[pptp-server] pptpd/pppd/mppe + kernel 2.2.19

Wed May 30 08:29:13 CDT 2001

In theory, compiled in or modular doesn't make any difference.  But then 
again, in theory, there is no difference between theory and practice. In 
practice, there is. :)

On Wednesday 30 May 2001 08:33, foob at return0.net wrote:
> Is it possible to use pptpd,pppd,mppe128 on linux *without*
> kernel modules?  Im running 2.2.19, I dont want to add module
> support, but i'd quite like secure(ish) pptp.
> I have configured everything, and a Windows2000 machine can
> connect, if encyrption is 'optional'.  If it is 'required',
> Windows fails to negotiate, saying the remote server doesnt
> support the desired encyrption.
>
> Is this because I havent got the ppp mppe modules installed?
> Can I build them into the kernel somehow?
>
> 5.13	Q: I can get the PPTP connection to work fine, but can not get
> encryption to work.  What is wrong?
>
> 	A: It has been reported that changing PPP from being built into
> the kernel to being a loadable module has fixed the problem.  The
> configuration file listed in the earlier instructions does build PPP as a
> loadable module.
> (http://home.swbell.net/berzerke/2.4_Kernel_PPTPD-HOWTO.txt)
>
> Anyone got any knowledge of this?  Why should it be required
> to be modular?  Any help much appreciatde...
>
>
> - foob
>
>
> (heres a syslog dump of an unsuccessful connection from 2k to
> linux)
>
>  pptpd[7140]: MGR: Launching /usr/sbin/pptpctrl to handle client
>  pptpd[7140]: CTRL: local address = 10.10.10.254
>  pptpd[7140]: CTRL: remote address = 10.10.10.101
>  pptpd[7140]: CTRL: Client xxx.xxx.xxx.xxx control connection started
>  pptpd[7140]: CTRL: Received PPTP Control Message (type: 1)
>  pptpd[7140]: CTRL: Made a START CTRL CONN RPLY packet
>  pptpd[7140]: CTRL: I wrote 156 bytes to the client.
>  pptpd[7140]: CTRL: Sent packet to client
>  pptpd[7140]: CTRL: Received PPTP Control Message (type: 7)
>  pptpd[7140]: CTRL: Set parameters to 1525 maxbps, 64 window size
>  pptpd[7140]: CTRL: Made a OUT CALL RPLY packet
>  pptpd[7140]: CTRL: Starting call (launching pppd, opening GRE)
>  pptpd[7140]: CTRL: pty_fd = 4
>  pptpd[7140]: CTRL: tty_fd = 5
>  pptpd[7140]: CTRL: I wrote 32 bytes to the client.
>  pptpd[7141]: CTRL (PPPD Launcher): Connection speed = 115200
>  pptpd[7141]: CTRL (PPPD Launcher): local address = 10.10.10.254
>  pptpd[7141]: CTRL (PPPD Launcher): remote address = 10.10.10.101
>  pptpd[7140]: CTRL: Sent packet to client
>  pppd[7141]: pppd 2.4.1 started by root, uid 0
>  pppd[7141]: Using interface ppp0
>  pppd[7141]: Connect: ppp0 <--> /dev/pts/5
>  pppd[7141]: sent [LCP ConfReq id=0x1 <mru 1490> <asyncmap 0x0> <auth chap
> 81> <magic 0xcea6f60d> <pcomp> <accomp>]
>  pptpd[7140]: CTRL: Received PPTP Control Message (type: 15)
>  pptpd[7140]: CTRL: Got a SET LINK INFO packet with standard ACCMs
>  pptpd[7140]: GRE: Discarding out of order packet
>  pppd[7141]: rcvd [LCP ConfNak id=0x1 <mru 1500>]
>  pppd[7141]: sent [LCP ConfReq id=0x2 <asyncmap 0x0> <auth chap 81> <magic
> 0xcea6f60d> <pcomp> <accomp>]
>  pppd[7141]: rcvd [LCP ConfAck id=0x2 <asyncmap 0x0> <auth chap 81> <magic
> 0xcea6f60d> <pcomp> <accomp>]
>  pppd[7141]: rcvd [LCP ConfReq id=0x1 <magic 0x6c2519ea> <pcomp> <accomp>
> < 0d 03 06> <mrru 1614> <endpoint
> [local:e1.d1.f0.6e.e7.67.48.7c.8f.9b.e3.28.ac.0d.7a.d7.00.00.00.09]>]
>  pppd[7141]: sent [LCP ConfRej id=0x1 < 0d 03 06> <mrru 1614>]
>  pppd[7141]: rcvd [LCP ConfReq id=0x2 <magic 0x6c2519ea> <pcomp> <accomp>
> <endpoint
> [local:e1.d1.f0.6e.e7.67.48.7c.8f.9b.e3.28.ac.0d.7a.d7.00.00.00.09]>]
>  pppd[7141]: sent [LCP ConfAck id=0x2 <magic 0x6c2519ea> <pcomp> <accomp>
> <endpoint
> [local:e1.d1.f0.6e.e7.67.48.7c.8f.9b.e3.28.ac.0d.7a.d7.00.00.00.09]>]
>  pppd[7141]: sent [LCP EchoReq id=0x0 magic=0xcea6f60d]
>  pppd[7141]: sent [CHAP Challenge id=0x1
> <43e28c5c0616b272f6f180fa57005c56>, name = "xxx"]
>  pptpd[7140]: CTRL: Received PPTP Control Message (type: 15)
>  pptpd[7140]: CTRL: Ignored a SET LINK INFO packet with real ACCMs!
>  pppd[7141]: rcvd [LCP code=0xc id=0x3 6c 25 19 ea 4d 53 52 41 53 56 35 2e
> 30 30]
>  pppd[7141]: sent [LCP CodeRej id=0x3 0c 03 00 12 6c 25 19 ea 4d 53 52 41
> 53 56 35 2e 30 30]
>  pppd[7141]: rcvd [LCP code=0xc id=0x4 6c 25 19 ea 4d 53 52 41 53 2d 31 2d
> 54 45 53 54]
>  pppd[7141]: sent [LCP CodeRej id=0x4 0c 04 00 14 6c 25 19 ea 4d 53 52 41
> 53 2d 31 2d 54 45 53 54]
>  pppd[7141]: rcvd [LCP EchoRep id=0x0 magic=0x6c2519ea]
>  pppd[7141]: rcvd [CHAP Response id=0x1
> <3f50738e46d222512e804f9793fdb7d00000000000000000e98127435c78168a6a3a4ed2ac
>be517a1cf6b7e8cc3abaa600>, name = "xxx"]
>  pppd[7141]: sent [CHAP Success id=0x1
> "S=0A5140A473E7E472164A21F197C7C5CC039110A8"]
>  pppd[7141]: sent [IPCP ConfReq id=0x1 <addr 10.10.10.254> <compress VJ 0f
> 01>]
>  pppd[7141]: sent [CCP ConfReq id=0x1 <bsd v1 15>]
>  pppd[7141]: MSCHAP-v2 peer authentication succeeded for xxx
>  pppd[7141]: rcvd [CCP ConfReq id=0x5 <mppe 1 0 0 e1>]
>  pppd[7141]: sent [CCP ConfRej id=0x5 <mppe 1 0 0 60>]
>  pptpd[7140]: GRE: Discarding out of order packet
>  pppd[7141]: rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>]
>  pppd[7141]: sent [IPCP ConfReq id=0x2 <addr 10.10.10.254>]
>  pppd[7141]: rcvd [CCP ConfRej id=0x1 <bsd v1 15>]
>  pppd[7141]: sent [CCP ConfReq id=0x2]
>  pppd[7141]: rcvd [IPCP ConfAck id=0x2 <addr 10.10.10.254>]
>  pppd[7141]: rcvd [CCP ConfNak id=0x2 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0x3]
>  pppd[7141]: rcvd [CCP ConfNak id=0x3 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0x4]
>  pppd[7141]: rcvd [CCP ConfNak id=0x4 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0x5]
>  pppd[7141]: rcvd [CCP ConfNak id=0x5 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0x6]
>  pppd[7141]: rcvd [CCP ConfNak id=0x6 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0x7]
>  pppd[7141]: rcvd [CCP ConfNak id=0x7 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0x8]
>  pppd[7141]: rcvd [CCP ConfNak id=0x8 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0x9]
>  pppd[7141]: rcvd [CCP ConfNak id=0x9 <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0xa]
>  pppd[7141]: rcvd [CCP ConfNak id=0xa <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0xb]
>  pppd[7141]: rcvd [CCP ConfNak id=0xb <mppe 0 0 0 0>]
>  pppd[7141]: sent [CCP ConfReq id=0xc]
>  pptpd[7140]: CTRL: Received PPTP Control Message (type: 15)
>  pptpd[7140]: CTRL: Ignored a SET LINK INFO packet with real ACCMs!
>  pppd[7141]: rcvd [LCP TermReq id=0x7
> "l%\031\37777777752\000<\37777777715t\000\000\002\37777777746"]
>  pppd[7141]: LCP terminated by peer (l%^YM-j^@<M-Mt^@^@^BM-f)
>  pppd[7141]: sent [LCP TermAck id=0x7]
>  pptpd[7140]: CTRL: Received PPTP Control Message (type: 12)
>  pptpd[7140]: CTRL: Made a CALL DISCONNECT RPLY packet
>  pptpd[7140]: CTRL: Received CALL CLR request (closing call)
>  pptpd[7140]: CTRL: I wrote 148 bytes to the client.
>  pptpd[7140]: CTRL: Sent packet to client
>  pptpd[7140]: CTRL: Error with select(), quitting
>  pptpd[7140]: CTRL: Client xxx.xxx.xxx.xxx control connection finished
>  pptpd[7140]: CTRL: Exiting now
>  pptpd[7119]: MGR: Reaped child 7140
>  pppd[7141]: Modem hangup
>  pppd[7141]: Connection terminated.
>  pppd[7141]: Connect time 0.1 minutes.
>  pppd[7141]: Sent 669 bytes, received 767 bytes.
>  pppd[7141]: Exit.May 30 12:41:23 node pptpd[6846]: MGR: Launching
> /usr/sbin/pptpctrl to handle client
>
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