LWIP 2.1.3 already provide a way for you to do SLAAC. Enable CONFIG_LWIP_IPV6_AUTOCONFIG and Look at the following functions
netif_create_ip6_linklocal_address() and eui64_copy().
You will need to send router solicitation to get the network prefix on the interface also.
Edman
Edman G. H Zayzay
Principal Embedded Software Engineer
Energy Automation Solutions (EAS)
540 Gaither Road
Suite 480
Rockville, Maryland, U.S.A. 20850
240.454.9824
From: lwip-users <lwip-users-bounces+edmangzayzay=eaton.com@nongnu.org>
On Behalf Of Thompson, Jeff
Sent: Wednesday, October 5, 2022 4:25 PM
To: lwip-users@nongnu.org
Subject: [EXTERNAL] [lwip-users] SLAAC
I think I want to use SLAAC in my device so that it can automatically configure its IPv6 address. Do I need to implement NDP or SEND to do that, or does lwIP 2.1.3 already provide that? How do I use lwIP to get my device an IPv6 address
this way? I have used DHCP to get an IPv4 address and can set up my device for a static IPv4 address, netmask, and gateway, but I have no idea how to get it configured to use IPv6. I’ve been poking around the Internet for a getting started guide or user’s
guide, but coming up empty-handed.
Jeff Thompson | Senior Electrical
Engineer - Firmware
+1 704 752 6513 x1394
www.invue.com
