Date: Tue, 11 Oct 2005 15:05:07 +0200 From: "Rehsack Jens \(ext\)" <jens.rehsack.ext@siemensvdo.com> To: "Andrew Gordon" <arg-bsd@arg.me.uk> Cc: freebsd-mobile@freebsd.org Subject: RE: Help needed: cannot send packets larger 230 bytes via vodafone umts Message-ID: <CE3682EF98A64140B2BF376C39461E0A02FA5F@krbdf7ma.ww011.siemens.net>
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-----Original Message----- From: Andrew Gordon [mailto:arg-bsd@arg.me.uk]=20 Sent: Tuesday, October 11, 2005 2:55 PM To: Rehsack Jens (ext) Cc: freebsd-mobile@freebsd.org Subject: RE: Help needed: cannot send packets larger 230 bytes via vodafone umts > On Tue, 11 Oct 2005, Rehsack Jens (ext) wrote: > > > > > > > > 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 ... >=20 > Your ppp.conf looks a bit more complex than needed, but on the other hand > doesn't seem to contain the "AT_opsys=3D3,2" to request UMTS (versus GPRS). > Maybe your card defaults to UMTS. My cards answers with "ERROR" to the at_opsys command. > Mine looks like: [SNIP] I seen in the logs and tried even - wont work for me. > Note that this is for the Vodafone-branded 'Option' cardbus card, which > contains a USB controller and a USB serial port (as discussed on this > mailing list a week or so ago). I use the '2g' entry in ppp.conf to avoid > roaming onto 3G networks which have voice interworking with Vodafone but > not data (this may not be as much a problem now as it was last year, but > in any case with roaming charges so high, slowing down to GPRS rates when > roaming is no bad thing). Hmm - when I get in run, I'll think about roaming ;) Anyway I will keep in mind - thanks for that explanation. > > And horribly I had to see, that traceroute seems to transport even > > larger packets an get's the wanted answers. I also tried after that > > shock >traceroute -P TCP< and seen, that it works, too. > > > > But an >echo "GET / > > " | telnet www.uni-halle.de 80< didn't get any answer (keeps empty). >=20 > I'm fairly sure that Vodafone have a transparent proxy on port 80. It > used to be a specialised one that replaced graphics files in web pages > with more-heavily-compressed versions of the original file, though that > might be only when using GPRS rather than 3G. >=20 > Did you try something like ssh? Yes, I tried. I even tried IRC. It's the same :-( > Note also that Vodafone are certainly doing NAT. That shouldn't bother me. As long as they do it fine ;) > [All the above based on Vodafone UK behaviour, and roaming to various > places; I've not actually tried it in Germany]. The problem is, that vodafone wont give support for anything except windows and macosx. So finally I'm nearly helpless with this situation :/ Best regards, Jens
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