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No. 426 Re: Re: Re: EZL70 2007-09-02

Now I'am a little bit cleverer.
My routers fierwall has blocked input from the WWW
Now I have the following situation if a PC or mobil phone tryes do connect via WWW to the EZL70.

The EZLs state bevore a connection(yellow LED blinks):
ezTCP/LAN Rev. 1.1F 8MHz
UPTIME: 0 days, 00:00:07
----------------------------------------
MAC ADDRESS: 00:30:f9:05:04:72
IP ADDRESS: 192.168.2.110
SUBNET MASK: 255.255.255.0
GATEWAY: 192.168.2.1
[TCP LISTEN 1470]

----------------------------------------
Serial RX bytes: 0
Serial TX bytes: 0
----------------------------------------

during a client has connected (yellow LED ligths):
ezTCP/LAN Rev. 1.1F 8MHz
UPTIME: 0 days, 00:01:58
----------------------------------------
MAC ADDRESS: 00:30:f9:05:04:72
IP ADDRESS: 192.168.2.110
SUBNET MASK: 255.255.255.0
GATEWAY: 192.168.2.1
[TCP CONNECTED 193.254.160.82:50125]

----------------------------------------
Serial RX bytes: 0
Serial TX bytes: 0
----------------------------------------

after external hang up(yellow LED blinks)::

ezTCP/LAN Rev. 1.1F 8MHz
UPTIME: 0 days, 00:05:22
----------------------------------------
MAC ADDRESS: 00:30:f9:05:04:72
IP ADDRESS: 192.168.2.110
SUBNET MASK: 255.255.255.0
GATEWAY: 192.168.2.1
[TCP LISTEN 1470]

----------------------------------------
Serial RX bytes: 0
Serial TX bytes: 0
----------------------------------------

I think the connection is a deadlock, but I dont know why?
The client waits for what?
I wait on a HTTP-request from the clients browser, that I can respons.

I can not do anything?
To which time of the 3 state TCP connecting for the EZL is the connection established and the yellow LED lights full.
1. after the ACK from client or
2. earlier, if the client sends the request.

Have you an inspiration what is here happen.
Greetings from germany
H. Altmann


> Sollae Systems wrote:
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Handy= mobile phone
> The Handy don…t be connected directly via TCP to the EZL70!
>
> The line is as followed:
> Mobile phone (via GPRS, actual IP of my ROUTER or dyn DNS, Port 9201)
> 꽨 | provider ... Gateway | 꽨 HTTP
> 꽨 ROUTER(home net) 꽨EZL70(LISTEN at port 1470) and back
> Port 9201, 80, 1470 on the Router-Input are redirected to
> the IP of the EZL and the Portnr. 1470
> If I pass the Port 9201 directly throw the router and
> the EZL is Listen on 9201 it is the same result.
> I have it testet also with port 1470 from phone to EZL, result is the same.
>
> With the phone browser simulator I think it runs so:
> PC with the simulator 꽨 HTTP 꽨 EZL70 and back
> Here the connection is OK, the yellow LED lights, an I get a HTML-Header on the serial lines of the EZL
> It runs allso well with a dyn DNS.
>
> If I connect with IE-Browser the EZL, directly with his origin IP, internal my home net, I get allso a HTML-Header on the serial side of EZL(the yellow LED ligths well) .
> But if I connect the EZL with IE-Browser via the actual HTTP-IP of my router the connection is OK (the yellow LED ligths well) but I don…t get a Header on the serial side.
> I think the it waits for a special ¨anywhat〃 and it is possible it…s similary by phone-connection.
> > Sollae Systems wrote:
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > EZL-70 converts serial data to TCP and TCP data to serial.
> >
> > I don't know what is Handy.
> > But if the Handy works with TCP, I think it should work.
> >
> > Is the program of PC different with Handy's?
> >
> >
> > > Altmann wrote:
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > Is it possible do use an EZL70 as
> > > mini WAP Server?
> > > I want get informations from my home-net to my Handy.
> > > I have test it with a WAP-Browser-Simulator on my PC, there a connection is possible. (EZL is in T2S-mode)
> > > But with the Handy via the WAP-Gateway no connection is possible.
> > > If the Handy is trying the connection only the yellow LED at the EZL is short takting out of the normal blink.
> > > I think there is a missunderstanding of the TCP-Protocol between both.
> > > Can you help me to solve this?
> > > Greetings from Germany
> > > Helmut Altmann
Writer Sollae Systems Company