VPN:Poptop a padani, nekdy se vubec nevytoci

[Petr Hvězda]

Zdravim konferenci,

v posledni dobe velke problemy s provozem VPN pres predmet. Provozuji
verzi pptpd v1.3.4. na CentOS 5.3 a aktualnimi baliky.

Nejvetsi problemy jsou zpusobeny u O2 a to jak xDSL, tak mobilni CMDA/
HDSPA. U nekoho taky problemy u UPC a lokalnich WIFI provideru. Zadne
problemy jsem nezaznamenal u 4G od T-mobile.

dostavam v podstate tri ruzna hlaseni

Mar 16 11:00:15 mail pppd[10159]: Cannot determine ethernet address for
proxy ARP
Mar 16 11:08:00 mail pptpd[11570]: GRE: read(fd=8,buffer=610860,len=8196)
from PTY failed: status = -1 error = Input/output error, usually caused by
unexpected termination of pppd, check option syntax and pppd logs

a nebo to cele konci takhle

Mar 16 11:35:33 mail pptpd[15980]: CTRL: Client 85.160.112.230 control
connection started
Mar 16 11:35:33 mail pptpd[15980]: CTRL: Starting call (launching pppd,
opening GRE)
Mar 16 11:35:33 mail pppd[15981]: pppd 2.4.4 started by root, uid 0
Mar 16 11:35:33 mail pppd[15981]: Using interface ppp0
Mar 16 11:35:33 mail pppd[15981]: Connect: ppp0 <--> /dev/pts/1
Mar 16 11:35:33 mail pptpd[15980]: GRE: read(fd=7,buffer=6087c0,len=8260)
from network failed: status = -1 error = Protocol not available
Mar 16 11:35:33 mail pptpd[15980]: CTRL: GRE read or PTY write failed
(gre,pty)=(7,6)
Mar 16 11:35:33 mail pppd[15981]: Modem hangup
Mar 16 11:35:33 mail pppd[15981]: Connection terminated.
Mar 16 11:35:33 mail pppd[15981]: Exit.
Mar 16 11:35:33 mail pptpd[15980]: CTRL: Client 85.160.112.230 control
connection finished

posledni chyba je nejcastejsi a vyvolava na klientu chybu 619.

pripojuji par konfiguracnich souboru, ale takto to vzdy jelo bez problemu

/etc/ppp/options.pptpd
name pptpd
mtu 1000
mru 1000
debug
refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
require-mppe-128
ms-dns 192.168.xx.xx
proxyarp
lock
nobsdcomp
novj
novjccomp
nologfd

 /etc/ppp/pppoe-server-options
# PPP options for the PPPoE server
# LIC: GPL
require-pap
login
lcp-echo-interval 3600
#lcp-echo-interval 10
lcp-echo-failure 24
#lcp-echo-failure 2

zde jsem to zkousel zvednout, ale k nicemu to nevedlo

/etc/pptpd.conf
speed 115200
option /etc/ppp/options.pptpd
localip 192.168.x.1
remoteip 192.168.x.53-253

chap-secrets mam asi v poradku :)

Diky za kazdou radu.

S pozdravem,

-- 
Petr Hvězda