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Date:      Tue, 9 Sep 2003 10:55:09 +0100
From:      "Dan Hardiker" <dhardiker@eorigen.com>
To:        "Michael Bretterklieber" <mbretter@a-quadrat.at>
Cc:        freebsd-net@freebsd.org
Subject:   Re: MPD Issues - Errors and Mysterious Packet Loss
Message-ID:  <00e601c376b8$746fcd50$3601a8c0@ws4>
References:  <024601c37607$7de4ef70$3601a8c0@ws4> <Pine.WNT.4.56.0309091021040.3872@BRUTUS> <005b01c376af$c60693a0$3601a8c0@ws4> <Pine.WNT.4.56.0309091106380.3872@BRUTUS>

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Just a bit more information which might help clear things up:

If I ping from 192.168.1.3 to 192.168.1.101 and leave it going - ALL my
traffic from the XP box to the LAN works fine (in moderation). For example -
as long as the server is pinging me (just a standard "ping -t
192.168.1.101") I can ping the server without any problems (even with -l
1500). I can surf the web even and no received errors are shown.

That is until I download a 500mb file and then it starts to chug running at
254KB/s on a 10Mbit lan - although the pings to the XP box keep going and
only get 1-2% "No buffer space" errors - but the errors 45mb into the file
are up to 1350.

Shed any more light? (Im just dreaming up random test scenarios)

BTW: Heres my mpd.log (left running through all the tests, not shut down)

Sep  9 10:25:20 armadillo mpd: mpd: pid 26273, version 3.14
(root@armadillo.lan.eorigen.com 10:05  9-Sep-2003)
Sep  9 10:25:20 armadillo mpd: [pptp0] ppp node is "mpd26273-pptp0"
Sep  9 10:25:20 armadillo mpd: mpd: local IP address for PPTP is 82.68.60.9
Sep  9 10:25:20 armadillo mpd: [pptp0] using interface ng0
Sep  9 10:25:20 armadillo mpd: mpd: pid 26275, version 3.14
(root@armadillo.lan.eorigen.com 10:05  9-Sep-2003)
Sep  9 10:25:20 armadillo mpd: [pptp1] ppp node is "mpd26273-pptp1"
Sep  9 10:25:20 armadillo mpd: [pptp5] ppp node is "mpd26275-pptp5"
Sep  9 10:25:20 armadillo mpd: [pptp1] using interface ng1
Sep  9 10:25:20 armadillo mpd: mpd: local IP address for PPTP is
80.177.231.130
Sep  9 10:25:20 armadillo mpd: [pptp2] ppp node is "mpd26273-pptp2"
Sep  9 10:25:20 armadillo mpd: [pptp5] using interface ng5
Sep  9 10:25:20 armadillo mpd: [pptp2] using interface ng2
Sep  9 10:25:20 armadillo mpd: [pptp6] ppp node is "mpd26275-pptp6"
Sep  9 10:25:20 armadillo mpd: [pptp3] ppp node is "mpd26273-pptp3"
Sep  9 10:25:20 armadillo mpd: [pptp6] using interface ng6
Sep  9 10:25:20 armadillo mpd: [pptp3] using interface ng3
Sep  9 10:25:20 armadillo mpd: [pptp7] ppp node is "mpd26275-pptp7"
Sep  9 10:25:20 armadillo mpd: [pptp4] ppp node is "mpd26273-pptp4"
Sep  9 10:25:20 armadillo mpd: [pptp4] using interface ng4
Sep  9 10:25:20 armadillo mpd: [pptp7] using interface ng7
Sep  9 10:25:20 armadillo mpd: [pptp8] ppp node is "mpd26275-pptp8"
Sep  9 10:25:20 armadillo mpd: [pptp8] using interface ng8
Sep  9 10:25:20 armadillo mpd: [pptp9] ppp node is "mpd26275-pptp9"
Sep  9 10:25:20 armadillo mpd: [pptp9] using interface ng9
Sep  9 10:25:42 armadillo mpd: mpd: PPTP connection from 82.68.60.10:3065
Sep  9 10:25:42 armadillo mpd: pptp0: attached to connection with
82.68.60.10:3065
Sep  9 10:25:42 armadillo mpd: [pptp0] IFACE: Open event
Sep  9 10:25:42 armadillo mpd: [pptp0] IPCP: Open event
Sep  9 10:25:42 armadillo mpd: [pptp0] IPCP: state change Initial -->
Starting
Sep  9 10:25:42 armadillo mpd: [pptp0] IPCP: LayerStart
Sep  9 10:25:42 armadillo mpd: [pptp0] IPCP: Open event
Sep  9 10:25:42 armadillo mpd: [pptp0] bundle: OPEN event in state CLOSED
Sep  9 10:25:42 armadillo mpd: [pptp0] opening link "pptp0"...
Sep  9 10:25:42 armadillo mpd: [pptp0] link: OPEN event
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: Open event
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: state change Initial -->
Starting
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: LayerStart
Sep  9 10:25:42 armadillo mpd: [pptp0] device: OPEN event in state DOWN
Sep  9 10:25:42 armadillo mpd: [pptp0] attaching to peer's outgoing call
Sep  9 10:25:42 armadillo mpd: [pptp0] device is now in state OPENING
Sep  9 10:25:42 armadillo mpd: [pptp0] device: UP event in state OPENING
Sep  9 10:25:42 armadillo mpd: [pptp0] device is now in state UP
Sep  9 10:25:42 armadillo mpd: [pptp0] link: UP event
Sep  9 10:25:42 armadillo mpd: [pptp0] link: origination is remote
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: Up event
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: state change Starting -->
Req-Sent
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: phase shift DEAD --> ESTABLISH
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: SendConfigReq #1
Sep  9 10:25:42 armadillo mpd:  ACFCOMP
Sep  9 10:25:42 armadillo mpd:  PROTOCOMP
Sep  9 10:25:42 armadillo mpd:  MRU 1500
Sep  9 10:25:42 armadillo mpd:  MAGICNUM 7dbc10b4
Sep  9 10:25:42 armadillo mpd:  AUTHPROTO CHAP MSOFTv2
Sep  9 10:25:42 armadillo mpd:  MP MRRU 1600
Sep  9 10:25:42 armadillo mpd:  MP SHORTSEQ
Sep  9 10:25:42 armadillo mpd:  ENDPOINTDISC [802.1] 00 04 75 99 59 37
Sep  9 10:25:42 armadillo mpd: pptp0-0: ignoring SetLinkInfo
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: rec'd Configure Request #0 link
0 (Req-Sent)
Sep  9 10:25:42 armadillo mpd:  MRU 1400
Sep  9 10:25:42 armadillo mpd:  MAGICNUM 0e6c5920
Sep  9 10:25:42 armadillo mpd:  PROTOCOMP
Sep  9 10:25:42 armadillo mpd:  ACFCOMP
Sep  9 10:25:42 armadillo mpd:  CALLBACK
Sep  9 10:25:42 armadillo mpd:    Not supported
Sep  9 10:25:42 armadillo mpd:  MP MRRU 1614
Sep  9 10:25:42 armadillo mpd:  ENDPOINTDISC [LOCAL] 45 fb 34 03 98 28 4b 1f
a0 0c 84 c1 c1 3e 3b 05 00 00 00 04
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: SendConfigRej #0
Sep  9 10:25:42 armadillo mpd:  CALLBACK
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: rec'd Configure Request #1 link
0 (Req-Sent)
Sep  9 10:25:42 armadillo mpd:  MRU 1400
Sep  9 10:25:42 armadillo mpd:  MAGICNUM 0e6c5920
Sep  9 10:25:42 armadillo mpd:  PROTOCOMP
Sep  9 10:25:42 armadillo mpd:  ACFCOMP
Sep  9 10:25:42 armadillo mpd:  MP MRRU 1614
Sep  9 10:25:42 armadillo mpd:  ENDPOINTDISC [LOCAL] 45 fb 34 03 98 28 4b 1f
a0 0c 84 c1 c1 3e 3b 05 00 00 00 04
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: SendConfigNak #1
Sep  9 10:25:42 armadillo mpd:  MP MRRU 1600
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: rec'd Configure Request #2 link
0 (Req-Sent)
Sep  9 10:25:42 armadillo mpd:  MRU 1400
Sep  9 10:25:42 armadillo mpd:  MAGICNUM 0e6c5920
Sep  9 10:25:42 armadillo mpd:  PROTOCOMP
Sep  9 10:25:42 armadillo mpd:  ACFCOMP
Sep  9 10:25:42 armadillo mpd:  MP MRRU 1600
Sep  9 10:25:42 armadillo mpd:  ENDPOINTDISC [LOCAL] 45 fb 34 03 98 28 4b 1f
a0 0c 84 c1 c1 3e 3b 05 00 00 00 04
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: SendConfigAck #2
Sep  9 10:25:42 armadillo mpd:  MRU 1400
Sep  9 10:25:42 armadillo mpd:  MAGICNUM 0e6c5920
Sep  9 10:25:42 armadillo mpd:  PROTOCOMP
Sep  9 10:25:42 armadillo mpd:  ACFCOMP
Sep  9 10:25:42 armadillo mpd:  MP MRRU 1600
Sep  9 10:25:42 armadillo mpd:  ENDPOINTDISC [LOCAL] 45 fb 34 03 98 28 4b 1f
a0 0c 84 c1 c1 3e 3b 05 00 00 00 04
Sep  9 10:25:42 armadillo mpd: [pptp0] LCP: state change Req-Sent -->
Ack-Sent
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: SendConfigReq #2
Sep  9 10:25:44 armadillo mpd:  ACFCOMP
Sep  9 10:25:44 armadillo mpd:  PROTOCOMP
Sep  9 10:25:44 armadillo mpd:  MRU 1500
Sep  9 10:25:44 armadillo mpd:  MAGICNUM 7dbc10b4
Sep  9 10:25:44 armadillo mpd:  AUTHPROTO CHAP MSOFTv2
Sep  9 10:25:44 armadillo mpd:  MP MRRU 1600
Sep  9 10:25:44 armadillo mpd:  MP SHORTSEQ
Sep  9 10:25:44 armadillo mpd:  ENDPOINTDISC [802.1] 00 04 75 99 59 37
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: rec'd Configure Reject #2 link 0
(Ack-Sent)
Sep  9 10:25:44 armadillo mpd:  MP SHORTSEQ
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: SendConfigReq #3
Sep  9 10:25:44 armadillo mpd:  ACFCOMP
Sep  9 10:25:44 armadillo mpd:  PROTOCOMP
Sep  9 10:25:44 armadillo mpd:  MRU 1500
Sep  9 10:25:44 armadillo mpd:  MAGICNUM 7dbc10b4
Sep  9 10:25:44 armadillo mpd:  AUTHPROTO CHAP MSOFTv2
Sep  9 10:25:44 armadillo mpd:  MP MRRU 1600
Sep  9 10:25:44 armadillo mpd:  ENDPOINTDISC [802.1] 00 04 75 99 59 37
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: rec'd Configure Ack #3 link 0
(Ack-Sent)
Sep  9 10:25:44 armadillo mpd:  ACFCOMP
Sep  9 10:25:44 armadillo mpd:  PROTOCOMP
Sep  9 10:25:44 armadillo mpd:  MRU 1500
Sep  9 10:25:44 armadillo mpd:  MAGICNUM 7dbc10b4
Sep  9 10:25:44 armadillo mpd:  AUTHPROTO CHAP MSOFTv2
Sep  9 10:25:44 armadillo mpd:  MP MRRU 1600
Sep  9 10:25:44 armadillo mpd:  ENDPOINTDISC [802.1] 00 04 75 99 59 37
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: state change Ack-Sent --> Opened
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: phase shift ESTABLISH -->
AUTHENTICATE
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: auth: peer wants nothing, I want
CHAP
Sep  9 10:25:44 armadillo mpd: [pptp0] CHAP: sending CHALLENGE
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: LayerUp
Sep  9 10:25:44 armadillo mpd: pptp0-0: ignoring SetLinkInfo
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: rec'd Ident #3 link 0 (Opened)
Sep  9 10:25:44 armadillo mpd:  MESG: MSRASV5.10
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: rec'd Ident #4 link 0 (Opened)
Sep  9 10:25:44 armadillo mpd:  MESG: MSRAS-0-DANLAPTOP
Sep  9 10:25:44 armadillo mpd: [pptp0] CHAP: rec'd RESPONSE #1
Sep  9 10:25:44 armadillo mpd:  Name: "dhardiker"
Sep  9 10:25:44 armadillo mpd:  Peer name: "dhardiker"
Sep  9 10:25:44 armadillo mpd:  Response is valid
Sep  9 10:25:44 armadillo mpd: [pptp0] CHAP: sending SUCCESS
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: authorization successful
Sep  9 10:25:44 armadillo mpd: [pptp0] LCP: phase shift AUTHENTICATE -->
NETWORK
Sep  9 10:25:44 armadillo mpd: [pptp0] setting interface ng0 MTU to 1500
bytes
Sep  9 10:25:44 armadillo mpd: [pptp0] up: 1 link, total bandwidth 64000 bps
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: Up event
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: state change Starting -->
Req-Sent
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: SendConfigReq #1
Sep  9 10:25:44 armadillo mpd:  IPADDR 192.168.1.3
Sep  9 10:25:44 armadillo mpd:  COMPPROTO VJCOMP, 16 comp. channels, no
comp-cid
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Open event
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: state change Initial -->
Starting
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: LayerStart
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Up event
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: state change Starting -->
Req-Sent
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: SendConfigReq #1
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 40 bits are
enabled -> yes
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 56 bits are
enabled -> no
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 128 bits are
enabled -> yes
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x01000060: MPPE, 40 bit, 128 bit,
stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: rec'd Configure Request #5 link
0 (Req-Sent)
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x010000e1: MPPC MPPE, 40 bit, 56 bit, 128
bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 40 bits are
acceptable -> yes
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 56 bits are
acceptable -> no
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 128 bits are
acceptable -> yes
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: SendConfigNak #5
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x01000040: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: rec'd Configure Request #6 link
0 (Req-Sent)
Sep  9 10:25:44 armadillo mpd:  IPADDR 0.0.0.0
Sep  9 10:25:44 armadillo mpd:    NAKing with 192.168.1.101
Sep  9 10:25:44 armadillo mpd:  PRIDNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd:    NAKing with 192.168.1.250
Sep  9 10:25:44 armadillo mpd:  PRINBNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd:    NAKing with 192.168.1.11
Sep  9 10:25:44 armadillo mpd:  SECDNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd:  SECNBNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: SendConfigRej #6
Sep  9 10:25:44 armadillo mpd:  SECDNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd:  SECNBNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: rec'd Configure Reject #1 link
0 (Req-Sent)
Sep  9 10:25:44 armadillo mpd:  COMPPROTO VJCOMP, 16 comp. channels, no
comp-cid
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: SendConfigReq #2
Sep  9 10:25:44 armadillo mpd:  IPADDR 192.168.1.3
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: rec'd Configure Nak #1 link 0
(Req-Sent)
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x01000040: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: SendConfigReq #2
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 40 bits are
enabled -> no
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 56 bits are
enabled -> no
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 128 bits are
enabled -> yes
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x01000040: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: rec'd Configure Request #7 link
0 (Req-Sent)
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x01000040: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: Checking wether 128 bits are
acceptable -> yes
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: SendConfigAck #7
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x01000040: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: state change Req-Sent -->
Ack-Sent
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: rec'd Configure Request #8 link
0 (Req-Sent)
Sep  9 10:25:44 armadillo mpd:  IPADDR 0.0.0.0
Sep  9 10:25:44 armadillo mpd:    NAKing with 192.168.1.101
Sep  9 10:25:44 armadillo mpd:  PRIDNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd:    NAKing with 192.168.1.250
Sep  9 10:25:44 armadillo mpd:  PRINBNS 0.0.0.0
Sep  9 10:25:44 armadillo mpd:    NAKing with 192.168.1.11
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: SendConfigNak #8
Sep  9 10:25:44 armadillo mpd:  IPADDR 192.168.1.101
Sep  9 10:25:44 armadillo mpd:  PRIDNS 192.168.1.250
Sep  9 10:25:44 armadillo mpd:  PRINBNS 192.168.1.11
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: rec'd Configure Ack #2 link 0
(Req-Sent)
Sep  9 10:25:44 armadillo mpd:  IPADDR 192.168.1.3
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: state change Req-Sent -->
Ack-Rcvd
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: rec'd Configure Ack #2 link 0
(Ack-Sent)
Sep  9 10:25:44 armadillo mpd:  MPPC
Sep  9 10:25:44 armadillo mpd:    0x01000040: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: state change Ack-Sent --> Opened
Sep  9 10:25:44 armadillo mpd: [pptp0] CCP: LayerUp
Sep  9 10:25:44 armadillo mpd:   Compress using: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: Decompress using: MPPE, 128 bit, stateless
Sep  9 10:25:44 armadillo mpd: [pptp0] setting interface ng0 MTU to 1500
bytes
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: rec'd Configure Request #9 link
0 (Ack-Rcvd)
Sep  9 10:25:44 armadillo mpd:  IPADDR 192.168.1.101
Sep  9 10:25:44 armadillo mpd:    192.168.1.101 is OK
Sep  9 10:25:44 armadillo mpd:  PRIDNS 192.168.1.250
Sep  9 10:25:44 armadillo mpd:  PRINBNS 192.168.1.11
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: SendConfigAck #9
Sep  9 10:25:44 armadillo mpd:  IPADDR 192.168.1.101
Sep  9 10:25:44 armadillo mpd:  PRIDNS 192.168.1.250
Sep  9 10:25:44 armadillo mpd:  PRINBNS 192.168.1.11
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: state change Ack-Rcvd -->
Opened
Sep  9 10:25:44 armadillo mpd: [pptp0] IPCP: LayerUp
Sep  9 10:25:44 armadillo mpd:   192.168.1.3 -> 192.168.1.101
Sep  9 10:25:44 armadillo mpd: [pptp0] IFACE: Up event
Sep  9 10:25:44 armadillo mpd: [pptp0] setting interface ng0 MTU to 1500
bytes
Sep  9 10:25:44 armadillo mpd: [pptp0] exec: /sbin/ifconfig ng0 192.168.1.3
192.168.1.101 netmask 0xffffffff -link0
Sep  9 10:25:44 armadillo mpd: [pptp0] exec: /usr/sbin/arp -s 192.168.1.101
0:30:1b:ae:94:e0 pub
Sep  9 10:25:44 armadillo mpd: [pptp0] exec: /sbin/route add
192.168.1.3 -iface lo0
Sep  9 10:37:24 armadillo mpd: [pptp0] LCP: no reply to 1 echo request(s)

--
Dan Hardiker [dhardiker@eorigen.com]
ADAM Systems Engineer
eOrigen Ltd



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