Здравствуйте, господа!
У меня такая проблема с mpd. Если линк оборвался и восстановился - MPD нормально стартует, но не создается туннель. Если MPD убить и стартовать заново вручную, то всё будет в порядке.
Вот примерно, что происходит.

При первом запуске (или при загрузке системы, либо вручную) mpd -b всё нормально. MPD стартует и создает интерфейс ng0.

mpd:   89.178.172.22 -> 195.14.38.18
mpd: [vpn] IFACE: Up event
mpd: [vpn] setting interface ng0 MTU to 1460 bytes
mpd: [vpn] exec: /sbin/ifconfig ng0 89.178.172.22 195.14.38.18 netmask 0xffffffff -link0
mpd: [vpn] exec: /sbin/route add 89.178.172.22 -iface lo0
mpd: [vpn] exec: /usr/local/etc/mpd/link-up.sh ng0 inet 89.178.172.22 195.14.38.18 user
mpd: [vpn] IFACE: Up event

ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> mtu 1460
        inet 89.178.127.220 --> 195.14.38.13 netmask 0xffffffff

При обрыве связи.

mpd: pptp0: read: Operation timed out
mpd: pptp0: killing connection with 195.14.38.18:1723
mpd: pptp0-0: killing channel
mpd: [vpn] PPTP call terminated
mpd: [vpn] IPCP: LayerDown
mpd: [vpn] IFACE: Down event
mpd: [vpn] exec: /usr/local/etc/mpd/link-down.sh ng0 inet kotov111
mpd: [vpn] exec: /sbin/route delete 89.178.172.22 -iface lo0
mpd: [vpn] exec: /sbin/ifconfig ng0 down delete -link0
mpd: [vpn] LCP: LayerDown
mpd: [vpn] device: OPEN event in state DOWN

ng0: flags=8890<POINTOPOINT,NOARP,SIMPLEX,MULTICAST> mtu 1500

При восстановлении связи.

mpd: [vpn] IFACE: Up event
mpd: [vpn] setting interface ng0 MTU to 1460 bytes
mpd: [vpn] exec: /sbin/ifconfig ng0 89.178.177.92 195.14.38.18 netmask 0xffffffff -link0
--Мне кажется, что здесь косяк--
mpd: [vpn] exec: command returned 256
mpd: [vpn] exec: /sbin/route add 89.178.177.92 -iface lo0
mpd: [vpn] exec: /usr/local/etc/mpd/link-up.sh ng0 inet 89.178.177.92 195.14.38.18 user
mpd: [vpn] IFACE: Up event

ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> mtu 1460

Интерфейс поднят, но туннеля нет. Интернета, соответсвенно, тоже!

[root@serv /usr/local/etc/mpd]# netstat -rn
Routing tables
Internet:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default            195.14.38.18       UGS         0      614    rl0
10                 10.215.0.17        UGS         0        0    rl0
10.215/16          link#1             UC          0        0    rl0
10.215.0.17        00:15:fa:69:aa:c7  UHLW        5        0    rl0   1199
10.215.51.162      00:20:ed:bb:c9:21  UHLW        1        0    rl0   1179
10.215.253.1       00:15:58:07:dd:08  UHLW        1        0    rl0   1173
83.102/16          10.215.0.17        UGS         0        0    rl0
85.21/16           10.215.0.17        UGS         0        0    rl0
89.178.177.92      lo0                UHS         0      631    lo0
127.0.0.1          127.0.0.1          UH          0        0    lo0
192.168.0          link#2             UC          0        0    rl1
192.168.0.200      00:02:44:26:b7:24  UHLW        1     1330    rl1    809
195.14.38.18       10.215.0.17        UGHS        1       64    rl0
Тут вроде всё верно.

Привожу конфиги MPD

[root@serv /usr/local/etc/mpd]# cat mpd.conf
default:
        load vpn

vpn:
        new -i ng0 vpn vpn
        set bundle disable multilink
        set bundle authname user
        set bundle password pass
        set iface idle 0
        set iface up-script /usr/local/etc/mpd/link-up.sh
        set iface down-script /usr/local/etc/mpd/link-down.sh
        set link keep-alive 60 300
        set link accept chap
        set link no pap
        set bundle disable compression
        set ccp yes mpp-e40
        set ccp no mpp-e128
        set bundle disable crypt-reqd
        set ccp no mpp-stateless
        set ipcp no vjcomp
        set link mtu 1460
        open

[root@serv /usr/local/etc/mpd]# cat mpd.links
vpn:
        set link type pptp
        set pptp peer vpn.spb.corbina.net
        set pptp enable originate incoming outcall

[root@serv /usr/local/etc/mpd]# cat link-up.sh
#!/bin/sh
route delete $4
route add $4 10.215.0.17
default_route_old=`route -n get default 2>&1 | grep gateway | awk '{print $2}'`
if [ $default_route_old ]; then
echo $default_route_old > /var/tmp/default_route
route -nq change default $4
else
rm -f /var/tmp/default_route
route -nq add default $4
fi
/sbin/pfctl -Fnat -Fqueue -Frules -FSources -Finfo -FTables -Fosfp >> /var/tmp/link_up 2>&1
/sbin/pfctl -g -f /etc/pf.clear.conf >> /var/tmp/link_up

[root@serv /usr/local/etc/mpd]# cat link-down.sh
#!/bin/sh
if [ -r /var/tmp/default_route ]; then
default_route_old=`cat /var/tmp/default_route`
rm -f /var/tmp/default_route
route -nq change default $default_route_old
else
route -nq delete default
fi
/sbin/pfctl -Fnat -Fqueue -Frules -FSources -Finfo -FTables -Fosfp >> /var/tmp/link_down 2>&1
/sbin/pfctl -g -f /etc/pf.clear.conf >> /var/tmp/link_down

Система  FreeBSD 6.2-PRERELEASE
[admin@serv ~]$ mpd -v
Version 3.18

Заранее спасибо за помощь.