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09-08-2003 02:59 AM
09-08-2003 02:59 AM
MPPE
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09-08-2003 03:43 AM
09-08-2003 03:43 AM
Re: MPPE
If the either have fixed IP addresses. iptables with SNAT running might avoid this isssue and provide better performance. I don't know how to make it log, but thats probably possible as well.
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09-08-2003 07:54 PM
09-08-2003 07:54 PM
Re: MPPE
What's your /etc/pptpd.conf say?
Also, do you have your user/pass pairs listed in your 'chap-secrets' file?
Another thing to look at is the way you are running 'pptpd'. We've had issues using it when launched from inetd, and find it more stable in the stand-alone mode.
Turn on the 'pptpd' debugging, and watch what it says in your 'messages' log file. It gives you some very good infomation about what is occuring during the VPN handshake.
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09-08-2003 08:18 PM
09-08-2003 08:18 PM
Re: MPPE
Sep 9 14:05:56 barbara pptpd[14104]: CTRL: Client 192.168.1.104 control connection started
Sep 9 14:05:57 barbara pptpd[14104]: CTRL: Starting call (launching pppd, opening GRE)
Sep 9 14:05:57 barbara pptpd[14104]: Buffering out-of-order packet; got 1 after 4294967295
Sep 9 14:05:57 barbara pptpd[14104]: Packet reorder timeout waiting for 0
Sep 9 14:05:57 barbara pptpd[14104]: Buffering out-of-order packet; got 2 after 0
Sep 9 14:05:57 barbara pptpd[14104]: CTRL: Client 192.168.1.104 control connection finished
Also pppd said in syslog:
Sep 9 14:05:57 barbara pppd[14105]: MSCHAP-v2 peer authentication succeeded for jazzy
Sep 9 14:05:57 barbara pppd[14105]: LCP terminated by peer (MPPE required but peer negotiation failed)
My pptpd.conf file minus comments says:
speed 115200
option /etc/ppp/pptpd-options
debug
localip 192.168.56.100-254
remoteip 192.168.55.100-254
I'm pretty sure chap-secrets is right, because pppd says MSCHAP-v2 authentication was alright. And it works fine when I tell the clients not to require authention.
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09-08-2003 08:22 PM
09-08-2003 08:22 PM
Re: MPPE
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09-08-2003 11:48 PM
09-08-2003 11:48 PM
Re: MPPE
in /etc/modules.conf:
alias char-major-108 ppp_generic
alias ppp-compress-18 ppp_mppe
alias ppp-compress-21 bsd_comp
alias ppp-compress-24 ppp_deflate
alias ppp-compress-26 ppp_deflate
These modules should live under /lib/modules/
The 'ppp_mppe' is created by a patch to the kernel, the remaining should come with the kernel anyway.
Apart from that, everything looks pretty good.
I have to admit I've not tried this with a 2.4.20 kernel, only the stock RH8 (manually patch) 2.4.18 kernel.
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09-09-2003 12:45 AM
09-09-2003 12:45 AM
Re: MPPE
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09-09-2003 01:58 AM
09-09-2003 01:58 AM
Re: MPPE
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