Re: [lwip-users] lwip tcp hangup

[vincent cui]

Do you suggest fix it by calling lwip_shutdown followed by lwip_close ?



锘?Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
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Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District, Shanghai, 
200233
http://www.enlogic.com

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Kieran Mansley
Sent: 2011年8月30日 20:06
To: Mailing list for lwIP users
Subject: Re: [lwip-users] lwip tcp hangup

On Mon, 2011-08-22 at 19:33 +0200, address@hidden wrote:
> Yugal Kishore Gupta wrote:


> > I can see that after scan I have at least 6 pcb staying for forever
> > in CLOSE_WAIT state even there is no communication and after that I
> > can not access the web server as there is no connection after that.
> > I can still ping my device successfully.
> > 
> > 
> So this seems TCP- or httpd-related. 

If it's connections in CLOSE_WAIT that are causing the problem, that
points the finger at httpd.  We have received a FIN from the other end,
and are waiting for the application to call close.

Kieran


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