[pptp-server] ppp_mppe seems to die

[Christian Boye]

On 15 Dec, Harald Scharf wrote:
> Hello to all,
> i have a problem, when i connect to pptpd with
> Micro$oft encryption enabled.
> The connection is up for several seconds, or minutes, and then
> it breaks without any error message.
> I tried to locate the error with comparing the Routing Tables on Client
> and Server, but they seem to be ok.
> This is the Output from the Syslog :

I have the same problem. I use a linux on both sides (pppd-2.3.11
with mppe-patches). The connection is up for several seconds and then it
breaks. This is the server logfile:

Dec 18 20:12:29 wave01 pppd[13518]: MPPE 128 bit, stateless compression enabled
Dec 18 20:12:59 wave01 pppd[13518]: sent [CHAP Challenge id=0x2 <...>, name = "wave01"]
Dec 18 20:12:59 wave01 pppd[13518]: Timeout 0x8056b00:0x807aa40 in 3 seconds.
Dec 18 20:12:59 wave01 pppd[13518]: rcvd [CHAP Response id=0x2 <...>, name = "user"
Dec 18 20:12:59 wave01 pppd[13518]: Untimeout 0x8056b00:0x807aa40.
Dec 18 20:12:59 wave01 pppd[13518]: ChapReceiveResponse: rcvd type MS-CHAP-V2
Dec 18 20:12:59 wave01 pppd[13518]: sent [CHAP Success id=0x2 "..."]
Dec 18 20:12:59 wave01 pppd[13518]: Timeout 0x8056b80:0x807aa40 in 30 seconds.
Dec 18 20:12:59 wave01 pppd[13518]: MSCHAP-v2 peer authentication succeeded for user
Dec 18 20:12:59 wave01 pppd[13518]: rcvd [CCP ResetReq id=0x4]
Dec 18 20:12:59 wave01 pppd[13518]: sent [CCP ResetAck id=0x4]
Dec 18 20:12:59 wave01 kernel: mppe_comp_reset
Dec 18 20:13:00 wave01 pppd[13518]: rcvd [CCP ResetReq id=0x5]
Dec 18 20:13:00 wave01 pppd[13518]: sent [CCP ResetAck id=0x5]
Dec 18 20:13:00 wave01 kernel: mppe_comp_reset

My options on server side:

lock
debug
name wave01
domain funk.local
proxyarp
plugin /usr/lib/ppp/smbpasswd.so
noaccomp
nobsdcomp
nodeflate
nopcomp
nopredictor1
novj
novjccomp
require-chapms-v2
chap-interval 30
+chap
+chapms
+chapms-v2
mppe-40
mppe-128
mppe-stateless
auth

My options on client side:

lock
hode-password
name user
defaultroute
mppe-40
mppe-128
mppe-stateless

If MPPE was disabled on both sides or on the client only, the connection
is stable.

	Christian
-- 
Universitaet Goettingen - Internet-Hotline (Administration)
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