[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [lwip-users] autoip usage
From: |
vincent cui |
Subject: |
Re: [lwip-users] autoip usage |
Date: |
Mon, 5 Dec 2011 13:09:32 +0000 |
Simon:
In my code,,, I check the failure of DHCP getting valid address by trying to
check the IP address allocated, if try times is great than the 20, the DHCP
doesn't get a valid address.
You said that "autoIP is started when DHCP does not get an address after ~30-40
seconds",,, so I could start autoIP at once after DHCP cann't get a valid
address... in this case.
LWIP_DHCP_AUTOIP_COOP still work ?
In actually, 30 ~40 seconds is too long to me ? could I modify it ?
Vincent Cui
Sr. Firmware Engineer
Mobile: +8613255150315
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District, Shanghai,
200233
-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Simon Goldschmidt
Sent: 2011年12月5日 20:34
To: Mailing list for lwIP users
Subject: Re: [lwip-users] autoip usage
vincent cui <address@hidden> wrote:
> I am gonna to enable AUTOIP when DHCP detection fail after trying some
> times.
LWIP_DHCP_AUTOIP_COOP does this for you. When LWIP_DHCP_AUTOIP_COOP==1,
LWIP_DHCP==1 and LWIP_AUTOIP==1, autoIP is started when DHCP does not get an
address after ~30-40 seconds. DHCP is still continued in the background then
(with increased retry-delays), so if you plug in a DHCP server later, it will
switch back to DHCP. Also this sequence is restarted when the link status goes
back to 'up'.
Simon
--
Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir
belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de
_______________________________________________
lwip-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/lwip-users