[pptp-server] PPTP Kernel patches

Wed Oct 18 21:49:09 CDT 2000

The docs were wrong when they told you to remove the #include "rc4_skey.c"
line.  The version of SSLeay that you are using requires this file.

7.4.3.	Get symbols not defined for ppp_mppe module when doing "depmod -a"

	Solution: Probably missing some of the rc4* files (most likely rc4_skey.c)
		This typically happens when getting rc4* files from a different source
		than was suggested in the corresponding patch file.  If I remember right,
		if you use the SSLeay-0.6.6 files you don't have an rc4_skey.c file,
		but if you use the SSLeay-0.9.0 files you must have the rc4_skey.c file.
		Using OpenSSL-0.9.5 may have different requirements.
		Best solution is to use the complete patch for your appropriate ppp
version
		from the following ftp server, as these patches include the rc4* files:
			ftp://ftp.binarix.com/pub/ppp-mppe/

> -----Original Message-----
> From: pptp-server-admin at lists.schulte.org
> [mailto:pptp-server-admin at lists.schulte.org]On Behalf Of Joey Coco
> Sent: Wednesday, October 18, 2000 11:10 PM
> To: pptp-server at lists.schulte.org
> Subject: [pptp-server] PPTP Kernel patches
>
>
>
>
> Hey guys,
>
> I patched pppd, as well as my kernel according to dox. I compiled
> PPP as a module, and I now have the following modules under
> kernel 2.2.17:
>
> bsd_comp.o
> ip_masq_cuseeme.o
> ip_masq_ftp.o
> ip_masq_irc.o
> ip_masq_quake.o
> ip_masq_raudio.o
> ip_masq_user.o
> ip_masq_vdolive.o
> ppp.o
> ppp_deflate.o
> ppp_mppe.o
>
> When I load these modules I get the following:
>
> /lib/modules/current/ppp_mppe.o: unresolved symbol RC4_set_key
>
> As well, when I try to connect to the server with a win98 client,
> I get the following error with software compression and encryption
> enabled:
>
> error 720: could not negotiate a compatible set of network protocols.
>
> Without encryption and compression it connects, but oddly enough does
> NOT give my client an IP address. Only CHAP shows up in the details
> box, yet this is the process running on my box:
>
> 28715 ?        S   0:00 /usr/sbin/pppd local 115200
> 192.168.0.2:192.168.0.10
>
>
> Here is the debug output:
>
> Oct 19 10:15:33 demo pppd[28715]: rcvd [CHAP Response id=0x1
> <29e911d16443b14ab796f4f426957a212e084868f167478c8e35306e0165e601f
> c4ec276d3dd1f55b77ccb6a451dd42301>,
> name = "jrcole"]
> Oct 19 10:15:33 demo pppd[28715]: sent [CHAP Success id=0x1 "Welcome to
> demo."]
> Oct 19 10:15:33 demo pppd[28715]: sent [IPCP ConfReq id=0x1 <addr
> 192.168.0.2> <compress VJ 0f 01>]
> Oct 19 10:15:33 demo pppd[28715]: sent [CCP ConfReq id=0x1 <deflate 15>
> <deflate(old#) 15> <bsd v1 15>]
> Oct 19 10:15:33 demo pppd[28715]: rcvd [LCP ProtRej id=0x3 80 21 01 01 00
> 10 03
> 06 c0 a8 00 02 02 06 00 2d 0f 01]
> Oct 19 10:15:33 demo pppd[28715]: rcvd [LCP ProtRej id=0x4 80 fd 01 01 00
> 0f 1a
> 04 78 00 18 04 78 00 15 03 2f]
> Oct 19 10:16:32 demo pptpd[28714]: CTRL: Received PPTP Control Message
> (type: 5)Oct 19 10:16:32 demo pptpd[28714]: CTRL: Made a ECHO RPLY packet
> Oct 19 10:16:32 demo pptpd[28714]: CTRL: I wrote 20 bytes to the client.
> Oct 19 10:16:32 demo pptpd[28714]: CTRL: Sent packet to client
>
>
> Here is the same debug output when using softare compression and
> encryption:
>
> Oct 19 10:18:03 demo pppd[28726]: rcvd [CCP ConfReq id=0x1 <mppe 1 0 0 31>
> <lzs
> 0 1 4>]
> Oct 19 10:18:03 demo pppd[28726]: sent [CCP ConfRej id=0x1 <mppe 1 0 0 60>
> <lzs
> 0 1 4>]
> Oct 19 10:18:03 demo pppd[28726]: rcvd [LCP ProtRej id=0x3 80 21 01 01 00
> 10 03
> 06 c0 a8 00 01 02 06 00 2d 0f 01]
> Oct 19 10:18:03 demo pppd[28726]: rcvd [CCP ConfRej id=0x1 <deflate 15>
> <deflate(old#) 15> <bsd v1 15>]
> Oct 19 10:18:03 demo pppd[28726]: sent [CCP ConfReq id=0x2]
> Oct 19 10:18:03 demo pppd[28726]: rcvd [CCP ConfReq id=0x2]
> Oct 19 10:18:03 demo pppd[28726]: sent [CCP ConfAck id=0x2]
> Oct 19 10:18:03 demo pppd[28726]: rcvd [CCP ConfAck id=0x2]
> Oct 19 10:18:03 demo pppd[28726]: rcvd [CCP TermReq id=0x3]
> Oct 19 10:18:03 demo pppd[28726]: sent [CCP TermAck id=0x3]
>
>
>  Does anyone have any insight on why this would be bahaving this way?
> perhaps I misunderstood a step somewhere.. I'm curious tho why no
> IP address is recieved by the win98 client.  BTW the version of PPPD
> being used is 2.3.8.
>
>
> Thanks.
>
> -- Joe
>
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