Re: pptp

[Artem Chuprina <ran@ran.pp.ru>]

Alexander A. Vlasov -> debian-russian@lists.debian.org  @ Thu, 27 Jan 2005 14:07:33 +0200:

 AAV> Добрый день.

 AAV> Пытаюсь подключиться к vpn через pptp, без шифрования. Сервер --
 AAV> mpd/FreeBSD. Клиент -- собственно, я. Проблема в следующем: соединение
 AAV> устанавливается и пакеты ходят, но только секунду 8( После чего получаю
 AAV> обрыв. Настройки взяты с pptpclient.sf.net

 AAV> ===> /etc/ppp/peers/wellcom
 AAV> pty "pptp x.x.x.x --nolaunchpppd"
 AAV> name zulu
 AAV> remotename wellcom
 AAV> file /etc/ppp/options.wellcom
 AAV> ipparam wellcom

 AAV> ===> /etc/ppp/options.wellcom
 AAV> lock noauth nobsdcomp nodeflate

 AAV> ===> /etc/ppp/chap-secrets
 AAV> zulu    wellcom xxxxxxxx      *
 AAV> wellcom zulu    xxxxxxxx      *

 AAV> после этого запускаю 
 AAV> # pon wellcom debug dump logfd 2 nodetach

 AAV> и вижу следющее:

 AAV> pppd options in effect:
 AAV> debug           # (from command line)
 AAV> nodetach        # (from command line)
 AAV> logfd 2         # (from command line)
 AAV> dump            # (from command line)
 AAV> noauth          # (from /etc/ppp/options.wellcom)
 AAV> name zulu       # (from /etc/ppp/peers/wellcom)
 AAV> remotename wellcom              # (from /etc/ppp/peers/wellcom)
 AAV>                 # (from /etc/ppp/options.wellcom)
 AAV> pty pptp x.x.x.x --nolaunchpppd   # (from /etc/ppp/peers/wellcom)
 AAV> crtscts         # (from /etc/ppp/options)
 AAV>                 # (from /etc/ppp/options)
 AAV> asyncmap 0      # (from /etc/ppp/options)
 AAV> lcp-echo-failure 4              # (from /etc/ppp/options)
 AAV> lcp-echo-interval 30            # (from /etc/ppp/options)
 AAV> hide-password           # (from /etc/ppp/options)
 AAV> ipparam wellcom         # (from /etc/ppp/peers/wellcom)
 AAV> proxyarp                # (from /etc/ppp/options)
 AAV> nobsdcomp               # (from /etc/ppp/options.wellcom)
 AAV> nodeflate               # (from /etc/ppp/options.wellcom)
 AAV> noipx           # (from /etc/ppp/options)
 AAV> using channel 9
 AAV> Using interface ppp0
 AAV> Connect: ppp0 <--> /dev/pts/1
 AAV> sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x946355fe> <pcomp> <accomp>]
 AAV> rcvd [LCP ConfReq id=0x57 <accomp> <pcomp> <mru 1500> <magic 0x8fb0b9d0> <auth chap MS-v2>]
 AAV> sent [LCP ConfAck id=0x57 <accomp> <pcomp> <mru 1500> <magic 0x8fb0b9d0> <auth chap MS-v2>]
 AAV> rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x946355fe> <pcomp> <accomp>]
 AAV> sent [LCP EchoReq id=0x0 magic=0x946355fe]
 AAV> rcvd [LCP EchoRep id=0x0 magic=0x8fb0b9d0]
 AAV> rcvd [CHAP Challenge id=0x2 <bb1e6894259386ddd9e8fceb705eb0da>, name = ""]
 AAV> sent [CHAP Response id=0x2 <3ff19cabd747758e2b20a3bbcf1af55600000000000000009a2a4ed87d8880dd7f1ea92413c88313916ebdd15352c4bb00>, name = "zulu"]
 AAV> rcvd [CHAP Success id=0x2 "S=4DAFE585B2546BF3D3042258B7629EC3D2231CD1"]
 AAV> sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 10.0.0.251>]
 AAV> rcvd [IPCP ConfReq id=0x6 <addr 10.11.0.50> <compress VJ 0f 00>]
 AAV> sent [IPCP ConfAck id=0x6 <addr 10.11.0.50> <compress VJ 0f 00>]
 AAV> rcvd [IPCP ConfNak id=0x1 <addr 10.11.2.8>]
 AAV> sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 10.11.2.8>]
 AAV> rcvd [IPCP ConfAck id=0x2 <compress VJ 0f 01> <addr 10.11.2.8>]
 AAV> Cannot determine ethernet address for proxy ARP
 AAV> local  IP address 10.11.2.8
 AAV> remote IP address 10.11.0.50
 AAV> Script /etc/ppp/ip-up started (pid 2666)
 AAV> Script /etc/ppp/ip-up finished (pid 2666), status = 0x0
 AAV> rcvd [CCP ConfReq id=0x15 <mppe +H -M +S +L -D -C>]
 AAV> sent [CCP ConfReq id=0x1]
 AAV> sent [CCP ConfRej id=0x15 <mppe +H -M +S +L -D -C>]
 AAV> rcvd [CCP ConfAck id=0x1]
 AAV> rcvd [CCP ConfReq id=0x16]
 AAV> sent [CCP ConfAck id=0x16]
 AAV> rcvd [CCP TermReq id=0x17]
 AAV> CCP terminated by peer
 AAV> sent [CCP TermAck id=0x17]
 AAV> Compression disabled by peer.
 AAV> rcvd [LCP TermReq id=0x58]
 AAV> LCP terminated by peer
 AAV> Connect time 0.1 minutes.
 AAV> Sent 22 bytes, received 22 bytes.
 AAV> Script /etc/ppp/ip-down started (pid 2672)
 AAV> sent [LCP TermAck id=0x58]
 AAV> Script pptp x.x.x.x --nolaunchpppd finished (pid 2662), status = 0x0
 AAV> Modem hangup
 AAV> Connection terminated.
 AAV> Waiting for 1 child processes...
 AAV> script /etc/ppp/ip-down, pid 2672
 AAV> Script /etc/ppp/ip-down finished (pid 2672), status = 0x0

 AAV> Не сталкивался ли кто-то с таким поведением? Где зарыта собака?

Подозрение вызывает в основном твой режект mppe.  Однако, отвал сразу
после него, и если тот конец полагает его обязательным, а не просто так,
на всякий случай запрашивает, то вполне резонно, что он рвет cвязь.

-- 
Artem Chuprina
RFC2822: <ran{}ran.pp.ru> Jabber: ran@jabber.ran.pp.ru