У меня тоже была такая проблема, сделала вот так:
mpd.conf
default:
load pptp0pptp0:
new -i ng0 pptp0 pptp0
set ipcp ranges 192.168.1.0/32 192.168.1.170/32
set iface disable on-demand
set bundle enable multilink
set link yes acfcomp protocomp
set link no pap chap
set link enable chap
set link keep-alive 60 180
set ipcp yes vjcomp
set ipcp dns 81.25.224.1
set pptp self 81.25.225.134
set pptp enable incoming
set pptp disable originate
set iface enable tcpmssfix
set bundle enable compression
set ccp yes mppc
set ccp yes mpp-e40
set ccp yes mpp-e128
set ccp yes mpp-stateless
mpd.links - скопировала с работающего сервера все как было
#################################################################
#
# MPD links file
#
# In this file you define the various "links" that comprise
# a bundle. Each link corresponds to a single serial device.
# These are commands that could be typed into the console directly.
#
# This file should only contain configuration for a link if
# that configuration is specific to that particular link. That
# is, things like device name and bandwidth. Other generic link
# options like LCP parameters belong in "mpd.conf".
#
# The first command for each link should be "set link type ..."
#
# $Id: mpd.links.sample,v 1.4.2.1 2004/03/07 14:33:27 mbretter Exp $
#
#################################################################
#
# An example of a normal analog modem on COM2. Mpd knows how
# to automatically detect and configure several common modem types.
#
usr:
set link type modem
set modem device /dev/cuaa1
set modem var $DialPrefix "DT"
#
# An example for Lucent compatible Winmodem (Xircom).
# Set the country code variable $CountryCode.
#
ltmdm:
set link type modem
set modem device /dev/cual0
set modem var $DialPrefix "DT"
set modem var $SpeakerOff "no"
# Set the country code setting to France
# USA( 1): b5 (default)
# JPN( 81): 00
# GBR( 44): b4
# DEU( 49): 42
# SWE( 46): a5
# DNK( 45): 31
# FIN(358): 3c
# NOR( 47): 82
# AUT( 43): 0a
# CHE( 41): a6
# RUS( 7): b8
# AUS( 61): 09
# MYS( 60): 6c
# CHN( 86): 26
# BEL( 32): 0f
# CYP(357): 2d
# FRA( 33): 3d
# GRC( 30): 46
# ISL(354): 52
# IRL(353): 57
# ISR(972): 58
# ITA( 39): 59
# LIE(423): 68
# LUX(352): 69
# NLD( 31): 7b
# PRT(351): 8b
# ESP( 34): a0
set modem var $CountryCode "3d"
#
# Another example: Motorola Bitsurfer Pro terminal adapter on COM3
# An ISDN terminal adapter is a "modem" as far as mpd is concerned.
#
# Note that mpd will automatically configure the SPID settings, etc.
# for certain terminal adapters: Bitsurfr's, 3Com Impact IQ,
# Farallon Netopia ISDN modem, Adtran Express XRT.
#
bitsurfr:
set link type modem
set modem device /dev/cuaa2
set link latency 1000
set link bandwidth 92160
set modem speed 115200
set modem watch +cd
# ISDN configuration
set modem var $TA_SwitchType "NI-1"
set modem var $TA_Dirno1 "2125551212"
set modem var $TA_Dirno2 "2125551212"
set modem var $TA_SPID1 "212555121201"
set modem var $TA_SPID2 "212555121202"
# we want 128K multi-link
set modem var $TA_Bonding "yes"
#
# Here is a netgraph example. This would do PPP over a
# synchronous line using the "sr" device driver.
#
sync:
set link type ng
set ng node sr0:
set ng hook rawdata
#
#
# For our PPTP server
#
pptp0:
set link type pptp
# set pptp self 1.2.3.4
# set pptp enable incoming
# set pptp disable originate
#
# For our PPTP VPN connection to 192.168.2.0/24
#
vpn:
set link type pptp
set pptp self 1.2.3.4
set pptp peer 2.3.4.5
set pptp enable originate incoming outcall
#
# For our PPPoE connection, using Ethernte interface "fxp1"
# Often the service is ignored. If yours is required, replace
# the "whatever" string with your PPPoE service string.
#
PPPoE:
set link type pppoe
set pppoe iface fxp1
set pppoe service "whatever"
set pppoe disable incoming
set pppoe enable originate
#
# Country specific configuration examples
#
# Austria ADSL
adslat:
set link type pptp
set pptp peer 10.0.0.138
set pptp enable originate outcall
mpd.secret
L: 1 C: 1 =====================================================================
#################################################################
#
# MPD secrets file
#
# This file contains login, password pairs, called "secrets".
# Entries are used for authentication in either or both directions,
# as well as telnet console login.
#
# For example, to use the "MyLogin" secret, use this command:
#
# set bundle authname MyLogin
#
# Each entry may have a third field containing an IP address range
# specifying the allowable address assignments for that # peer.
#
# NOTE: this file should not be readable by anyone except root!
#
# $Id: mpd.secret.sample,v 1.1 2001/03/10 06:06:47 archiecobbs Exp $
#
#################################################################
MyLogin MyPassword
PeerLogin PeerPassword
ConsoleLogin ConsolePassword
username "pass"
Запускаю /usr/local/sbin/mpd -b
Но возникла новая проблема, понять причины которой я не могу... может кто подскажет.
VPN- соединение устанавливается, все вроде бы работает нормально до того момента, пока пользователь его не закрывает. А вот тут начинаются проблемы, но уже в локальной сети:
При любой попытке выйти в интернет из локалки сервер выдает сообщения:
Apr 20 12:49:25 gw /kernel: arplookup 192.168.1.151 failed: host is not on local network
Apr 20 12:49:58 gw /kernel: arplookup 192.168.1.15 failed: host is not on local network
Apr 20 12:50:55 gw /kernel: arplookup 192.168.1.122 failed: host is not on local network
Apr 20 12:51:00 gw /kernel: arplookup 192.168.1.222 failed: host is not on local network
подключиться к серверу можно только удаленно, через внешний IP или непосредственно с него... ни один локальный адрес соединиться не может. Повлиять на это тоже не получается никоим образом кроме перезагрузки.
Вариант для распечатки
Информационная безопасность (Public)
(??) on 27-Мрт-07, 12:35 
