[pptp-server] PPTP crypto and management Problems

tmk tmk at netmagic.net
Tue Jul 20 19:47:44 CDT 1999


1: You're MASQing pptp packets. Don't. =)
2: Static IPs can be assigned using the ppp option ipcp-accept-remote ppp
option and telling the windows box (manually)it's own local ip addr.

Kevin
----- Original Message -----
From: Alessandro Iob <alex at nauta.it>
To: <pptp-server at lists.schulte.org>
Sent: Monday, July 19, 1999 1:13 AM
Subject: [pptp-server] PPTP crypto and management Problems


> Two questions:
>
> 1 -
>
> I patched ppp-2.3.8 with the MPPE patch and the RC4 sources from
> OpenSSL-0.9.3a distribution, recompiled the kernel and all the other
> things.
> When I connect to the pptpd linux server with "Require encrypted data"
> option enabled I get a sequence of errors like the ones below (for each
> transmitted packet,I suppose).
> The server works fine with no data encryption.
>
> Jul 19 09:41:00 fw pppd[1517]: Unsupported protocol (0x30d) received
> Jul 19 09:41:00 fw pppd[1517]: sent [LCP ProtRej id=0xe 03 0d df f5 e4
> 78 38 4e
> 8d 66 3f c8 f0 e2 f8 ef cb f1 c5 00 13 45 5b 3f 40 d5 22 63 bd c8 6d 1c
> b1 e4 77
>  01 11 5d 51 4c 0a 0e c5 0c d7 93 58 b5 b7 de d3 27 99 36 89 e3 78 d5 47
> 71 44 b
> c a8 75 2d f8 16 df b4 86 c2 31 75 ab c9 f3 f8
> Jul 19 09:41:00 fw pppd[1517]: rcvd [proto=0x82e7] 22 71 6d 16 1f 9d 3b
> 02 13 a3
>  ae bd 3f c9 d9 5b b4 b9 b0 40 a1 31 11 e1 82 71 6a b5 e9 9b f6 ad ...
> Jul 19 09:41:00 fw pppd[1517]: Unsupported protocol (0x82e7) received
> Jul 19 09:41:00 fw pppd[1517]: sent [LCP ProtRej id=0xf 82 e7 22 71 6d
> 16 1f 9d
> 3b 02 13 a3 ae bd 3f c9 d9 5b b4 b9 b0 40 a1 31 11 e1 82 71 6a b5 e9 9b
> f6 ad c9
>  40 51 1a 9a 90 ff 98 3f b3 f4 23 9a e5 7a f7 34 b5 aa a7 86 2b 4e 36 e4
> b9 65 7
> c df fc fa 7c c0 54 ce 96 dc c8 64 be 12 43 e4
> Jul 19 09:41:00 fw kernel: ip_fw_demasq_gre(): Inbound from
> 194.21.179.133 has n
> o masq table entry.
>
> My ppp options file is:
>
> name 194.21.179.140
> ms-dns 192.168.0.1
>
> lock
> local
> debug
> auth
> require-chap
>
> #proxyarp
> hide-password
> noipx
> lcp-echo-interval 30
> lcp-echo-failure 4
> asyncmap 0
>
> +chap
> +chapms
> +chapms-v2
> mppe-40
> mppe-128
> mppe-stateless
>
> Any suggestion?
>
> 2 -
>
> How can I assign fixed IP addresses to PPTP clients?
>
>
>
> Thank You
>
> Alessandro Iob
> alex at nauta.it
>
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