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Re: [lwip-users] LWIP Dual Stack - IPv4 and IPv6
From: |
Sylvain Rochet |
Subject: |
Re: [lwip-users] LWIP Dual Stack - IPv4 and IPv6 |
Date: |
Fri, 16 Jul 2021 13:38:50 +0200 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
Hi Edman,
On Thu, Jul 15, 2021 at 04:24:29PM +0000, Zayzay, Edman G wrote:
> Hi,
>
> I am running LwiP 2.1.2 and have been able to successfully run IPv4
> and IPv6 individually with PPPoS. However, whenever I enable both IPv4
> and IPv6 on PPPoS, I am seeing only the IPV6CP ConfigReq is being
> responded to. I do not see one IPCP ConfigReq goes out and nothing is
> sent. I tested on the Linux and saw the Linux is sending multiple IPCP
> ConfigReq during negotiation until the modem respond to both IPCP and
> IPv6CP ConfigReq. My FSM_TIMEOUT is set to the default 6 seconds. When
> the PPPoS negotiation completes, I see the IPv6 address assigned but
> nothing is assigned for IPv4. I view of the above, Is there a way I
> can ensure that LWip continues to send the IPCP ConfigReq until the
> modem respond so that both IPv4 and IPv6 address are assigned?
>
> Please see below a snippet of the debug output
That is strange, you should see IPCP retries at least, could you try
adding more timers by setting a large value to MEMP_NUM_SYS_TIMEOUT ?
Sylvain
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