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SE phone though acknowledges some previously acknowledged
packet (ethereal shows this as DupACK). web server then resends data
but it does not pass through LVS-NAT.
We could enhance IPVS to accept such traffic, however I'd much rather
like to understand the root of the problem.
Now I see such behaviour of IPVS as bogus. But I'm just an amateur. :)
I wouldn't classify the behaviour as "bogus", it's a design
consideration. I've previously mentioned the possibility to handle the
TCP state transition differently. Especially with the forward shared
approach and the LVS-NAT we would have real TCP state tracking for
session templates. LVS-DR and LVS-TUN will always be a compromise with
regard to TCP state transition handling.
SE phone behaves strange but it does not violate TCP/IP. Or it does? But as
I don't know, there were not enough indications in your provided caps to
qualify either statement.
you understand maybe only Vodafone could kick SE and make it program more
carefully. :)
Any they should, since SE is gaining momentum on the market. For some
reason vodafone is busier figuring out how their SOA portfolio should
look like for their potential customers than to actually address
unimportant things like a buggy TCP stack. Either we find out directly
what's wrong with those phones or we try to find an elegant solution for
LVS, without breaking it for all the other people. The immediate fix I
have in mind is too intrusive and severely lacks security, so we have to
think about it a bit.
BTW, can you get the network event messages from the phone?
AT+CREG=1
AT*EAPP=3,1,"http://www.google.com";
Or we put a lwTCP stack on the phone :):
http://savannah.nongnu.org/projects/lwip/
As I've heard they did that to Nokia after one of new Nokia
phone behaved very badly. :)
Yeah, mobile phones are pushed out to the market so fast that quality
assurance is almost not possible anymore. And often also not in the
interest of the companies. You can charge your customers twice if you
release a slightly defective product. This works in oligopolic markets
where people depend on the product and where you have some sort of
micro-billing and no concept of customer feedback integration.
Enjoy your weekend,
Roberto Nibali, ratz
--
echo
'[q]sa[ln0=aln256%Pln256/snlbx]sb3135071790101768542287578439snlbxq' | dc
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