Trouble with PPPoE

U

UserQ

I have a server with
Code: 
uname -a
FreeBSD homenet.lan 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Fri Sep 25 23:28:34 EEST 2009

Work as router with pppoe connection to provider, earlier works good but last few day drop connection and after restarting in logs are writes

Code: 
Jan  5 19:05:11 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x45f4 (unrecognised protocol)
Jan  5 19:05:11 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xc3a3 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x0d72 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x5c72 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x6a23 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x59c5 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x4cee (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x152e (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x0f78 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x5985 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x4b42 (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xcc5b (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x609c (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xd0da (unrecognised protocol)
Jan  5 19:05:12 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x134a (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xff27 (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x970b (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xef33 (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xdcb0 (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xc929 (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0xaf01 (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x4fcc (unrecognised protocol)
Jan  5 19:05:13 homenet ppp[1357]: tun0: Phase: Unknown protocol 0x8fae (unrecognised protocol)
Jan  5 19:05:14 homenet ppp[1357]: tun0: Phase: Signal 15, terminate.
Jan  5 19:05:19 homenet ppp[2215]: Phase: Using interface: tun0
Jan  5 19:05:19 homenet ppp[2215]: Phase: deflink: Created in closed state
Jan  5 19:05:19 homenet ppp[2215]: tun0: Command: megas: set device PPPoE:re0
Jan  5 19:05:19 homenet ppp[2215]: tun0: Command: megas: set authname magic
Jan  5 19:05:19 homenet ppp[2215]: tun0: Command: megas: set authkey ********
Jan  5 19:05:19 homenet ppp[2215]: tun0: Command: megas: enable dns
Jan  5 19:05:19 homenet ppp[2215]: tun0: Command: megas: add default HISADDR
Jan  5 19:05:19 homenet ppp[2216]: tun0: Phase: PPP Started (ddial mode).
Jan  5 19:05:19 homenet ppp[2216]: tun0: Phase: bundle: Establish
Jan  5 19:05:19 homenet ppp[2216]: tun0: Phase: deflink: closed -> opening
Jan  5 19:05:19 homenet ppp[2216]: tun0: Phase: deflink: Connected!
Jan  5 19:05:19 homenet ppp[2216]: tun0: Phase: deflink: opening -> dial
Jan  5 19:05:19 homenet ppp[2216]: tun0: Phase: deflink: dial -> carrier
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: Received NGM_PPPOE_ACNAME (hook "point05.uch.net")
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: Received NGM_PPPOE_SESSIONID
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: Received NGM_PPPOE_SUCCESS
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: deflink: carrier -> login
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: deflink: login -> lcp
Jan  5 19:05:20 homenet ppp[2216]: tun0: Warning: deflink: Reducing configured MRU from 1500 to 1492
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: bundle: Authenticate
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: deflink: his = CHAP 0x81, mine = none
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: Chap Input: CHALLENGE (16 bytes)
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: Chap Output: RESPONSE (magic)
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: Chap Input: SUCCESS (S=05CAF6470683CA9BF940ABB2827292AFC7CEEDB9)
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: deflink: lcp -> open
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: bundle: Network
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: Unknown protocol 0x8053 (Encryption Control Protocol)
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: deflink: IPV6CP protocol reject closes IPV6CP !
Jan  5 19:05:20 homenet ppp[2216]: tun0: Warning: 0.0.0.0/0: Change route failed: errno: No such process
Jan  5 19:05:20 homenet ppp[2216]: tun0: Warning: ff02:3::/32: Change route failed: errno: Network is unreachable
Jan  5 19:05:20 homenet ppp[2216]: tun0: Phase: deflink: IPV6CP protocol reject closes IPV6CP !
Jan  5 19:05:20 homenet ppp[2216]: tun0: Warning: 0.0.0.0/0: Change route failed: errno: No such process
Jan  5 19:05:20 homenet ppp[2216]: tun0: Warning: ff02:3::/32: Change route failed: errno: Network is unreachable
Jan  5 19:05:23 homenet ppp[2216]: tun0: Phase: deflink: IPV6CP protocol reject closes IPV6CP !
Jan  5 19:05:32 homenet last message repeated 3 times
Jan  5 19:06:20 homenet ppp[2216]: tun0: Phase: deflink: HDLC errors -> FCS: 0, ADDR: 0, COMD: 0, PROTO: 1

How fix that? The connection can drop 10 times in hour. It's not good for server work.
 
If you haven't changed anything related to PPPoE (software, hardware), you should ask your provider then.
 
Code: 
cat /etc/ppp/ppp.conf


 # Ensure that "device" references the correct serial port
 # for your modem. (cuad0 = COM1, cuad1 = COM2)
 #
 #set device /dev/cuad1

 #set speed 115200
 #set dial "ABORT BUSY ABORT NO\\sCARRIER TIMEOUT 5 \
           \"\" AT OK-AT-OK ATE1Q0 OK \\dATDT\\T TIMEOUT 40 CONNECT"
 #set timeout 180                       # 3 minute idle timer (the default)
 #enable dns                            # request DNS info (for resolv.conf)
 set redial 3 90
 disable ipv6
 #
 # edit the next three lines and replace the items in caps with
 # the values which have been assigned by your ISP.
 #

 #set phone PHONE_NUM
 #set authname USERNAME
 #set authkey PASSWORD

 #set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
 #add default HISADDR                   # Add a (sticky) default route


default:
 set log Phase tun command
megas:
 set device PPPoE:re0
 set authname magic
 set authkey Pv99Bet3X
 enable dns
 add default HISADDR
and
Code: 
 cat /etc/firewall | grep -v ^#
fw="/sbin/ipfw -q"
inif="re0"
outif="tun0"
inip="172.20.34.100"
inip1="172.20.35.1"
innet="172.20.34.0/24"
innet1="172.20.35.0/24"
${fw} -f flush
${fw} add allow all from any to any via lo0
${fw} add deny log all from any to 127.0.0.0/8
${fw} add deny log all from 127.0.0.0/8 to any
${fw} add deny log ip from any to 169.254.0.0/16 in via ${outif}
${fw} add divert natd all from ${innet} to any out via ${outif}
${fw} add divert natd all from any to me in via ${outif}
${fw} add divert natd all from ${innet1} to any out via ${outif}
${fw} add divert natd all from any to me in via ${outif}
${fw} add allow tcp from any to any via ${outif} established
${fw} add allow tcp from ${inip},me to any out xmit ${outif} setup
${fw} add allow tcp from ${inip1},me to any out xmit ${outif} setup
${fw} add allow all from ${innet} to any out via ${inif}
${fw} add allow all from any to ${innet} in via ${inif}
${fw} add allow all from ${innet1} to any out via ${inif}
${fw} add allow all from any to ${innet1} in via ${inif}

${fw} add allow icmp from any to any icmptypes 0,3,8,11
${fw} add reset log tcp from any to any 113 in recv ${outif}
${fw} add allow udp from me to any out via ${outif}
${fw} add allow udp from any to me 53 in via ${outif}
${fw} add allow udp from any 53 to me in via ${outif}
${fw} add allow udp from any 123 to me in via ${outif}

${fw} add allow udp from ${innet} to any 53
${fw} add allow udp from any 53 to ${innet}
${fw} add allow udp from ${innet} to any 123
${fw} add allow udp from any 123 to ${innet}
${fw} add allow tcp from ${innet} to any in via ${inif}
${fw} add allow tcp from any to ${inet} out via ${inif}
${fw} add allow tcp from any 20 to ${innet} in via ${outif}
${fw} add allow ip from any to any
 
This is what I use:

Code: 
default:
 set log Phase Chat LCP LQM IPCP CCP tun command

isdsl:
 set device PPPoE:adsl
 set timeout 0
 set reconnect 10 0
 set redial 10 0
 set authname xxxx
 set authkey xxxx
 set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
 add default HISADDR
 enable dns
 enable lqr echo
 set lqrperiod 60
 disable iface-alias
 disable ipv6cp
 disable mppe
 nat enable yes
 nat same_ports yes
 nat use_sockets no
 nat unregistered_only yes
 nat deny_incoming yes
 
I disable ipv6 in ppp.conf but still have a trouble with pppoe connection

Code: 
Jan  9 14:16:11 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xfc2d (unrecognised protocol)
Jan  9 14:16:11 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xd792 (unrecognised protocol)
Jan  9 14:16:11 homenet ppp[65200]: tun0: Phase: Unknown protocol 0x2d14 (unrecognised protocol)
Jan  9 14:16:12 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xec92 (unrecognised protocol)
Jan  9 14:16:12 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xd727 (unrecognised protocol)
Jan  9 14:16:12 homenet ppp[65200]: tun0: Phase: Unknown protocol 0x9bb0 (unrecognised protocol)
Jan  9 14:16:12 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xc9b0 (unrecognised protocol)
Jan  9 14:16:12 homenet ppp[65200]: tun0: Phase: Unknown protocol 0x6d8b (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Unknown protocol 0x35d4 (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Unknown protocol 0x60bf (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xc0dc (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xe717 (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Unknown protocol 0x1cc6 (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Unknown protocol 0x4045 (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Unknown protocol 0xbbc2 (unrecognised protocol)
Jan  9 14:16:13 homenet ppp[65200]: tun0: Phase: Signal 15, terminate.
Jan  9 14:16:19 homenet ppp[65924]: Phase: Using interface: tun0
Jan  9 14:16:19 homenet ppp[65924]: Phase: deflink: Created in closed state
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: set device PPPoE:re0
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: set timeout 0
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: set authname magic
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: set authkey ********
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: enable dns
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: disable ipv6
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: disable ipv6cp
Jan  9 14:16:19 homenet ppp[65924]: tun0: Command: megas: add default HISADDR
Jan  9 14:16:19 homenet ppp[65925]: tun0: Phase: PPP Started (ddial mode).
Jan  9 14:16:19 homenet ppp[65925]: tun0: Phase: bundle: Establish
Jan  9 14:16:19 homenet ppp[65925]: tun0: Phase: deflink: closed -> opening
Jan  9 14:16:19 homenet ppp[65925]: tun0: Phase: deflink: Connected!
Jan  9 14:16:19 homenet ppp[65925]: tun0: Phase: deflink: opening -> dial
Jan  9 14:16:19 homenet ppp[65925]: tun0: Phase: deflink: dial -> carrier
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: Received NGM_PPPOE_ACNAME (hook "point06.uch.net")
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: Received NGM_PPPOE_SESSIONID
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: Received NGM_PPPOE_SUCCESS
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: deflink: carrier -> login
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: deflink: login -> lcp
Jan  9 14:16:20 homenet ppp[65925]: tun0: Warning: deflink: Reducing configured MRU from 1500 to 1492
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: bundle: Authenticate
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: deflink: his = CHAP 0x81, mine = none
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: Chap Input: CHALLENGE (16 bytes)
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: Chap Output: RESPONSE (magic)
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: Chap Input: SUCCESS (S=936404A40D97B3113872E758D98934ECD070072B)
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: deflink: lcp -> open
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: bundle: Network
Jan  9 14:16:20 homenet ppp[65925]: tun0: Phase: Unknown protocol 0x8053 (Encryption Control Protocol)
Jan  9 14:16:20 homenet ppp[65925]: tun0: Warning: 0.0.0.0/0: Change route failed: errno: No such process
Jan  9 14:16:20 homenet ppp[65925]: tun0: Warning: ff02:3::/32: Change route failed: errno: Network is unreachable
Jan  9 14:16:20 homenet ppp[65925]: tun0: Warning: 0.0.0.0/0: Change route failed: errno: No such process
Jan  9 14:16:20 homenet ppp[65925]: tun0: Warning: ff02:3::/32: Change route failed: errno: Network is unreachable
Jan  9 14:17:20 homenet ppp[65925]: tun0: Phase: deflink: HDLC errors -> FCS: 0, ADDR: 0, COMD: 0, PROTO: 1
 
Are you using some compression/encryption? Loss of compression/encryption synchronization with peer could cause broken protocol headers.
 
No don't use. I disable ipv6 in kernel

Code: 
cat /usr/src/sys/i386/conf/HOMENET | grep -A 1 INET6
#options        INET6                   # IPv6 communications protocols
#options        SCTP                    # Stream Control Transmission Protocol

All logs ppp restart look's
 

Attachments

  • ppp.log.zip
    2.2 KB · Views: 179
As I know. I try different ppp settings. At that time are:
Code: 
#################################################################
# PPP  Sample Configuration File
# Originally written by Toshiharu OHNO
# Simplified 5/14/1999 by wself@cdrom.com
#
# See /usr/share/examples/ppp/ for some examples
#
# $FreeBSD: src/etc/ppp/ppp.conf,v 1.10.20.1 2009/04/15 03:14:26 kensmith Exp $
#################################################################

#default:
# set log Phase Chat LCP IPCP CCP tun command
# ident user-ppp VERSION (built COMPILATIONDATE)

 # Ensure that "device" references the correct serial port
 # for your modem. (cuad0 = COM1, cuad1 = COM2)
 #
 #set device /dev/cuad1

 #set speed 115200
 #set dial "ABORT BUSY ABORT NO\\sCARRIER TIMEOUT 5 \
           \"\" AT OK-AT-OK ATE1Q0 OK \\dATDT\\T TIMEOUT 40 CONNECT"
 #set timeout 180                       # 3 minute idle timer (the default)
 #enable dns                            # request DNS info (for resolv.conf)
 set redial 3 90
 #disable ipv6
 #papchap:
 #
 # edit the next three lines and replace the items in caps with
 # the values which have been assigned by your ISP.
 #

 #set phone PHONE_NUM
 #set authname USERNAME
 #set authkey PASSWORD

 #set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
 #add default HISADDR                   # Add a (sticky) default route


#Начало файла
default:
 set log Phase tun command
megas:
 set device PPPoE:re0
 set mtu max 1492
 set mtu max 1492
 enable lqr
 accept lqr
 enable mssfixup
 set speed sync
 #set speed sync
 set timeout 0
 #disable acfcomp protocomp
 #deny acfcomp
 set authname magic
 set authkey Pv99Bet3X
 #set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
 set openmode passive
 set stopped 9
 #disable pred1
 disable pred1 deflate deflate24 protocomp acfcomp shortseq vj
 deny pred1 deflate deflate24 protocomp acfcomp shortseq vj
 enable dns
 disable ipv6
 disable ipv6cp
 #disable mssfixup
 #enable mssfixup
 add default HISADDR
#Конец файла

PS How edit my post?
 
I almost fixed that problem, but sometimes have disconnect
in ppp.log write
Code: 
Jan 21 05:33:13 homenet ppp[34766]: tun0: Phase: Signal 15, terminate.
Jan 21 05:33:13 homenet ppp[34766]: tun0: Phase: bundle: Terminate
Jan 21 05:33:13 homenet ppp[34766]: tun0: Phase: deflink: open -> lcp
Jan 21 05:33:13 homenet ppp[34766]: tun0: Warning: 0.0.0.0/0: Change route failed: errno: No such process
Jan 21 05:33:19 homenet ppp[37149]: Phase: Using interface: tun0
Jan 21 05:33:19 homenet ppp[37149]: Phase: deflink: Created in closed state
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set device PPPoE:re0
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set mtu max 1492
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set mtu max 1492
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: enable lqr
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: accept lqr
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: enable mssfixup
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set speed sync
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set timeout 0
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set authname magic
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set authkey ********
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set openmode passive
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: set stopped 9
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: disable pred1 deflate deflate24 protocomp acfcomp shortseq vj
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: deny pred1 deflate deflate24 protocomp acfcomp shortseq vj
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: enable dns
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: disable ipv6
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: disable ipv6cp
Jan 21 05:33:19 homenet ppp[37149]: tun0: Command: megas: add default HISADDR
Jan 21 05:33:19 homenet ppp[37150]: tun0: Phase: PPP Started (ddial mode).
Jan 21 05:33:19 homenet ppp[37150]: tun0: Phase: bundle: Establish
Jan 21 05:33:19 homenet ppp[37150]: tun0: Phase: deflink: closed -> opening
Jan 21 05:33:19 homenet ppp[37150]: tun0: Phase: deflink: Connected!
Jan 21 05:33:19 homenet ppp[37150]: tun0: Phase: deflink: opening -> dial
Jan 21 05:33:19 homenet ppp[37150]: tun0: Phase: deflink: dial -> carrier
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Received NGM_PPPOE_ACNAME (hook "point06.uch.net")
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Received NGM_PPPOE_SESSIONID
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Received NGM_PPPOE_SUCCESS
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: deflink: carrier -> login
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: deflink: login -> lcp
Jan 21 05:33:21 homenet ppp[37150]: tun0: Warning: deflink: Reducing configured MRU from 1500 to 1492
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: bundle: Authenticate
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: deflink: his = CHAP 0x81, mine = none
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Chap Input: CHALLENGE (16 bytes)
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Chap Output: RESPONSE (magic)
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Chap Input: SUCCESS (S=8525A8DAE31F0AB696DAA9D0810E2DDEB2CE171A)
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: deflink: lcp -> open
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: bundle: Network
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Unknown protocol 0x8053 (Encryption Control Protocol)
Jan 21 05:33:21 homenet ppp[37150]: tun0: Warning: 0.0.0.0/0: Change route failed: errno: No such process
Jan 21 05:34:21 homenet ppp[37150]: tun0: Phase: deflink: HDLC errors -> FCS: 0, ADDR: 0, COMD: 0, PROTO: 1

Me interesting such line, how fix him?
Code: 
Jan 21 05:33:21 homenet ppp[37150]: tun0: Phase: Unknown protocol 0x8053 (Encryption Control Protocol)

And

Code: 
Jan 21 05:33:21 homenet ppp[37150]: tun0: Warning: deflink: Reducing configured MRU from 1500 to 1492
 
It's normal for my DSL line to drop every 20 hours - the box is forced to re-authenticate. I believe the option is ddial and it'll continually renew the connection when it's dropped.

DSL isn't like ethernet - it should not have 1500 for the MTU.
 
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