEAD
Oct 3 15:08:53 mpd: [pt0] LCP: state change Closed --> Initial
Oct 3 15:08:53 mpd: [pt0] LCP: Down event
Oct 3 15:08:53 mpd: [pt0] link: DOWN event
Oct 3 15:08:53 mpd: [pt0] device is now in state DOWN
Oct 3 15:08:53 mpd: [pt0] device: DOWN event in state CLOSING
Oct 3 15:08:53 mpd: [pt0] LCP: state change Stopped --> Closed
Oct 3 15:08:53 mpd: [pt0] LCP: Close event
Oct 3 15:08:53 mpd: [pt0] link: CLOSE event
Oct 3 15:08:53 mpd: [pt0] device is now in state CLOSING
Oct 3 15:08:53 mpd: [pt0] device: CLOSE event in state CLOSING
Oct 3 15:08:53 mpd: [pt0] closing link "pt0"...
Oct 3 15:08:52 mpd: [pt0] bundle: CLOSE event in state OPENED
Oct 3 15:08:52 mpd: [pt0] device is now in state CLOSING
Oct 3 15:08:52 mpd: [pt0] IFACE: Close event
Oct 3 15:08:52 mpd: pptp0: closing connection with AAA.BBB.CCC.DDD:1504
Oct 3 15:08:52 mpd: [pt0] IFACE: Close event
Oct 3 15:08:52 mpd: [pt0] IPCP: LayerFinish
Oct 3 15:08:52 mpd: [pt0] IPCP: state change Starting --> Initial
Oct 3 15:08:52 mpd: [pt0] IPCP: Close event
Oct 3 15:08:52 mpd: [pt0] IFACE: Close event
Oct 3 15:08:52 mpd: [pt0] PPTP call terminated
Oct 3 15:08:52 mpd: pptp0-0: killing channel
Oct 3 15:08:52 mpd: pptp0-0: clearing call
Oct 3 15:08:52 mpd: [pt0] device: CLOSE event in state UP
Oct 3 15:08:52 mpd: [pt0] LCP: LayerFinish
Oct 3 15:08:52 mpd: [pt0] LCP: parameter negotiation failed
Oct 3 15:08:52 mpd: [pt0] LCP: LayerFinish
Oct 3 15:08:52 mpd: [pt0] LCP: state change Req-Sent --> Stopped
Oct 3 15:08:50 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:50 mpd: MP SHORTSEQ
Oct 3 15:08:50 mpd: MP MRRU 1600
Oct 3 15:08:50 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:50 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:50 mpd: MRU 1500
Oct 3 15:08:50 mpd: PROTOCOMP
Oct 3 15:08:50 mpd: ACFCOMP
Oct 3 15:08:50 mpd: [pt0] LCP: SendConfigReq #125
Oct 3 15:08:48 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:48 mpd: MP SHORTSEQ
Oct 3 15:08:48 mpd: MP MRRU 1600
Oct 3 15:08:48 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:48 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:48 mpd: MRU 1500
Oct 3 15:08:48 mpd: PROTOCOMP
Oct 3 15:08:48 mpd: ACFCOMP
Oct 3 15:08:48 mpd: [pt0] LCP: SendConfigReq #124
Oct 3 15:08:46 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:46 mpd: MP SHORTSEQ
Oct 3 15:08:46 mpd: MP MRRU 1600
Oct 3 15:08:46 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:46 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:46 mpd: MRU 1500
Oct 3 15:08:46 mpd: PROTOCOMP
Oct 3 15:08:46 mpd: ACFCOMP
Oct 3 15:08:46 mpd: [pt0] LCP: SendConfigReq #123
Oct 3 15:08:44 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:44 mpd: MP SHORTSEQ
Oct 3 15:08:44 mpd: MP MRRU 1600
Oct 3 15:08:44 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:44 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:44 mpd: MRU 1500
Oct 3 15:08:44 mpd: PROTOCOMP
Oct 3 15:08:44 mpd: ACFCOMP
Oct 3 15:08:44 mpd: [pt0] LCP: SendConfigReq #122
Oct 3 15:08:42 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:42 mpd: MP SHORTSEQ
Oct 3 15:08:42 mpd: MP MRRU 1600
Oct 3 15:08:42 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:42 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:42 mpd: MRU 1500
Oct 3 15:08:42 mpd: PROTOCOMP
Oct 3 15:08:42 mpd: ACFCOMP
Oct 3 15:08:42 mpd: [pt0] LCP: SendConfigReq #121
Oct 3 15:08:40 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:40 mpd: MP SHORTSEQ
Oct 3 15:08:40 mpd: MP MRRU 1600
Oct 3 15:08:40 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:40 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:40 mpd: MRU 1500
Oct 3 15:08:40 mpd: PROTOCOMP
Oct 3 15:08:40 mpd: ACFCOMP
Oct 3 15:08:40 mpd: [pt0] LCP: SendConfigReq #120
Oct 3 15:08:38 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:38 mpd: MP SHORTSEQ
Oct 3 15:08:38 mpd: MP MRRU 1600
Oct 3 15:08:38 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:38 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:38 mpd: MRU 1500
Oct 3 15:08:38 mpd: PROTOCOMP
Oct 3 15:08:38 mpd: ACFCOMP
Oct 3 15:08:38 mpd: [pt0] LCP: SendConfigReq #119
Oct 3 15:08:36 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:36 mpd: MP SHORTSEQ
Oct 3 15:08:36 mpd: MP MRRU 1600
Oct 3 15:08:36 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:36 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:36 mpd: MRU 1500
Oct 3 15:08:36 mpd: PROTOCOMP
Oct 3 15:08:36 mpd: ACFCOMP
Oct 3 15:08:36 mpd: [pt0] LCP: SendConfigReq #118
Oct 3 15:08:34 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:34 mpd: MP SHORTSEQ
Oct 3 15:08:34 mpd: MP MRRU 1600
Oct 3 15:08:34 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:34 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:34 mpd: MRU 1500
Oct 3 15:08:34 mpd: PROTOCOMP
Oct 3 15:08:34 mpd: ACFCOMP
Oct 3 15:08:34 mpd: [pt0] LCP: SendConfigReq #117
Oct 3 15:08:33 mpd: pptp0-0: ignoring SetLinkInfo
Oct 3 15:08:32 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:08:32 mpd: MP SHORTSEQ
Oct 3 15:08:32 mpd: MP MRRU 1600
Oct 3 15:08:32 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:08:32 mpd: MAGICNUM eb0dfdd9
Oct 3 15:08:32 mpd: MRU 1500
Oct 3 15:08:32 mpd: PROTOCOMP
Oct 3 15:08:32 mpd: ACFCOMP
Oct 3 15:08:32 mpd: [pt0] LCP: SendConfigReq #116
Oct 3 15:08:32 mpd: [pt0] LCP: phase shift DEAD --> ESTABLISH
Oct 3 15:08:32 mpd: [pt0] LCP: state change Starting --> Req-Sent
Oct 3 15:08:32 mpd: [pt0] LCP: Up event
Oct 3 15:08:32 mpd: [pt0] link: origination is remote
Oct 3 15:08:32 mpd: [pt0] link: UP event
Oct 3 15:08:32 mpd: [pt0] device is now in state UP
Oct 3 15:08:32 mpd: [pt0] device: UP event in state OPENING
Oct 3 15:08:32 mpd: [pt0] device is now in state OPENING
Oct 3 15:08:32 mpd: [pt0] attaching to peer's outgoing call
Oct 3 15:08:32 mpd: [pt0] device: OPEN event in state DOWN
Oct 3 15:08:32 mpd: [pt0] LCP: LayerStart
Oct 3 15:08:32 mpd: [pt0] LCP: state change Initial --> Starting
Oct 3 15:08:32 mpd: [pt0] LCP: Open event
Oct 3 15:08:32 mpd: [pt0] link: OPEN event
Oct 3 15:08:32 mpd: [pt0] opening link "pt0"...
Oct 3 15:08:32 mpd: [pt0] bundle: OPEN event in state CLOSED
Oct 3 15:08:32 mpd: [pt0] IPCP: Open event
Oct 3 15:08:32 mpd: [pt0] IPCP: LayerStart
Oct 3 15:08:32 mpd: [pt0] IPCP: state change Initial --> Starting
Oct 3 15:08:32 mpd: [pt0] IPCP: Open event
Oct 3 15:08:32 mpd: [pt0] IFACE: Open event
Oct 3 15:08:32 mpd: pptp0: attached to connection with AAA.BBB.CCC.DDD:1504
Oct 3 15:08:32 mpd: mpd: PPTP connection from AAA.BBB.CCC.DDD:1504

and for the successful connection :

Code:
Oct 3 15:07:09 mpd: [pt0] IFACE: Up event
Oct 3 15:07:09 mpd: [pt0] exec: /usr/local/sbin/vpn-linkup ng1 inet 192.168.1.254 192.168.1.192 truzzi
Oct 3 15:07:09 mpd: [pt0] exec: /sbin/route add 192.168.1.254 -iface lo0
Oct 3 15:07:09 mpd: [pt0] exec: /usr/sbin/arp -s 192.168.1.192 0:e0:4c:87:de:a0 pub
Oct 3 15:07:09 mpd: [pt0] exec: /sbin/ifconfig ng1 192.168.1.254 192.168.1.192 netmask 0xffffffff -link0
Oct 3 15:07:09 mpd: [pt0] setting interface ng1 MTU to 1396 bytes
Oct 3 15:07:09 mpd: [pt0] IFACE: Up event
Oct 3 15:07:09 mpd: 192.168.1.254 -> 192.168.1.192
Oct 3 15:07:09 mpd: [pt0] IPCP: LayerUp
Oct 3 15:07:09 mpd: [pt0] IPCP: state change Ack-Rcvd --> Opened
Oct 3 15:07:09 mpd: SECDNS 212.97.32.2
Oct 3 15:07:09 mpd: PRIDNS 192.168.1.1
Oct 3 15:07:09 mpd: IPADDR 192.168.1.192
Oct 3 15:07:09 mpd: [pt0] IPCP: SendConfigAck #8
Oct 3 15:07:09 mpd: SECDNS 212.97.32.2
Oct 3 15:07:09 mpd: PRIDNS 192.168.1.1
Oct 3 15:07:09 mpd: 192.168.1.192 is OK
Oct 3 15:07:09 mpd: IPADDR 192.168.1.192
Oct 3 15:07:09 mpd: [pt0] IPCP: rec'd Configure Request #8 link 0 (Ack-Rcvd)
Oct 3 15:07:09 mpd: [pt0] setting interface ng1 MTU to 1396 bytes
Oct 3 15:07:09 mpd: Decompress using: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: Compress using: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: [pt0] CCP: LayerUp
Oct 3 15:07:09 mpd: [pt0] CCP: state change Ack-Sent --> Opened
Oct 3 15:07:09 mpd: 0x01000040: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: rec'd Configure Ack #32 link 0 (Ack-Sent)
Oct 3 15:07:09 mpd: [pt0] IPCP: state change Req-Sent --> Ack-Rcvd
Oct 3 15:07:09 mpd: IPADDR 192.168.1.254
Oct 3 15:07:09 mpd: [pt0] IPCP: rec'd Configure Ack #45 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: SECDNS 212.97.32.2
Oct 3 15:07:09 mpd: PRIDNS 192.168.1.1
Oct 3 15:07:09 mpd: IPADDR 192.168.1.192
Oct 3 15:07:09 mpd: [pt0] IPCP: SendConfigNak #7
Oct 3 15:07:09 mpd: NAKing with 212.97.32.2
Oct 3 15:07:09 mpd: SECDNS 0.0.0.0
Oct 3 15:07:09 mpd: NAKing with 192.168.1.1
Oct 3 15:07:09 mpd: PRIDNS 0.0.0.0
Oct 3 15:07:09 mpd: NAKing with 192.168.1.192
Oct 3 15:07:09 mpd: IPADDR 0.0.0.0
Oct 3 15:07:09 mpd: [pt0] IPCP: rec'd Configure Request #7 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: [pt0] CCP: state change Req-Sent --> Ack-Sent
Oct 3 15:07:09 mpd: 0x01000040: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: SendConfigAck #6
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 128 bits are acceptable -> yes
Oct 3 15:07:09 mpd: 0x01000040: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: rec'd Configure Request #6 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: pptp0-0: ignoring SetLinkInfo
Oct 3 15:07:09 mpd: 0x01000040: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 128 bits are enabled -> yes
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 56 bits are enabled -> no
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 40 bits are enabled -> no
Oct 3 15:07:09 mpd: [pt0] CCP: SendConfigReq #32
Oct 3 15:07:09 mpd: 0x01000040: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: rec'd Configure Nak #31 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: IPADDR 192.168.1.254
Oct 3 15:07:09 mpd: [pt0] IPCP: SendConfigReq #45
Oct 3 15:07:09 mpd: COMPPROTO VJCOMP, 16 comp. channels, no comp-cid
Oct 3 15:07:09 mpd: [pt0] IPCP: rec'd Configure Reject #44 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: SECNBNS 0.0.0.0
Oct 3 15:07:09 mpd: PRINBNS 0.0.0.0
Oct 3 15:07:09 mpd: [pt0] IPCP: SendConfigRej #5
Oct 3 15:07:09 mpd: SECNBNS 0.0.0.0
Oct 3 15:07:09 mpd: NAKing with 212.97.32.2
Oct 3 15:07:09 mpd: SECDNS 0.0.0.0
Oct 3 15:07:09 mpd: PRINBNS 0.0.0.0
Oct 3 15:07:09 mpd: NAKing with 192.168.1.1
Oct 3 15:07:09 mpd: PRIDNS 0.0.0.0
Oct 3 15:07:09 mpd: NAKing with 192.168.1.192
Oct 3 15:07:09 mpd: IPADDR 0.0.0.0
Oct 3 15:07:09 mpd: [pt0] IPCP: rec'd Configure Request #5 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: 0x01000040: MPPE, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: SendConfigNak #4
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 128 bits are acceptable -> yes
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 56 bits are acceptable -> yes
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 40 bits are acceptable -> yes
Oct 3 15:07:09 mpd: 0x010000e1: MPPC MPPE, 40 bit, 56 bit, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: rec'd Configure Request #4 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: 0x010000e0: MPPE, 40 bit, 56 bit, 128 bit, stateless
Oct 3 15:07:09 mpd: MPPC
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 128 bits are enabled -> yes
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 56 bits are enabled -> yes
Oct 3 15:07:09 mpd: [pt0] CCP: Checking whether 40 bits are enabled -> yes
Oct 3 15:07:09 mpd: [pt0] CCP: SendConfigReq #31
Oct 3 15:07:09 mpd: [pt0] CCP: state change Starting --> Req-Sent
Oct 3 15:07:09 mpd: [pt0] CCP: Up event
Oct 3 15:07:09 mpd: [pt0] CCP: LayerStart
Oct 3 15:07:09 mpd: [pt0] CCP: state change Initial --> Starting
Oct 3 15:07:09 mpd: [pt0] CCP: Open event
Oct 3 15:07:09 mpd: COMPPROTO VJCOMP, 16 comp. channels, no comp-cid
Oct 3 15:07:09 mpd: IPADDR 192.168.1.254
Oct 3 15:07:09 mpd: [pt0] IPCP: SendConfigReq #44
Oct 3 15:07:09 mpd: [pt0] IPCP: state change Starting --> Req-Sent
Oct 3 15:07:09 mpd: [pt0] IPCP: Up event
Oct 3 15:07:09 mpd: [pt0] up: 1 link, total bandwidth 64000 bps
Oct 3 15:07:09 mpd: [pt0] setting interface ng1 MTU to 1400 bytes
Oct 3 15:07:09 mpd: [pt0] LCP: phase shift AUTHENTICATE --> NETWORK
Oct 3 15:07:09 mpd: [pt0] LCP: authorization successful
Oct 3 15:07:09 mpd: [pt0] CHAP: sending SUCCESS
Oct 3 15:07:09 mpd: Response is valid
Oct 3 15:07:09 mpd: Peer name: "truzzi"
Oct 3 15:07:09 mpd: Name: "truzzi"
Oct 3 15:07:09 mpd: [pt0] CHAP: rec'd RESPONSE #1
Oct 3 15:07:09 mpd: MESG: MSRAS-0-MARKETING01
Oct 3 15:07:09 mpd: [pt0] LCP: rec'd Ident #3 link 0 (Opened)
Oct 3 15:07:09 mpd: MESG: MSRASV5.10
Oct 3 15:07:09 mpd: [pt0] LCP: rec'd Ident #2 link 0 (Opened)
Oct 3 15:07:09 mpd: [pt0] LCP: LayerUp
Oct 3 15:07:09 mpd: [pt0] CHAP: sending CHALLENGE
Oct 3 15:07:09 mpd: [pt0] LCP: auth: peer wants nothing, I want CHAP
Oct 3 15:07:09 mpd: [pt0] LCP: phase shift ESTABLISH --> AUTHENTICATE
Oct 3 15:07:09 mpd: [pt0] LCP: state change Ack-Sent --> Opened
Oct 3 15:07:09 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:07:09 mpd: MAGICNUM e3ef075d
Oct 3 15:07:09 mpd: MRU 1500
Oct 3 15:07:09 mpd: PROTOCOMP
Oct 3 15:07:09 mpd: ACFCOMP
Oct 3 15:07:09 mpd: [pt0] LCP: rec'd Configure Ack #113 link 0 (Ack-Sent)
Oct 3 15:07:09 mpd: [pt0] LCP: state change Req-Sent --> Ack-Sent
Oct 3 15:07:09 mpd: ACFCOMP
Oct 3 15:07:09 mpd: PROTOCOMP
Oct 3 15:07:09 mpd: MAGICNUM 597d370a
Oct 3 15:07:09 mpd: MRU 1400
Oct 3 15:07:09 mpd: [pt0] LCP: SendConfigAck #1
Oct 3 15:07:09 mpd: ACFCOMP
Oct 3 15:07:09 mpd: PROTOCOMP
Oct 3 15:07:09 mpd: MAGICNUM 597d370a
Oct 3 15:07:09 mpd: MRU 1400
Oct 3 15:07:09 mpd: [pt0] LCP: rec'd Configure Request #1 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:07:09 mpd: MAGICNUM e3ef075d
Oct 3 15:07:09 mpd: MRU 1500
Oct 3 15:07:09 mpd: PROTOCOMP
Oct 3 15:07:09 mpd: ACFCOMP
Oct 3 15:07:09 mpd: [pt0] LCP: SendConfigReq #113
Oct 3 15:07:09 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:07:09 mpd: MP SHORTSEQ
Oct 3 15:07:09 mpd: MP MRRU 1600
Oct 3 15:07:09 mpd: [pt0] LCP: rec'd Configure Reject #112 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: CALLBACK
Oct 3 15:07:09 mpd: [pt0] LCP: SendConfigRej #0
Oct 3 15:07:09 mpd: Not supported
Oct 3 15:07:09 mpd: CALLBACK
Oct 3 15:07:09 mpd: ACFCOMP
Oct 3 15:07:09 mpd: PROTOCOMP
Oct 3 15:07:09 mpd: MAGICNUM 597d370a
Oct 3 15:07:09 mpd: MRU 1400
Oct 3 15:07:09 mpd: [pt0] LCP: rec'd Configure Request #0 link 0 (Req-Sent)
Oct 3 15:07:09 mpd: pptp0-0: ignoring SetLinkInfo
Oct 3 15:07:09 mpd: ENDPOINTDISC [802.1] 00 e0 4c 87 de a1
Oct 3 15:07:09 mpd: MP SHORTSEQ
Oct 3 15:07:09 mpd: MP MRRU 1600
Oct 3 15:07:09 mpd: AUTHPROTO CHAP MSOFTv2
Oct 3 15:07:09 mpd: MAGICNUM e3ef075d
Oct 3 15:07:09 mpd: MRU 1500
Oct 3 15:07:09 mpd: PROTOCOMP
Oct 3 15:07:09 mpd: ACFCOMP
Oct 3 15:07:09 mpd: [pt0] LCP: SendConfigReq #112
Oct 3 15:07:09 mpd: [pt0] LCP: phase shift DEAD --> ESTABLISH
Oct 3 15:07:09 mpd: [pt0] LCP: state change Starting --> Req-Sent
Oct 3 15:07:09 mpd: [pt0] LCP: Up event
Oct 3 15:07:09 mpd: [pt0] link: origination is remote
Oct 3 15:07:09 mpd: [pt0] link: UP event
Oct 3 15:07:09 mpd: [pt0] device is now in state UP
Oct 3 15:07:09 mpd: [pt0] device: UP event in state OPENING
Oct 3 15:07:09 mpd: [pt0] device is now in state OPENING
Oct 3 15:07:09 mpd: [pt0] attaching to peer's outgoing call
Oct 3 15:07:09 mpd: [pt0] device: OPEN event in state DOWN
Oct 3 15:07:09 mpd: [pt0] LCP: LayerStart
Oct 3 15:07:09 mpd: [pt0] LCP: state change Initial --> Starting
Oct 3 15:07:09 mpd: [pt0] LCP: Open event
Oct 3 15:07:09 mpd: [pt0] link: OPEN event
Oct 3 15:07:09 mpd: [pt0] opening link "pt0"...
Oct 3 15:07:09 mpd: [pt0] bundle: OPEN event in state CLOSED
Oct 3 15:07:09 mpd: [pt0] IPCP: Open event
Oct 3 15:07:09 mpd: [pt0] IPCP: LayerStart
Oct 3 15:07:09 mpd: [pt0] IPCP: state change Initial --> Starting
Oct 3 15:07:09 mpd: [pt0] IPCP: Open event
Oct 3 15:07:09 mpd: [pt0] IFACE: Open event
Oct 3 15:07:09 mpd: pptp0: attached to connection with AAA.BBB.CCC.DDD:1871
Oct 3 15:07:09 mpd: mpd: PPTP connection from AAA.BBB.CCC.DDD:1871

The two VPN have been created on two Windows XP SP2 box in the same identical manneer.

These logs are taken with a 1.231 but the problem persists with a 1.3b4 upgrade.

What can i do?

The m0n0wall WAN interface has a public IP, and it's not behind nat.
The client behind the netgear is NATted.
« Last Edit: October 03, 2007, 17:34:06 by aNt1X »
« Reply #1 on: October 04, 2007, 11:18:51 »
markb ****
Posts: 331
The problem is running more than 1 VPN to the same destination through NAT.  Remember that to the destination end it will appear as coming from the same IP.  I my experience routers that can handle this are not common and I am not sure that the netgear one is able.  One alternative could be to set up an IPSEC vpn between the netgear and monowall direct thus removing the need for the client VPN.
« Reply #2 on: October 07, 2007, 14:31:42 »
aNt1X *
Posts: 4
I tried to setup an IPSEC VPN, but the netgear seems to be affected by some bug: the Tunnel works fine if i disable its wireless interface, but If the wireless interface is enabled, sometimes the router crashes and then reboot   Huh


No way to handle more then one PPTP VPN between NAT?

I can't understand how the Netgear is involved in this VPN PPTP NATting problem. Shouldn't it nat the client connections, without doing anything ? So, it is a m0n0wall problem ?
« Reply #3 on: October 08, 2007, 10:27:24 »
markb ****
Posts: 331
Other way round.  As I understand it, you are behind the Netgear trying to VPN to the monowall.  The problem is with the netgear router, as when it gets the VPN traffic back from the Mono, it can't differentiate between which client the packets are for.  Sorry, I wasn't clear before.  There are router models that can handle this, there may even be a firmware upgrade for the Netgear that will work.
 
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