#3 PPPD not receiving

[James Vodan]

I am having problems getting l2tp to talk to pppd

Seems to send but fails to receive, I do see packets
returning (tcpdump ) to l2tpd but they don’t seem to be
getting to pppd

Anyone have any ideas where I am going wrong

I don’t think this is an ipsec problem as I have l2tpd
with full debugging turned on and I see watch appears
to be communications in both directions to the client
(Win XP)

l2tpd.conf included after debug.

Am using rp-l2tp-0.4

PPPD Debug info

Jul 21 14:03:50 bfa pppd[20412]: pppd options in effect:

Jul 21 14:03:50 bfa pppd[20412]: debug debug
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: kdebug 7
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: nodetach
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: logfile
/var/log/l2tpd.log # (from /etc/ppp/options)

Jul 21 14:03:50 bfa pppd[20412]: dump # (from
/etc/ppp/options)

Jul 21 14:03:50 bfa pppd[20412]: require-pap
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: login # (from
command line)

Jul 21 14:03:50 bfa pppd[20412]: lock # (from
/etc/ppp/options)

Jul 21 14:03:50 bfa pppd[20412]: local # (from
/etc/ppp/options)

Jul 21 14:03:50 bfa pppd[20412]: sync # (from
command line)

Jul 21 14:03:50 bfa pppd[20412]: noaccomp
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: nopcomp
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: passive
# (from /etc/ppp/options)

Jul 21 14:03:50 bfa pppd[20412]: lcp-echo-failure 6
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: lcp-echo-interval 30
# (from command line)

Jul 21 14:03:50 bfa pppd[20412]: novj # (from
command line)

Jul 21 14:03:50 bfa pppd[20412]: Using interface ppp0

Jul 21 14:03:50 bfa pppd[20412]: Connect: ppp0 <-->
/dev/ttyp4

Jul 21 14:03:38 bfa last message repeated 6 times

Jul 21 14:03:50 bfa /netbsd: ppp0 output:
ff03c021010100140206000000000304c02305062ffd38dc

Jul 21 14:03:50 bfa /netbsd: ppp0 output:ff 03 c0 21 01
01 00 14 02 06 00 00 00 00 03 04 ...!............

Jul 21 14:03:50 bfa /netbsd: ppp0 output:c0 23 05 06 2f
fd 38 dc .#../.8.

Jul 21 14:03:50 bfa /netbsd: ppp0: missing UI (0x3),
got 0xc0

Jul 21 14:03:53 bfa /netbsd: ppp0 output:
ff03c021010100140206000000000304c02305062ffd38dc

Jul 21 14:05:30 bfa /netbsd: ppp0 output:c0 23 05 06 2a
b4 5f d8 .#..*._.

Jul 21 14:05:30 bfa /netbsd: ppp0: missing UI (0x3),
got 0xc0

Jul 21 14:05:33 bfa /netbsd: ppp0 output:
ff03c021010100140206000000000304c02305062ab45fd8

Jul 21 14:06:00 bfa pppd[14589]: LCP: timeout sending
Config-Requests

pppdlog

sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap>
<magic 0x2ab45fd8>]

sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap>
<magic 0x2ab45fd8>]

sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap>
<magic 0x2ab45fd8>]

sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth pap>
<magic 0x2ab45fd8>]

LCP: timeout sending Config-Requests

<l2tpd.conf>

# Global section (by default, we start in global mode)

global

# Load handlers

load-handler "sync-pppd.so"

load-handler "cmd.so"

# Bind address

listen-port 1701

# Configure the sync-pppd handler. You MUST have a
"section sync-pppd" line

# even if you don't set any options.

section sync-pppd

pppd-path /usr/sbin/pppd

lns-pppd-opts "login noauth debug kdebug 7 require-pap
10.0.0.1:10.0.0.2 lcp-echo-interval 30 lcp-ech

o-failure 6"

#lns-pppd-opts "file /etc/ppp/options"

#lac-pppd-opts "user example name example noipdefault
ipcp-accept-local ipcp-accept-remote lcp-echo-i

nterval 30 lcp-echo-failure 6"

# Peer section

section peer

peer 0.0.0.0

mask 0

#secret s3cr3t

port 1701

lac-handler sync-pppd

lns-handler sync-pppd

#hide-avps no

# Configure the cmd handler. You MUST have a "section
cmd" line

# even if you don't set any options.

section cmd

ß------End->

James Vodanovich

[Don Stokes]

Logged In: YES
user_id=1645659
Originator: NO

This may be the same problem I just came across, see patch 1596730.