[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [lwip-users] ETHARP_TRUST_IP_MAC

From: Bill Auerbach
Subject: Re: [lwip-users] ETHARP_TRUST_IP_MAC
Date: Fri, 9 Aug 2013 10:42:23 -0400



My experience is better than yours. I’ve used ETHARP_TRUST_IP_MAC in every lwIP-based product I’ve done (9 so far) and never have had a problem with it.  We have users unplug and replug cables and turn off and on power “hot” all the time and the PC apps always reconnect normally.  Our devices are often power 24/7 as well (not that they should  be – some users are lazy).




From: address@hidden [mailto:address@hidden On Behalf Of Vincent Cui
Sent: Thursday, August 08, 2013 8:00 PM
To: Mailing list for lwIP users
Subject: [lwip-users] ETHARP_TRUST_IP_MAC


Hi :


Is there anyone use ETHARP_TRUST_IP_MAC ?

One interesting happen about it is from my customer. He use the A version with ETHARP_TRUST_IP_MAC enable in LWIP, it works well after power on.

But PING request always time out after running some days, I also find the PING other device in the network is good. so, I hot reset the Device, the PING issue still exist.

Then, I upgrade the A version to B version with ETHARP_TRUST_IP_MAC disable in LWIP and hot reset, PING issue goes out. Everything goes well now .

Next, I upgrade B version to A version again and hot reset, the PING issue happen again .  but if cold reset the device with A version, PING issue goes out. But It will come back

After running many days.


Anyone has known this ?





Vincent Cui

Firmware Engineer Leader

Room1106, Building A, New Caohejing Business Centre, No.391, Guiping Road, Xuhui District, Shanghai, P.R.China

T: +86 21 34612525, M: +86 13482482211


P please consider the environment before printing this email

This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to which they are addressed.  If you have received this e-mail in error, please notify the sender immediately and then delete it.  If you are not the intended recipient, you must not use, disclose or distribute this e-mail without the author's prior permission. We have taken precautions to minimize the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message.  We cannot accept liability for any loss or damage caused by software viruses.  Any views and/or opinions expressed in this e-mail are of the author only and do not necessarily represent the views of Enlogic.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]