Help needed: cannot send packets larger 230 bytes via vodafone umts

"Rehsack Jens \(ext\)" <[email protected]> Tue, 11 Oct 2005 12:03:18 +0200

Newsgroups	gmane.os.freebsd.devel.mobile
Message-ID	<CE3682EF98A64140B2BF376C39461E0A02FA4F@krbdf7ma.ww011.siemens.net>

Hi all,

after weeks of waiting my UMTS Card arrives (web-search ensures
me that it will work - eg. le's Blog ...)

So I figured out how to configure ppp (it's not trivial! ;-)) and
after around 5 or 6 hours I get it run that way, that nslookup
& ping works ...

And that's all - here I stopped and can't get any progress.

I started some diagnostics why my web wont work, and detected
that packets larger than 229 byte payload via ping will swallowed
by the connection (I don't know where).

I'll attach my ppp.conf, the log of ppp, the commands I used to test
and the according tcpdump output.

Any help would be welcome.

Best regards,
Jens

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umts-test-commands (application/octet-stream, 1.3 KB) - not displayed

ppp.conf (application/octet-stream, 1.9 KB)

#################################################################
# PPP  Sample Configuration File
# Originally written by Toshiharu OHNO
# Simplified 5/14/1999 by [email protected]
#
# See /usr/share/examples/ppp/ for some examples
#
# $FreeBSD: src/etc/ppp/ppp.conf,v 1.10 2004/11/19 17:12:56 obrien 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/cuad4

 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)

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

vodafone:
 set device /dev/cuad4
 #set speed sync
 set speed 460800
 #set speed 115200
 #set speed 57600
 set phone *99***1\#
 set mru max 296
 set mtu max 296
 set mrru 296

 set dial "ABORT BUSY ABORT NO\\sCARRIER ABORT ERROR TIMEOUT 5 \
	\"\" AT OK-AT-OK \
	AT+CGDCONT=2,\\\"IP\\\",\\\"web.vodafone.de\\\" OK \
	AT OK-AT-OK \\dATDT\\T TIMEOUT 40 CONNECT"

 disable dns

 disable pred1 deflate deflate24 protocomp acfcomp shortseq vj
 deny pred1 deflate deflate24 protocomp acfcomp shortseq vj

 set authname user
 set authkey passwort

 accept PAP
 set login
 add default HISADDR
 set ifaddr 10.0.0.1/0 10.0.0.2/0 0.0.0.0 0.0.0.0
 accept lqr

 #set log All
 set log Phase LCP IPCP CCP Warning Error Alert tun command Chat TCP/IP

 disable ipv6cp
 enable ipcp
 set reconnect 3 15
 set timeout 3000

ppp.log (application/octet-stream, 0 B)

tcpdump.umts (application/octet-stream, 5 KB) - not displayed